Merge branch 'main' of https://github.com/foss42/apidash into add-go-http-codegen

2025-08-06 05:32:26 +08:00 · 2024-03-12 12:30:03 +05:30
parent be33809173 67fcc66aa2
commit 35dc30e52d
32 changed files with 1589 additions and 586 deletions
--- a/lib/codegen/codegen.dart
+++ b/lib/codegen/codegen.dart
@ -1,6 +1,7 @@
 import 'package:apidash/codegen/go/http.dart';
 import 'package:apidash/models/models.dart' show RequestModel;
 import 'package:apidash/consts.dart';
+import 'package:apidash/utils/utils.dart' show getNewUuid;
 import 'dart/http.dart';
 import 'dart/dio.dart';
 import 'kotlin/okhttp.dart';
@ -15,36 +16,45 @@ class Codegen {
  String? getCode(
    CodegenLanguage codegenLanguage,
    RequestModel requestModel,
-    String defaultUriScheme,
-  ) {
+    String defaultUriScheme, {
+    String? boundary,
+  }) {
+    String url = requestModel.url;
+
+    if (url.isEmpty) {
+      url = kDefaultUri;
+    }
+    if (!url.contains("://") && url.isNotEmpty) {
+      url = "$defaultUriScheme://$url";
+    }
+    var rM = requestModel.copyWith(url: url);
+
    switch (codegenLanguage) {
      case CodegenLanguage.curl:
-        return cURLCodeGen().getCode(requestModel, defaultUriScheme);
+        return cURLCodeGen().getCode(rM);
      case CodegenLanguage.har:
-        return HARCodeGen().getCode(requestModel, defaultUriScheme);
+        return HARCodeGen().getCode(rM, defaultUriScheme, boundary: boundary);
      case CodegenLanguage.dartHttp:
-        return DartHttpCodeGen().getCode(requestModel, defaultUriScheme);
+        return DartHttpCodeGen().getCode(rM);
      case CodegenLanguage.dartDio:
-        return DartDioCodeGen().getCode(requestModel, defaultUriScheme);
+        return DartDioCodeGen().getCode(rM);
      case CodegenLanguage.jsAxios:
-        return AxiosCodeGen().getCode(requestModel, defaultUriScheme);
+        return AxiosCodeGen().getCode(rM);
      case CodegenLanguage.jsFetch:
-        return FetchCodeGen().getCode(requestModel, defaultUriScheme);
+        return FetchCodeGen().getCode(rM);
      case CodegenLanguage.nodejsAxios:
-        return AxiosCodeGen(isNodeJs: true)
-            .getCode(requestModel, defaultUriScheme);
+        return AxiosCodeGen(isNodeJs: true).getCode(rM);
      case CodegenLanguage.nodejsFetch:
-        return FetchCodeGen(isNodeJs: true)
-            .getCode(requestModel, defaultUriScheme);
+        return FetchCodeGen(isNodeJs: true).getCode(rM);
      case CodegenLanguage.kotlinOkHttp:
-        return KotlinOkHttpCodeGen().getCode(requestModel, defaultUriScheme);
+        return KotlinOkHttpCodeGen().getCode(rM);
      case CodegenLanguage.pythonHttpClient:
        return PythonHttpClientCodeGen()
-            .getCode(requestModel, defaultUriScheme);
+            .getCode(rM, boundary: boundary ?? getNewUuid());
      case CodegenLanguage.pythonRequests:
-        return PythonRequestsCodeGen().getCode(requestModel, defaultUriScheme);
+        return PythonRequestsCodeGen().getCode(rM, boundary: boundary);
      case CodegenLanguage.goHttp:
-        return GoHttpCodeGen().getCode(requestModel, defaultUriScheme);
+        return GoHttpCodeGen().getCode(rM);
    }
  }
 }
--- a/lib/codegen/codegen_utils.dart
+++ b/lib/codegen/codegen_utils.dart
@ -0,0 +1,15 @@
+String jsonToPyDict(String jsonString) {
+  Map<String, String> replaceWithMap = {
+    "null": "None",
+    "true": "True",
+    "false": "False"
+  };
+  String pyDict = jsonString;
+  for (var k in replaceWithMap.keys) {
+    RegExp regExp = RegExp(k + r'(?=([^"]*"[^"]*")*[^"]*$)');
+    pyDict = pyDict.replaceAllMapped(regExp, (match) {
+      return replaceWithMap[match.group(0)] ?? match.group(0)!;
+    });
+  }
+  return pyDict;
+}
--- a/lib/codegen/dart/dio.dart
+++ b/lib/codegen/dart/dio.dart
@ -8,15 +8,10 @@ import 'shared.dart';
 class DartDioCodeGen {
  String? getCode(
    RequestModel requestModel,
-    String defaultUriScheme,
  ) {
    try {
-      String url = requestModel.url;
-      if (!url.contains("://") && url.isNotEmpty) {
-        url = "$defaultUriScheme://$url";
-      }
      final next = generatedDartCode(
-        url: url,
+        url: requestModel.url,
        method: requestModel.method,
        queryParams: requestModel.enabledParamsMap,
        headers: requestModel.enabledHeadersMap,
--- a/lib/codegen/dart/http.dart
+++ b/lib/codegen/dart/http.dart
@ -9,15 +9,10 @@ import 'shared.dart';
 class DartHttpCodeGen {
  String? getCode(
    RequestModel requestModel,
-    String defaultUriScheme,
  ) {
    try {
-      String url = requestModel.url;
-      if (!url.contains("://") && url.isNotEmpty) {
-        url = "$defaultUriScheme://$url";
-      }
      final next = generatedDartCode(
-        url: url,
+        url: requestModel.url,
        method: requestModel.method,
        queryParams: requestModel.enabledParamsMap,
        headers: {...requestModel.enabledHeadersMap},
--- a/lib/codegen/js/axios.dart
+++ b/lib/codegen/js/axios.dart
@ -12,7 +12,7 @@ class AxiosCodeGen {

  String kStringImportNode = """{% if isNodeJs %}import axios from 'axios';

-{% endif %}{% if isFormDataRequest and isNodeJs %}const fs = require('fs');{% endif %}
+{% endif %}{% if hasFormData and isNodeJs %}const fs = require('fs');{% endif %}
 """;

  String kTemplateStart = """let config = {
@ -73,18 +73,16 @@ async function buildFormData(fields) {
 ''';
  String? getCode(
    RequestModel requestModel,
-    String defaultUriScheme,
  ) {
    try {
      jj.Template kNodejsImportTemplate = jj.Template(kStringImportNode);
      String importsData = kNodejsImportTemplate.render({
-        "isFormDataRequest": requestModel.isFormDataRequest,
+        "hasFormData": requestModel.hasFormData,
        "isNodeJs": isNodeJs,
      });

      String result = importsData;
-      if (requestModel.isFormDataRequest &&
-          requestModel.formDataMapList.isNotEmpty) {
+      if (requestModel.hasFormData && requestModel.formDataMapList.isNotEmpty) {
        var templateMultiPartBody = jj.Template(kMultiPartBodyTemplate);
        var renderedMultiPartBody = templateMultiPartBody.render({
          "isNodeJs": isNodeJs,
@ -92,17 +90,14 @@ async function buildFormData(fields) {
        result += renderedMultiPartBody;
      }

-      String url = requestModel.url;
-      if (!url.contains("://") && url.isNotEmpty) {
-        url = "$defaultUriScheme://$url";
-      }
-      var rM = requestModel.copyWith(url: url);
-
-      var harJson = requestModelToHARJsonRequest(rM, useEnabled: true);
+      var harJson = requestModelToHARJsonRequest(
+        requestModel,
+        useEnabled: true,
+      );

      var templateStart = jj.Template(kTemplateStart);
      result += templateStart.render({
-        "url": stripUrlParams(url),
+        "url": stripUrlParams(requestModel.url),
        "method": harJson["method"].toLowerCase(),
      });

@ -118,22 +113,21 @@ async function buildFormData(fields) {
      }

      var headers = harJson["headers"];
-      if (headers.isNotEmpty || requestModel.isFormDataRequest) {
+      if (headers.isNotEmpty || requestModel.hasFormData) {
        var templateHeader = jj.Template(kTemplateHeader);
        var m = {};
        for (var i in headers) {
          m[i["name"]] = i["value"];
        }
-        if (requestModel.isFormDataRequest) {
-          m['Content-Type'] = 'multipart/form-data';
+        if (requestModel.hasFormData) {
+          m[kHeaderContentType] = 'multipart/form-data';
        }
        result += templateHeader
            .render({"headers": padMultilineString(kEncoder.convert(m), 2)});
      }
      var templateBody = jj.Template(kTemplateBody);

-      if (requestModel.isFormDataRequest &&
-          requestModel.formDataMapList.isNotEmpty) {
+      if (requestModel.hasFormData && requestModel.formDataMapList.isNotEmpty) {
        var getFieldDataTemplate = jj.Template(kGetFormDataTemplate);

        result += templateBody.render({
--- a/lib/codegen/js/fetch.dart
+++ b/lib/codegen/js/fetch.dart
@ -12,7 +12,7 @@ class FetchCodeGen {

  String kStringImportNode = """
 import fetch from 'node-fetch';
-{% if isFormDataRequest %}const fs = require('fs');{% endif %}
+{% if hasFormData %}const fs = require('fs');{% endif %}

 """;

@ -73,29 +73,26 @@ fetch(url, options)

  String? getCode(
    RequestModel requestModel,
-    String defaultUriScheme,
  ) {
    try {
      jj.Template kNodejsImportTemplate = jj.Template(kStringImportNode);
      String importsData = kNodejsImportTemplate.render({
-        "isFormDataRequest": requestModel.isFormDataRequest,
+        "hasFormData": requestModel.hasFormData,
      });

      String result = isNodeJs ? importsData : "";
-      if (requestModel.isFormDataRequest) {
+      if (requestModel.hasFormData) {
        var templateMultiPartBody = jj.Template(kMultiPartBodyTemplate);
        result += templateMultiPartBody.render({
          "isNodeJs": isNodeJs,
          "fields_list": json.encode(requestModel.formDataMapList),
        });
      }
-      String url = requestModel.url;
-      if (!url.contains("://") && url.isNotEmpty) {
-        url = "$defaultUriScheme://$url";
-      }
-      var rM = requestModel.copyWith(url: url);

-      var harJson = requestModelToHARJsonRequest(rM, useEnabled: true);
+      var harJson = requestModelToHARJsonRequest(
+        requestModel,
+        useEnabled: true,
+      );

      var templateStart = jj.Template(kTemplateStart);
      result += templateStart.render({
@ -108,8 +105,8 @@ fetch(url, options)
      if (headers.isNotEmpty) {
        var templateHeader = jj.Template(kTemplateHeader);
        var m = {};
-        if (requestModel.isFormDataRequest) {
-          m["Content-Type"] = "multipart/form-data";
+        if (requestModel.hasFormData) {
+          m[kHeaderContentType] = "multipart/form-data";
        }
        for (var i in headers) {
          m[i["name"]] = i["value"];
@ -124,7 +121,7 @@ fetch(url, options)
        result += templateBody.render({
          "body": kEncoder.convert(harJson["postData"]["text"]),
        });
-      } else if (requestModel.isFormDataRequest) {
+      } else if (requestModel.hasFormData) {
        var templateBody = jj.Template(kTemplateBody);
        result += templateBody.render({
          "body": 'payload',
--- a/lib/codegen/kotlin/okhttp.dart
+++ b/lib/codegen/kotlin/okhttp.dart
@ -75,7 +75,6 @@ import okhttp3.MultipartBody""";

  String? getCode(
    RequestModel requestModel,
-    String defaultUriScheme,
  ) {
    try {
      String result = "";
@ -83,13 +82,8 @@ import okhttp3.MultipartBody""";
      bool hasBody = false;
      bool hasFormData = false;

-      String url = requestModel.url;
-      if (!url.contains("://") && url.isNotEmpty) {
-        url = "$defaultUriScheme://$url";
-      }
-
      var rec = getValidRequestUri(
-        url,
+        requestModel.url,
        requestModel.enabledRequestParams,
      );
      Uri? uri = rec.$1;
@ -113,7 +107,7 @@ import okhttp3.MultipartBody""";

        var method = requestModel.method;
        var requestBody = requestModel.requestBody;
-        if (requestModel.isFormDataRequest) {
+        if (requestModel.hasFormData) {
          hasFormData = true;
          var formDataTemplate = jj.Template(kFormDataBody);

@ -152,7 +146,7 @@ import okhttp3.MultipartBody""";
        var templateRequestEnd = jj.Template(kTemplateRequestEnd);
        result += templateRequestEnd.render({
          "method": method.name.toLowerCase(),
-          "hasBody": (hasBody || requestModel.isFormDataRequest) ? "body" : "",
+          "hasBody": (hasBody || requestModel.hasFormData) ? "body" : "",
        });
      }
      return result;
--- a/lib/codegen/others/curl.dart
+++ b/lib/codegen/others/curl.dart
@ -1,6 +1,7 @@
 import 'package:jinja/jinja.dart' as jj;
 import 'package:apidash/utils/utils.dart' show requestModelToHARJsonRequest;
 import 'package:apidash/models/models.dart' show RequestModel;
+import 'package:apidash/consts.dart';

 // ignore: camel_case_types
 class cURLCodeGen {
@ -11,7 +12,7 @@ class cURLCodeGen {
  --header '{{name}}: {{value}}'
 """;
  String kTemplateFormData = """ \\
-  --form '{{name}}: {{value}}'
+  --form '{{name}}={{value}}'
 """;

  String kTemplateBody = """ \\
@ -20,25 +21,21 @@ class cURLCodeGen {

  String? getCode(
    RequestModel requestModel,
-    String defaultUriScheme,
  ) {
    try {
      String result = "";

-      String url = requestModel.url;
-      if (!url.contains("://") && url.isNotEmpty) {
-        url = "$defaultUriScheme://$url";
-      }
-      var rM = requestModel.copyWith(url: url);
-
-      var harJson = requestModelToHARJsonRequest(rM, useEnabled: true);
+      var harJson = requestModelToHARJsonRequest(
+        requestModel,
+        useEnabled: true,
+      );

      var templateStart = jj.Template(kTemplateStart);
      result += templateStart.render({
        "method": switch (harJson["method"]) {
          "GET" => "",
          "HEAD" => " --head",
-          _ => " --request ${harJson["method"]} \\\n"
+          _ => " --request ${harJson["method"]} \\\n "
        },
        "url": harJson["url"],
      });
@ -46,33 +43,31 @@ class cURLCodeGen {
      var headers = harJson["headers"];
      if (headers.isNotEmpty) {
        for (var item in headers) {
+          if (requestModel.hasFormData && item["name"] == kHeaderContentType) {
+            continue;
+          }
          var templateHeader = jj.Template(kTemplateHeader);
          result += templateHeader
              .render({"name": item["name"], "value": item["value"]});
        }
      }
-      if (harJson['formData'] != null) {
-        var formDataList = harJson['formData'] as List<Map<String, dynamic>>;
-        for (var formData in formDataList) {
+
+      if (requestModel.hasJsonData || requestModel.hasTextData) {
+        var templateBody = jj.Template(kTemplateBody);
+        result += templateBody.render({"body": requestModel.requestBody});
+      } else if (requestModel.hasFormData) {
+        for (var formData in requestModel.formDataList) {
          var templateFormData = jj.Template(kTemplateFormData);
-          if (formData['type'] != null &&
-              formData['name'] != null &&
-              formData['value'] != null &&
-              formData['name']!.isNotEmpty &&
-              formData['value']!.isNotEmpty) {
+          if (formData.name.isNotEmpty && formData.value.isNotEmpty) {
            result += templateFormData.render({
-              "name": formData["name"],
+              "name": formData.name,
              "value":
-                  "${formData['type'] == 'file' ? '@' : ''}${formData["value"]}",
+                  "${formData.type == FormDataType.file ? '@' : ''}${formData.value}",
            });
          }
        }
      }

-      if (harJson["postData"]?["text"] != null) {
-        var templateBody = jj.Template(kTemplateBody);
-        result += templateBody.render({"body": harJson["postData"]["text"]});
-      }
      return result;
    } catch (e) {
      return null;
--- a/lib/codegen/others/har.dart
+++ b/lib/codegen/others/har.dart
@ -5,13 +5,15 @@ import 'package:apidash/models/models.dart' show RequestModel;
 class HARCodeGen {
  String? getCode(
    RequestModel requestModel,
-    String defaultUriScheme,
-  ) {
+    String defaultUriScheme, {
+    String? boundary,
+  }) {
    try {
      var harString = kEncoder.convert(requestModelToHARJsonRequest(
        requestModel,
        defaultUriScheme: defaultUriScheme,
        useEnabled: true,
+        boundary: boundary,
      ));
      return harString;
    } catch (e) {
--- a/lib/codegen/python/http_client.dart
+++ b/lib/codegen/python/http_client.dart
@ -2,13 +2,13 @@ import 'dart:io';
 import 'dart:convert';
 import 'package:jinja/jinja.dart' as jj;
 import 'package:apidash/utils/utils.dart'
-    show getNewUuid, getValidRequestUri, padMultilineString;
+    show getValidRequestUri, padMultilineString;
 import 'package:apidash/models/models.dart' show RequestModel;
 import 'package:apidash/consts.dart';

 class PythonHttpClientCodeGen {
  final String kTemplateStart = """import http.client
-{% if isFormDataRequest %}import mimetypes
+{% if hasFormData %}import mimetypes
 from codecs import encode
 {% endif %}
 """;
@ -87,30 +87,23 @@ dataList = build_data_list({{fields_list}})
 body = b'\r\n'.join(dataList)
 ''';
  String? getCode(
-    RequestModel requestModel,
-    String defaultUriScheme,
-  ) {
-    String uuid = getNewUuid();
-
+    RequestModel requestModel, {
+    String? boundary,
+  }) {
    try {
      String result = "";
      bool hasHeaders = false;
      bool hasQuery = false;
      bool hasBody = false;

-      String url = requestModel.url;
-      if (!url.contains("://") && url.isNotEmpty) {
-        url = "$defaultUriScheme://$url";
-      }
-
      var templateStartUrl = jj.Template(kTemplateStart);
      result += templateStartUrl.render(
        {
-          "isFormDataRequest": requestModel.isFormDataRequest,
+          "hasFormData": requestModel.hasFormData,
        },
      );
      var rec = getValidRequestUri(
-        url,
+        requestModel.url,
        requestModel.enabledRequestParams,
      );

@ -132,7 +125,7 @@ body = b'\r\n'.join(dataList)
        var requestBody = requestModel.requestBody;
        if (kMethodsWithBody.contains(method) &&
            requestBody != null &&
-            !requestModel.isFormDataRequest) {
+            !requestModel.hasFormData) {
          var contentLength = utf8.encode(requestBody).length;
          if (contentLength > 0) {
            hasBody = true;
@ -144,11 +137,11 @@ body = b'\r\n'.join(dataList)
        var headersList = requestModel.enabledRequestHeaders;
        if (headersList != null || hasBody) {
          var headers = requestModel.enabledHeadersMap;
-          if (requestModel.isFormDataRequest) {
+          if (requestModel.hasFormData) {
            var formHeaderTemplate =
                jj.Template(kTemplateFormHeaderContentType);
            headers[HttpHeaders.contentTypeHeader] = formHeaderTemplate.render({
-              "boundary": uuid,
+              "boundary": boundary,
            });
          }

@ -164,12 +157,12 @@ body = b'\r\n'.join(dataList)
            result += templateHeaders.render({"headers": headersString});
          }
        }
-        if (requestModel.isFormDataRequest) {
+        if (requestModel.hasFormData) {
          var formDataBodyData = jj.Template(kStringFormDataBody);
          result += formDataBodyData.render(
            {
              "fields_list": json.encode(requestModel.formDataMapList),
-              "boundary": uuid,
+              "boundary": boundary,
            },
          );
        }
@ -186,11 +179,11 @@ body = b'\r\n'.join(dataList)
          "queryParamsStr": hasQuery ? " + queryParamsStr" : "",
        });

-        if (hasBody || requestModel.isFormDataRequest) {
+        if (hasBody || requestModel.hasFormData) {
          result += kStringRequestBody;
        }

-        if (hasHeaders || requestModel.isFormDataRequest) {
+        if (hasHeaders || requestModel.hasFormData) {
          result += kStringRequestHeaders;
        }

--- a/lib/codegen/python/requests.dart
+++ b/lib/codegen/python/requests.dart
@ -1,15 +1,14 @@
 import 'dart:io';
-import 'dart:convert';
 import 'package:jinja/jinja.dart' as jj;
 import 'package:apidash/consts.dart';
 import 'package:apidash/utils/utils.dart'
-    show getNewUuid, getValidRequestUri, padMultilineString, stripUriParams;
+    show getValidRequestUri, stripUriParams, getFilenameFromPath;
 import 'package:apidash/models/models.dart' show RequestModel;
+import '../codegen_utils.dart';

 class PythonRequestsCodeGen {
  final String kTemplateStart = """import requests
-{% if isFormDataRequest %}import mimetypes
-from codecs import encode
+{% if hasFormData %}from requests_toolbelt.multipart.encoder import MultipartEncoder
 {% endif %}
 url = '{{url}}'

@ -20,7 +19,6 @@ url = '{{url}}'
 params = {{params}}

 """;
-  int kParamsPadding = 9;

  String kTemplateBody = """

@ -39,44 +37,27 @@ payload = {{body}}
 headers = {{headers}}

 """;
-  String kTemplateFormHeaderContentType = '''
-multipart/form-data; boundary={{boundary}}''';
-
-  int kHeadersPadding = 10;

  String kTemplateRequest = """

 response = requests.{{method}}(url
 """;

-  final String kStringFormDataBody = r'''
+  final String kTemplateFormDataBody = r'''

-def build_data_list(fields):
-    dataList = []
-    for field in fields:
-        name = field.get('name', '')
-        value = field.get('value', '')
-        type_ = field.get('type', 'text')
+payload = MultipartEncoder({
+{{formdata_payload}}
+}{% if boundary != '' %}, 
+    boundary="{{boundary}}"
+{% endif %})

-        dataList.append(encode('--{{boundary}}'))
-        if type_ == 'text':
-            dataList.append(encode(f'Content-Disposition: form-data; name="{name}"'))
-            dataList.append(encode('Content-Type: text/plain'))
-            dataList.append(encode(''))
-            dataList.append(encode(value))
-        elif type_ == 'file':
-            dataList.append(encode(f'Content-Disposition: form-data; name="{name}"; filename="{value}"'))
-            dataList.append(encode(f'Content-Type: {mimetypes.guess_type(value)[0] or "application/octet-stream"}'))
-            dataList.append(encode(''))
-            dataList.append(open(value, 'rb').read())
-    dataList.append(encode('--{{boundary}}--'))
-    dataList.append(encode(''))
-    return dataList
-
-dataList = build_data_list({{fields_list}})
-payload = b'\r\n'.join(dataList)
 ''';

+  String kTemplateFormDataRowText = r"""  "{{name}}": "{{value}}",""";
+
+  String kTemplateFormDataRowFile =
+      r"""  "{{name}}": ("{{filename}}", open("{{path}}", "rb")),""";
+
  String kStringRequestParams = """, params=params""";

  String kStringRequestBody = """, data=payload""";
@ -91,25 +72,26 @@ print('Status Code:', response.status_code)
 print('Response Body:', response.text)
 """;

+  String kStringFormDataContentType = "payload.content_type";
+
+  String refactorHeaderString(String headerString) {
+    return headerString.replaceAll(
+        '"$kStringFormDataContentType"', kStringFormDataContentType);
+  }
+
  String? getCode(
-    RequestModel requestModel,
-    String defaultUriScheme,
-  ) {
+    RequestModel requestModel, {
+    String? boundary,
+  }) {
    try {
      String result = "";
      bool hasQuery = false;
      bool hasHeaders = false;
      bool hasBody = false;
      bool hasJsonBody = false;
-      String uuid = getNewUuid();
-
-      String url = requestModel.url;
-      if (!url.contains("://") && url.isNotEmpty) {
-        url = "$defaultUriScheme://$url";
-      }

      var rec = getValidRequestUri(
-        url,
+        requestModel.url,
        requestModel.enabledRequestParams,
      );
      Uri? uri = rec.$1;
@ -117,7 +99,7 @@ print('Response Body:', response.text)
        var templateStartUrl = jj.Template(kTemplateStart);
        result += templateStartUrl.render({
          "url": stripUriParams(uri),
-          'isFormDataRequest': requestModel.isFormDataRequest
+          'hasFormData': requestModel.hasFormData
        });

        if (uri.hasQuery) {
@ -126,77 +108,85 @@ print('Response Body:', response.text)
            hasQuery = true;
            var templateParams = jj.Template(kTemplateParams);
            var paramsString = kEncoder.convert(params);
-            paramsString = padMultilineString(paramsString, kParamsPadding);
            result += templateParams.render({"params": paramsString});
          }
        }

-        var method = requestModel.method;
-        var requestBody = requestModel.requestBody;
-        if (kMethodsWithBody.contains(method) && requestBody != null) {
-          var contentLength = utf8.encode(requestBody).length;
-          if (contentLength > 0) {
-            if (requestModel.requestBodyContentType == ContentType.json) {
-              hasJsonBody = true;
-              var templateBody = jj.Template(kTemplateJson);
-              result += templateBody.render({"body": requestBody});
-            } else if (!requestModel.isFormDataRequest) {
-              hasBody = true;
-              var templateBody = jj.Template(kTemplateBody);
-              result += templateBody.render({"body": requestBody});
+        if (requestModel.hasFormData) {
+          hasBody = true;
+          List<String> formdataPayload = [];
+          for (var item in requestModel.formDataList) {
+            if (item.type == FormDataType.text) {
+              formdataPayload.add(jj.Template(kTemplateFormDataRowText).render({
+                "name": item.name,
+                "value": item.value,
+              }));
+            }
+            if (item.type == FormDataType.file) {
+              formdataPayload.add(jj.Template(kTemplateFormDataRowFile).render({
+                "name": item.name,
+                "filename": getFilenameFromPath(item.value),
+                "path": item.value,
+              }));
            }
          }
+          var formDataBodyData = jj.Template(kTemplateFormDataBody);
+          result += formDataBodyData.render(
+            {
+              "formdata_payload": formdataPayload.join("\n"),
+              "boundary": boundary ?? '',
+            },
+          );
+        } else if (requestModel.hasJsonData) {
+          hasJsonBody = true;
+          var templateBody = jj.Template(kTemplateJson);
+          var pyDict = jsonToPyDict(requestModel.requestBody ?? "");
+          result += templateBody.render({"body": pyDict});
+        } else if (requestModel.hasTextData) {
+          hasBody = true;
+          var templateBody = jj.Template(kTemplateBody);
+          result += templateBody.render({"body": requestModel.requestBody});
        }

        var headersList = requestModel.enabledRequestHeaders;
        if (headersList != null || hasBody) {
          var headers = requestModel.enabledHeadersMap;
-          if (requestModel.isFormDataRequest) {
-            var formHeaderTemplate =
-                jj.Template(kTemplateFormHeaderContentType);
-            headers[HttpHeaders.contentTypeHeader] = formHeaderTemplate.render({
-              "boundary": uuid,
-            });
-          }
-          if (headers.isNotEmpty || hasBody) {
-            hasHeaders = true;
-            if (hasBody) {
+          if (hasBody) {
+            if (requestModel.hasFormData) {
+              headers[HttpHeaders.contentTypeHeader] =
+                  kStringFormDataContentType;
+            } else {
              headers[HttpHeaders.contentTypeHeader] =
                  requestModel.requestBodyContentType.header;
            }
+          }
+          if (headers.isNotEmpty) {
+            hasHeaders = true;
            var headersString = kEncoder.convert(headers);
-            headersString = padMultilineString(headersString, kHeadersPadding);
+            headersString = refactorHeaderString(headersString);
            var templateHeaders = jj.Template(kTemplateHeaders);
            result += templateHeaders.render({"headers": headersString});
          }
        }
-        if (requestModel.isFormDataRequest) {
-          var formDataBodyData = jj.Template(kStringFormDataBody);
-          result += formDataBodyData.render(
-            {
-              "fields_list": json.encode(requestModel.formDataMapList),
-              "boundary": uuid,
-            },
-          );
-        }
+
        var templateRequest = jj.Template(kTemplateRequest);
        result += templateRequest.render({
-          "method": method.name.toLowerCase(),
+          "method": requestModel.method.name.toLowerCase(),
        });

        if (hasQuery) {
          result += kStringRequestParams;
        }

-        if (hasBody || requestModel.isFormDataRequest) {
+        if (hasBody) {
          result += kStringRequestBody;
        }

-        if (hasJsonBody || requestModel.isFormDataRequest) {
+        if (hasJsonBody) {
          result += kStringRequestJson;
        }

-        if (hasHeaders || requestModel.isFormDataRequest) {
+        if (hasHeaders) {
          result += kStringRequestHeaders;
        }

--- a/lib/consts.dart
+++ b/lib/consts.dart
@ -8,6 +8,7 @@ import 'package:davi/davi.dart';
 const kDiscordUrl = "https://bit.ly/heyfoss";
 const kGitUrl = "https://github.com/foss42/apidash";
 const kIssueUrl = "$kGitUrl/issues";
+const kDefaultUri = "api.apidash.dev";

 final kIsMacOS = !kIsWeb && Platform.isMacOS;
 final kIsWindows = !kIsWeb && Platform.isWindows;
@ -283,6 +284,8 @@ enum CodegenLanguage {
 const JsonEncoder kEncoder = JsonEncoder.withIndent('  ');
 const LineSplitter kSplitter = LineSplitter();

+const kHeaderContentType = "Content-Type";
+
 const kTypeApplication = 'application';
 // application
 const kSubTypeJson = 'json';
@ -313,12 +316,15 @@ const kSubTypeSvg = 'svg+xml';
 const kTypeAudio = 'audio';
 const kTypeVideo = 'video';

+const kTypeMultipart = "multipart";
+const kSubTypeFormData = "form-data";
+
 const kSubTypeDefaultViewOptions = 'all';

 enum ContentType {
  json("$kTypeApplication/$kSubTypeJson"),
  text("$kTypeText/$kSubTypePlain"),
-  formdata("multipart/form-data");
+  formdata("$kTypeMultipart/$kSubTypeFormData");

  const ContentType(this.header);
  final String header;
@ -500,8 +506,7 @@ const kRaiseIssue =
 const kCsvError =
    "There seems to be an issue rendering this CSV. Please raise an issue in API Dash GitHub repo so that we can resolve it.";

-const kHintTextUrlCard =
-    "Enter API endpoint like api.apidash.dev/country/codes";
+const kHintTextUrlCard = "Enter API endpoint like https://$kDefaultUri/";
 const kLabelPlusNew = "+ New";
 const kLabelSend = "Send";
 const kLabelSending = "Sending..";
--- a/lib/models/request_model.dart
+++ b/lib/models/request_model.dart
@ -1,4 +1,5 @@
 import 'dart:io';
+import 'dart:convert';
 import 'package:flutter/foundation.dart';
 import '../utils/utils.dart'
    show
@ -62,9 +63,27 @@ class RequestModel {
  Map<String, String> get headersMap => rowsToMap(requestHeaders) ?? {};
  Map<String, String> get paramsMap => rowsToMap(requestParams) ?? {};

+  bool get hasFormDataContentType =>
+      requestBodyContentType == ContentType.formdata;
+  bool get hasJsonContentType => requestBodyContentType == ContentType.json;
+  bool get hasTextContentType => requestBodyContentType == ContentType.text;
+  int get contentLength => utf8.encode(requestBody ?? "").length;
+  bool get hasJsonData =>
+      kMethodsWithBody.contains(method) &&
+      hasJsonContentType &&
+      contentLength > 0;
+  bool get hasTextData =>
+      kMethodsWithBody.contains(method) &&
+      hasTextContentType &&
+      contentLength > 0;
+  bool get hasFormData =>
+      kMethodsWithBody.contains(method) &&
+      hasFormDataContentType &&
+      (requestFormDataList ?? <FormDataModel>[]).isNotEmpty;
+  List<FormDataModel> get formDataList =>
+      requestFormDataList ?? <FormDataModel>[];
  List<Map<String, dynamic>> get formDataMapList =>
      rowsToFormDataMapList(requestFormDataList) ?? [];
-  bool get isFormDataRequest => requestBodyContentType == ContentType.formdata;

  bool get hasContentTypeHeader => enabledHeadersMap.keys
      .any((k) => k.toLowerCase() == HttpHeaders.contentTypeHeader);
--- a/lib/providers/collection_providers.dart
+++ b/lib/providers/collection_providers.dart
@ -3,7 +3,7 @@ import 'settings_providers.dart';
 import 'ui_providers.dart';
 import '../models/models.dart';
 import '../services/services.dart' show hiveHandler, HiveHandler, request;
-import '../utils/utils.dart' show uuid, collectionToHAR;
+import '../utils/utils.dart' show getNewUuid, collectionToHAR;
 import '../consts.dart';
 import 'package:http/http.dart' as http;

@ -54,7 +54,7 @@ class CollectionStateNotifier
  }

  void add() {
-    final id = uuid.v1();
+    final id = getNewUuid();
    final newRequestModel = RequestModel(
      id: id,
    );
@ -97,7 +97,7 @@ class CollectionStateNotifier
  }

  void duplicate(String id) {
-    final newId = uuid.v1();
+    final newId = getNewUuid();

    var itemIds = ref.read(requestSequenceProvider);
    int idx = itemIds.indexOf(id);
@ -173,8 +173,6 @@ class CollectionStateNotifier
    (http.Response?, Duration?, String?)? responseRec = await request(
      requestModel,
      defaultUriScheme: defaultUriScheme,
-      isMultiPartRequest:
-          requestModel.requestBodyContentType == ContentType.formdata,
    );
    late final RequestModel newRequestModel;
    if (responseRec.$1 == null) {
@ -215,7 +213,7 @@ class CollectionStateNotifier
  bool loadData() {
    var ids = hiveHandler.getIds();
    if (ids == null || ids.length == 0) {
-      String newId = uuid.v1();
+      String newId = getNewUuid();
      state = {
        newId: RequestModel(
          id: newId,
--- a/lib/screens/settings_page.dart
+++ b/lib/screens/settings_page.dart
@ -65,7 +65,7 @@ class SettingsPage extends ConsumerWidget {
                hoverColor: kColorTransparent,
                title: const Text('Default URI Scheme'),
                subtitle: Text(
-                    'api.apidash.dev → ${settings.defaultUriScheme}://api.apidash.dev'),
+                    '$kDefaultUri → ${settings.defaultUriScheme}://$kDefaultUri'),
                trailing: DropdownMenu(
                    onSelected: (value) {
                      ref
--- a/lib/services/http_service.dart
+++ b/lib/services/http_service.dart
@ -9,7 +9,6 @@ import 'package:apidash/consts.dart';
 Future<(http.Response?, Duration?, String?)> request(
  RequestModel requestModel, {
  String defaultUriScheme = kDefaultUriScheme,
-  bool isMultiPartRequest = false,
 }) async {
  (Uri?, String?) uriRec = getValidRequestUri(
    requestModel.url,
@ -22,44 +21,48 @@ Future<(http.Response?, Duration?, String?)> request(
    http.Response response;
    String? body;
    try {
-      var requestBody = requestModel.requestBody;
-      if (kMethodsWithBody.contains(requestModel.method) &&
-          requestBody != null) {
-        var contentLength = utf8.encode(requestBody).length;
-        if (contentLength > 0) {
-          body = requestBody;
-          headers[HttpHeaders.contentLengthHeader] = contentLength.toString();
-          if (!requestModel.hasContentTypeHeader) {
-            headers[HttpHeaders.contentTypeHeader] =
-                requestModel.requestBodyContentType.header;
-          }
-        }
-      }
      Stopwatch stopwatch = Stopwatch()..start();
-      if (isMultiPartRequest) {
-        var multiPartRequest = http.MultipartRequest(
-          requestModel.method.name.toUpperCase(),
-          requestUrl,
-        );
-        multiPartRequest.headers.addAll(headers);
-        for (FormDataModel formData
-            in (requestModel.requestFormDataList ?? [])) {
-          if (formData.type == FormDataType.text) {
-            multiPartRequest.fields.addAll({formData.name: formData.value});
-          } else {
-            multiPartRequest.files.add(
-              await http.MultipartFile.fromPath(
-                formData.name,
-                formData.value,
-              ),
-            );
+      var isMultiPartRequest =
+          requestModel.requestBodyContentType == ContentType.formdata;
+      if (kMethodsWithBody.contains(requestModel.method)) {
+        var requestBody = requestModel.requestBody;
+        if (requestBody != null && !isMultiPartRequest) {
+          var contentLength = utf8.encode(requestBody).length;
+          if (contentLength > 0) {
+            body = requestBody;
+            headers[HttpHeaders.contentLengthHeader] = contentLength.toString();
+            if (!requestModel.hasContentTypeHeader) {
+              headers[HttpHeaders.contentTypeHeader] =
+                  requestModel.requestBodyContentType.header;
+            }
          }
        }
-        http.StreamedResponse multiPartResponse = await multiPartRequest.send();
-        stopwatch.stop();
-        http.Response convertedMultiPartResponse =
-            await convertStreamedResponse(multiPartResponse);
-        return (convertedMultiPartResponse, stopwatch.elapsed, null);
+        if (isMultiPartRequest) {
+          var multiPartRequest = http.MultipartRequest(
+            requestModel.method.name.toUpperCase(),
+            requestUrl,
+          );
+          multiPartRequest.headers.addAll(headers);
+          for (var formData
+              in (requestModel.requestFormDataList ?? <FormDataModel>[])) {
+            if (formData.type == FormDataType.text) {
+              multiPartRequest.fields.addAll({formData.name: formData.value});
+            } else {
+              multiPartRequest.files.add(
+                await http.MultipartFile.fromPath(
+                  formData.name,
+                  formData.value,
+                ),
+              );
+            }
+          }
+          http.StreamedResponse multiPartResponse =
+              await multiPartRequest.send();
+          stopwatch.stop();
+          http.Response convertedMultiPartResponse =
+              await convertStreamedResponse(multiPartResponse);
+          return (convertedMultiPartResponse, stopwatch.elapsed, null);
+        }
      }
      switch (requestModel.method) {
        case HTTPVerb.get:
--- a/lib/utils/file_utils.dart
+++ b/lib/utils/file_utils.dart
@ -48,8 +48,13 @@ String getShortPath(String path) {
  return path;
 }

+String getFilenameFromPath(String path) {
+  var f = p.split(path);
+  return f.last;
+}
+
 String getTempFileName() {
-  return uuid.v1();
+  return getNewUuid();
 }

 Future<FilePickerResult?> pickFile() async {
--- a/lib/utils/har_utils.dart
+++ b/lib/utils/har_utils.dart
@ -1,6 +1,10 @@
+// http://www.softwareishard.com/blog/har-12-spec/
+// https://github.com/ahmadnassri/har-spec/blob/master/versions/1.2.md
+
 import 'dart:convert';
 import 'package:apidash/consts.dart';
-import 'package:apidash/utils/utils.dart' show getValidRequestUri;
+import 'package:apidash/utils/utils.dart'
+    show getValidRequestUri, getNewUuid, getFilenameFromPath;
 import 'package:apidash/models/models.dart' show RequestModel;
 import 'package:package_info_plus/package_info_plus.dart';

@ -75,6 +79,7 @@ Map<String, dynamic> requestModelToHARJsonRequest(
  defaultUriScheme = kDefaultUriScheme,
  bool exportMode = false,
  bool useEnabled = false,
+  String? boundary,
 }) {
  Map<String, dynamic> json = {};
  bool hasBody = false;
@ -110,21 +115,37 @@ Map<String, dynamic> requestModelToHARJsonRequest(
      }
    }

-    var method = requestModel.method;
-    var requestBody = requestModel.requestBody;
-    if (kMethodsWithBody.contains(method) &&
-        requestBody != null &&
-        !requestModel.isFormDataRequest) {
-      var contentLength = utf8.encode(requestBody).length;
-      if (contentLength > 0) {
-        hasBody = true;
-        json["postData"] = {};
-        json["postData"]["mimeType"] =
-            requestModel.requestBodyContentType.header;
-        json["postData"]["text"] = requestBody;
-        if (exportMode) {
-          json["postData"]["comment"] = "";
+    if (requestModel.hasJsonData || requestModel.hasTextData) {
+      hasBody = true;
+      json["postData"] = {};
+      json["postData"]["mimeType"] = requestModel.requestBodyContentType.header;
+      json["postData"]["text"] = requestModel.requestBody;
+      if (exportMode) {
+        json["postData"]["comment"] = "";
+      }
+    }
+
+    if (requestModel.hasFormData) {
+      boundary = boundary ?? getNewUuid();
+      hasBody = true;
+      json["postData"] = {};
+      json["postData"]["mimeType"] =
+          "${requestModel.requestBodyContentType.header}; boundary=$boundary";
+      json["postData"]["params"] = [];
+      for (var item in requestModel.formDataList) {
+        Map<String, String> d = exportMode ? {"comment": ""} : {};
+        if (item.type == FormDataType.text) {
+          d["name"] = item.name;
+          d["value"] = item.value;
        }
+        if (item.type == FormDataType.file) {
+          d["name"] = item.name;
+          d["fileName"] = getFilenameFromPath(item.value);
+        }
+        json["postData"]["params"].add(d);
+      }
+      if (exportMode) {
+        json["postData"]["comment"] = "";
      }
    }

@ -137,8 +158,8 @@ Map<String, dynamic> requestModelToHARJsonRequest(
      if (headers.isNotEmpty || hasBody) {
        if (hasBody && !requestModel.hasContentTypeHeader) {
          var m = {
-            "name": "Content-Type",
-            "value": requestModel.requestBodyContentType.header
+            "name": kHeaderContentType,
+            "value": json["postData"]["mimeType"]
          };
          if (exportMode) {
            m["comment"] = "";
@ -154,14 +175,12 @@ Map<String, dynamic> requestModelToHARJsonRequest(
        }
      }
    }
-    if (requestModel.isFormDataRequest) {
-      json["formData"] = requestModel.formDataMapList;
-    }
    if (exportMode) {
      json["comment"] = "";
      json["cookies"] = [];
      json["headersSize"] = -1;
-      json["bodySize"] = hasBody ? utf8.encode(requestBody!).length : 0;
+      json["bodySize"] =
+          hasBody ? utf8.encode(json["postData"]["text"] ?? "").length : 0;
    }
  }
  return json;
--- a/test/codegen/curl_codegen_test.dart
+++ b/test/codegen/curl_codegen_test.dart
@ -1,64 +1,74 @@
-import 'package:apidash/codegen/others/curl.dart';
-import '../request_models.dart';
+import 'package:apidash/codegen/codegen.dart';
+import 'package:apidash/consts.dart';
 import 'package:test/test.dart';
+import '../request_models.dart';

 void main() {
-  final curlCodeGen = cURLCodeGen();
+  final codeGen = Codegen();

  group('GET Request', () {
    test('GET 1', () {
      const expectedCode = r"""curl --url 'https://api.apidash.dev'""";
-      expect(curlCodeGen.getCode(requestModelGet1, "https"), expectedCode);
+      expect(codeGen.getCode(CodegenLanguage.curl, requestModelGet1, "https"),
+          expectedCode);
    });

    test('GET 2', () {
      const expectedCode =
          r"""curl --url 'https://api.apidash.dev/country/data?code=US'""";
-      expect(curlCodeGen.getCode(requestModelGet2, "https"), expectedCode);
+      expect(codeGen.getCode(CodegenLanguage.curl, requestModelGet2, "https"),
+          expectedCode);
    });

    test('GET 3', () {
      const expectedCode =
          r"""curl --url 'https://api.apidash.dev/country/data?code=IND'""";
-      expect(curlCodeGen.getCode(requestModelGet3, "https"), expectedCode);
+      expect(codeGen.getCode(CodegenLanguage.curl, requestModelGet3, "https"),
+          expectedCode);
    });

    test('GET 4', () {
      const expectedCode =
          r"""curl --url 'https://api.apidash.dev/humanize/social?num=8700000&digits=3&system=SS&add_space=true&trailing_zeros=true'""";
-      expect(curlCodeGen.getCode(requestModelGet4, "https"), expectedCode);
+      expect(codeGen.getCode(CodegenLanguage.curl, requestModelGet4, "https"),
+          expectedCode);
    });

    test('GET 5', () {
      const expectedCode =
          r"""curl --url 'https://api.github.com/repos/foss42/apidash' \
  --header 'User-Agent: Test Agent'""";
-      expect(curlCodeGen.getCode(requestModelGet5, "https"), expectedCode);
+      expect(codeGen.getCode(CodegenLanguage.curl, requestModelGet5, "https"),
+          expectedCode);
    });

    test('GET 6', () {
      const expectedCode =
          r"""curl --url 'https://api.github.com/repos/foss42/apidash?raw=true' \
  --header 'User-Agent: Test Agent'""";
-      expect(curlCodeGen.getCode(requestModelGet6, "https"), expectedCode);
+      expect(codeGen.getCode(CodegenLanguage.curl, requestModelGet6, "https"),
+          expectedCode);
    });

    test('GET 7', () {
      const expectedCode = r"""curl --url 'https://api.apidash.dev'""";
-      expect(curlCodeGen.getCode(requestModelGet7, "https"), expectedCode);
+      expect(codeGen.getCode(CodegenLanguage.curl, requestModelGet7, "https"),
+          expectedCode);
    });

    test('GET 8', () {
      const expectedCode =
          r"""curl --url 'https://api.github.com/repos/foss42/apidash?raw=true' \
  --header 'User-Agent: Test Agent'""";
-      expect(curlCodeGen.getCode(requestModelGet8, "https"), expectedCode);
+      expect(codeGen.getCode(CodegenLanguage.curl, requestModelGet8, "https"),
+          expectedCode);
    });

    test('GET 9', () {
      const expectedCode =
          r"""curl --url 'https://api.apidash.dev/humanize/social?num=8700000&add_space=true'""";
-      expect(curlCodeGen.getCode(requestModelGet9, "https"), expectedCode);
+      expect(codeGen.getCode(CodegenLanguage.curl, requestModelGet9, "https"),
+          expectedCode);
    });

    test('GET 10', () {
@ -66,7 +76,8 @@ void main() {
          r"""curl --url 'https://api.apidash.dev/humanize/social' \
  --header 'User-Agent: Test Agent'""";
      expect(
-          curlCodeGen.getCode(
+          codeGen.getCode(
+            CodegenLanguage.curl,
            requestModelGet10,
            "https",
          ),
@ -77,103 +88,181 @@ void main() {
      const expectedCode =
          r"""curl --url 'https://api.apidash.dev/humanize/social?num=8700000&digits=3' \
  --header 'User-Agent: Test Agent'""";
-      expect(curlCodeGen.getCode(requestModelGet11, "https"), expectedCode);
+      expect(codeGen.getCode(CodegenLanguage.curl, requestModelGet11, "https"),
+          expectedCode);
    });

    test('GET 12', () {
      const expectedCode =
          r"""curl --url 'https://api.apidash.dev/humanize/social'""";
-      expect(curlCodeGen.getCode(requestModelGet12, "https"), expectedCode);
+      expect(codeGen.getCode(CodegenLanguage.curl, requestModelGet12, "https"),
+          expectedCode);
    });
  });

  group('HEAD Request', () {
    test('HEAD 1', () {
      const expectedCode = r"""curl --head --url 'https://api.apidash.dev'""";
-      expect(curlCodeGen.getCode(requestModelHead1, "https"), expectedCode);
+      expect(codeGen.getCode(CodegenLanguage.curl, requestModelHead1, "https"),
+          expectedCode);
    });

    test('HEAD 2', () {
      const expectedCode = r"""curl --head --url 'http://api.apidash.dev'""";
-      expect(curlCodeGen.getCode(requestModelHead2, "http"), expectedCode);
+      expect(codeGen.getCode(CodegenLanguage.curl, requestModelHead2, "http"),
+          expectedCode);
    });
  });

  group('POST Request', () {
    test('POST 1', () {
      const expectedCode = r"""curl --request POST \
- --url 'https://api.apidash.dev/case/lower' \
+  --url 'https://api.apidash.dev/case/lower' \
  --header 'Content-Type: text/plain' \
  --data '{
 "text": "I LOVE Flutter"
 }'""";
-      expect(curlCodeGen.getCode(requestModelPost1, "https"), expectedCode);
+      expect(codeGen.getCode(CodegenLanguage.curl, requestModelPost1, "https"),
+          expectedCode);
    });

    test('POST 2', () {
      const expectedCode = r"""curl --request POST \
- --url 'https://api.apidash.dev/case/lower' \
+  --url 'https://api.apidash.dev/case/lower' \
  --header 'Content-Type: application/json' \
  --data '{
-"text": "I LOVE Flutter"
+"text": "I LOVE Flutter",
+"flag": null,
+"male": true,
+"female": false,
+"no": 1.2,
+"arr": ["null", "true", "false", null]
 }'""";
-      expect(curlCodeGen.getCode(requestModelPost2, "https"), expectedCode);
+      expect(codeGen.getCode(CodegenLanguage.curl, requestModelPost2, "https"),
+          expectedCode);
    });

    test('POST 3', () {
      const expectedCode = r"""curl --request POST \
- --url 'https://api.apidash.dev/case/lower' \
+  --url 'https://api.apidash.dev/case/lower' \
  --header 'Content-Type: application/json' \
  --header 'User-Agent: Test Agent' \
  --data '{
 "text": "I LOVE Flutter"
 }'""";
-      expect(curlCodeGen.getCode(requestModelPost3, "https"), expectedCode);
+      expect(codeGen.getCode(CodegenLanguage.curl, requestModelPost3, "https"),
+          expectedCode);
+    });
+
+    test('POST 4', () {
+      const expectedCode = r"""curl --request POST \
+  --url 'https://api.apidash.dev/io/form' \
+  --form 'text=API' \
+  --form 'sep=|' \
+  --form 'times=3'""";
+      expect(codeGen.getCode(CodegenLanguage.curl, requestModelPost4, "https"),
+          expectedCode);
+    });
+
+    test('POST 5', () {
+      const expectedCode = r"""curl --request POST \
+  --url 'https://api.apidash.dev/io/form' \
+  --header 'User-Agent: Test Agent' \
+  --form 'text=API' \
+  --form 'sep=|' \
+  --form 'times=3'""";
+      expect(codeGen.getCode(CodegenLanguage.curl, requestModelPost5, "https"),
+          expectedCode);
+    });
+
+    test('POST 6', () {
+      const expectedCode = r"""curl --request POST \
+  --url 'https://api.apidash.dev/io/img' \
+  --form 'token=xyz' \
+  --form 'imfile=@/Documents/up/1.png'""";
+      expect(codeGen.getCode(CodegenLanguage.curl, requestModelPost6, "https"),
+          expectedCode);
+    });
+
+    test('POST 7', () {
+      const expectedCode = r"""curl --request POST \
+  --url 'https://api.apidash.dev/io/img' \
+  --form 'token=xyz' \
+  --form 'imfile=@/Documents/up/1.png'""";
+      expect(codeGen.getCode(CodegenLanguage.curl, requestModelPost7, "https"),
+          expectedCode);
+    });
+
+    test('POST 8', () {
+      const expectedCode = r"""curl --request POST \
+  --url 'https://api.apidash.dev/io/form?size=2&len=3' \
+  --form 'text=API' \
+  --form 'sep=|' \
+  --form 'times=3'""";
+      expect(codeGen.getCode(CodegenLanguage.curl, requestModelPost8, "https"),
+          expectedCode);
+    });
+
+    test('POST 9', () {
+      const expectedCode = r"""curl --request POST \
+  --url 'https://api.apidash.dev/io/img?size=2&len=3' \
+  --header 'User-Agent: Test Agent' \
+  --header 'Keep-Alive: true' \
+  --form 'token=xyz' \
+  --form 'imfile=@/Documents/up/1.png'""";
+      expect(codeGen.getCode(CodegenLanguage.curl, requestModelPost9, "https"),
+          expectedCode);
    });
  });

  group('PUT Request', () {
    test('PUT 1', () {
      const expectedCode = r"""curl --request PUT \
- --url 'https://reqres.in/api/users/2' \
+  --url 'https://reqres.in/api/users/2' \
  --header 'Content-Type: application/json' \
  --data '{
 "name": "morpheus",
 "job": "zion resident"
 }'""";
-      expect(curlCodeGen.getCode(requestModelPut1, "https"), expectedCode);
+      expect(codeGen.getCode(CodegenLanguage.curl, requestModelPut1, "https"),
+          expectedCode);
    });
  });

  group('PATCH Request', () {
    test('PATCH 1', () {
      const expectedCode = r"""curl --request PATCH \
- --url 'https://reqres.in/api/users/2' \
+  --url 'https://reqres.in/api/users/2' \
  --header 'Content-Type: application/json' \
  --data '{
 "name": "marfeus",
 "job": "accountant"
 }'""";
-      expect(curlCodeGen.getCode(requestModelPatch1, "https"), expectedCode);
+      expect(codeGen.getCode(CodegenLanguage.curl, requestModelPatch1, "https"),
+          expectedCode);
    });
  });

  group('DELETE Request', () {
    test('DELETE 1', () {
      const expectedCode = r"""curl --request DELETE \
- --url 'https://reqres.in/api/users/2'""";
-      expect(curlCodeGen.getCode(requestModelDelete1, "https"), expectedCode);
+  --url 'https://reqres.in/api/users/2'""";
+      expect(
+          codeGen.getCode(CodegenLanguage.curl, requestModelDelete1, "https"),
+          expectedCode);
    });

    test('DELETE 2', () {
      const expectedCode = r"""curl --request DELETE \
- --url 'https://reqres.in/api/users/2' \
+  --url 'https://reqres.in/api/users/2' \
  --header 'Content-Type: application/json' \
  --data '{
 "name": "marfeus",
 "job": "accountant"
 }'""";
-      expect(curlCodeGen.getCode(requestModelDelete2, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.curl, requestModelDelete2, "https"),
+          expectedCode);
    });
  });
 }
--- a/test/codegen/dart_dio_codegen_test.dart
+++ b/test/codegen/dart_dio_codegen_test.dart
@ -1,10 +1,10 @@
-import 'package:apidash/codegen/dart/dio.dart';
+import 'package:apidash/codegen/codegen.dart';
+import 'package:apidash/consts.dart';
 import 'package:test/test.dart';
-
 import '../request_models.dart';

 void main() {
-  final dartDioCodeGen = DartDioCodeGen();
+  final codeGen = Codegen();

  group('GET Request', () {
    test('GET 1', () {
@ -25,7 +25,9 @@ void main() async {
  }
 }
 """;
-      expect(dartDioCodeGen.getCode(requestModelGet1, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.dartDio, requestModelGet1, "https"),
+          expectedCode);
    });

    test('GET 2', () {
@ -50,7 +52,9 @@ void main() async {
  }
 }
 """;
-      expect(dartDioCodeGen.getCode(requestModelGet2, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.dartDio, requestModelGet2, "https"),
+          expectedCode);
    });

    test('GET 3', () {
@ -75,7 +79,9 @@ void main() async {
  }
 }
 """;
-      expect(dartDioCodeGen.getCode(requestModelGet3, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.dartDio, requestModelGet3, "https"),
+          expectedCode);
    });

    test('GET 4', () {
@ -106,7 +112,9 @@ void main() async {
  }
 }
 """;
-      expect(dartDioCodeGen.getCode(requestModelGet4, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.dartDio, requestModelGet4, "https"),
+          expectedCode);
    });

    test('GET 5', () {
@ -131,7 +139,9 @@ void main() async {
  }
 }
 """;
-      expect(dartDioCodeGen.getCode(requestModelGet5, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.dartDio, requestModelGet5, "https"),
+          expectedCode);
    });

    test('GET 6', () {
@ -158,7 +168,9 @@ void main() async {
  }
 }
 """;
-      expect(dartDioCodeGen.getCode(requestModelGet6, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.dartDio, requestModelGet6, "https"),
+          expectedCode);
    });

    test('GET 7', () {
@ -179,7 +191,9 @@ void main() async {
  }
 }
 """;
-      expect(dartDioCodeGen.getCode(requestModelGet7, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.dartDio, requestModelGet7, "https"),
+          expectedCode);
    });

    test('GET 8', () {
@ -206,7 +220,9 @@ void main() async {
  }
 }
 """;
-      expect(dartDioCodeGen.getCode(requestModelGet8, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.dartDio, requestModelGet8, "https"),
+          expectedCode);
    });

    test('GET 9', () {
@ -234,7 +250,9 @@ void main() async {
  }
 }
 """;
-      expect(dartDioCodeGen.getCode(requestModelGet9, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.dartDio, requestModelGet9, "https"),
+          expectedCode);
    });

    test('GET 10', () {
@ -260,7 +278,8 @@ void main() async {
 }
 """;
      expect(
-          dartDioCodeGen.getCode(
+          codeGen.getCode(
+            CodegenLanguage.dartDio,
            requestModelGet10,
            "https",
          ),
@ -294,7 +313,9 @@ void main() async {
  }
 }
 """;
-      expect(dartDioCodeGen.getCode(requestModelGet11, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.dartDio, requestModelGet11, "https"),
+          expectedCode);
    });

    test('GET 12', () {
@ -315,7 +336,9 @@ void main() async {
  }
 }
 """;
-      expect(dartDioCodeGen.getCode(requestModelGet12, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.dartDio, requestModelGet12, "https"),
+          expectedCode);
    });
  });

@ -338,7 +361,9 @@ void main() async {
  }
 }
 """;
-      expect(dartDioCodeGen.getCode(requestModelHead1, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.dartDio, requestModelHead1, "https"),
+          expectedCode);
    });

    test('HEAD 2', () {
@ -359,7 +384,9 @@ void main() async {
  }
 }
 """;
-      expect(dartDioCodeGen.getCode(requestModelHead2, "http"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.dartDio, requestModelHead2, "http"),
+          expectedCode);
    });
  });

@ -388,7 +415,9 @@ void main() async {
  }
 }
 """;
-      expect(dartDioCodeGen.getCode(requestModelPost1, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.dartDio, requestModelPost1, "https"),
+          expectedCode);
    });

    test('POST 2', () {
@ -398,7 +427,12 @@ import 'dart:convert' as convert;
 void main() async {
  try {
    final data = convert.json.decode(r'''{
-"text": "I LOVE Flutter"
+"text": "I LOVE Flutter",
+"flag": null,
+"male": true,
+"female": false,
+"no": 1.2,
+"arr": ["null", "true", "false", null]
 }''');
    final response = await dio.Dio.post(
      'https://api.apidash.dev/case/lower',
@ -416,7 +450,9 @@ void main() async {
  }
 }
 """;
-      expect(dartDioCodeGen.getCode(requestModelPost2, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.dartDio, requestModelPost2, "https"),
+          expectedCode);
    });

    test('POST 3', () {
@ -446,7 +482,9 @@ void main() async {
  }
 }
 """;
-      expect(dartDioCodeGen.getCode(requestModelPost3, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.dartDio, requestModelPost3, "https"),
+          expectedCode);
    });
  });

@ -477,7 +515,9 @@ void main() async {
  }
 }
 """;
-      expect(dartDioCodeGen.getCode(requestModelPut1, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.dartDio, requestModelPut1, "https"),
+          expectedCode);
    });
  });

@ -508,7 +548,9 @@ void main() async {
  }
 }
 """;
-      expect(dartDioCodeGen.getCode(requestModelPatch1, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.dartDio, requestModelPatch1, "https"),
+          expectedCode);
    });
  });

@ -532,7 +574,9 @@ void main() async {
 }
 """;
      expect(
-          dartDioCodeGen.getCode(requestModelDelete1, "https"), expectedCode);
+          codeGen.getCode(
+              CodegenLanguage.dartDio, requestModelDelete1, "https"),
+          expectedCode);
    });

    test('DELETE 2', () {
@ -562,7 +606,9 @@ void main() async {
 }
 """;
      expect(
-          dartDioCodeGen.getCode(requestModelDelete2, "https"), expectedCode);
+          codeGen.getCode(
+              CodegenLanguage.dartDio, requestModelDelete2, "https"),
+          expectedCode);
    });
  });
 }
--- a/test/codegen/dart_http_codegen_test.dart
+++ b/test/codegen/dart_http_codegen_test.dart
@ -1,10 +1,10 @@
-import 'package:apidash/codegen/dart/http.dart';
+import 'package:apidash/codegen/codegen.dart';
+import 'package:apidash/consts.dart';
 import 'package:test/test.dart';
-
 import '../request_models.dart';

 void main() {
-  final dartHttpCodeGen = DartHttpCodeGen();
+  final codeGen = Codegen();

  group('GET Request', () {
    test('GET 1', () {
@ -25,7 +25,9 @@ void main() async {
  }
 }
 """;
-      expect(dartHttpCodeGen.getCode(requestModelGet1, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.dartHttp, requestModelGet1, "https"),
+          expectedCode);
    });

    test('GET 2', () {
@ -50,7 +52,9 @@ void main() async {
 }
 """;

-      expect(dartHttpCodeGen.getCode(requestModelGet2, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.dartHttp, requestModelGet2, "https"),
+          expectedCode);
    });

    test('GET 3', () {
@ -76,7 +80,9 @@ void main() async {
  }
 }
 """;
-      expect(dartHttpCodeGen.getCode(requestModelGet3, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.dartHttp, requestModelGet3, "https"),
+          expectedCode);
    });

    test('GET 4', () {
@ -106,7 +112,9 @@ void main() async {
  }
 }
 """;
-      expect(dartHttpCodeGen.getCode(requestModelGet4, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.dartHttp, requestModelGet4, "https"),
+          expectedCode);
    });

    test('GET 5', () {
@ -132,7 +140,9 @@ void main() async {
  }
 }
 """;
-      expect(dartHttpCodeGen.getCode(requestModelGet5, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.dartHttp, requestModelGet5, "https"),
+          expectedCode);
    });

    test('GET 6', () {
@ -161,7 +171,9 @@ void main() async {
  }
 }
 """;
-      expect(dartHttpCodeGen.getCode(requestModelGet6, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.dartHttp, requestModelGet6, "https"),
+          expectedCode);
    });

    test('GET 7', () {
@ -182,7 +194,9 @@ void main() async {
  }
 }
 """;
-      expect(dartHttpCodeGen.getCode(requestModelGet7, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.dartHttp, requestModelGet7, "https"),
+          expectedCode);
    });

    test('GET 8', () {
@ -211,7 +225,9 @@ void main() async {
  }
 }
 """;
-      expect(dartHttpCodeGen.getCode(requestModelGet8, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.dartHttp, requestModelGet8, "https"),
+          expectedCode);
    });

    test('GET 9', () {
@ -238,7 +254,9 @@ void main() async {
  }
 }
 """;
-      expect(dartHttpCodeGen.getCode(requestModelGet9, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.dartHttp, requestModelGet9, "https"),
+          expectedCode);
    });

    test('GET 10', () {
@ -265,7 +283,8 @@ void main() async {
 }
 """;
      expect(
-          dartHttpCodeGen.getCode(
+          codeGen.getCode(
+            CodegenLanguage.dartHttp,
            requestModelGet10,
            "https",
          ),
@ -301,7 +320,9 @@ void main() async {
  }
 }
 """;
-      expect(dartHttpCodeGen.getCode(requestModelGet11, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.dartHttp, requestModelGet11, "https"),
+          expectedCode);
    });

    test('GET 12', () {
@ -322,7 +343,9 @@ void main() async {
  }
 }
 """;
-      expect(dartHttpCodeGen.getCode(requestModelGet12, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.dartHttp, requestModelGet12, "https"),
+          expectedCode);
    });
  });

@ -345,7 +368,9 @@ void main() async {
  }
 }
 """;
-      expect(dartHttpCodeGen.getCode(requestModelHead1, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.dartHttp, requestModelHead1, "https"),
+          expectedCode);
    });

    test('HEAD 2', () {
@ -366,7 +391,9 @@ void main() async {
  }
 }
 """;
-      expect(dartHttpCodeGen.getCode(requestModelHead2, "http"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.dartHttp, requestModelHead2, "http"),
+          expectedCode);
    });
  });

@ -399,7 +426,9 @@ void main() async {
  }
 }
 """;
-      expect(dartHttpCodeGen.getCode(requestModelPost1, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.dartHttp, requestModelPost1, "https"),
+          expectedCode);
    });

    test('POST 2', () {
@ -409,7 +438,12 @@ void main() async {
  var uri = Uri.parse('https://api.apidash.dev/case/lower');

  String body = r'''{
-"text": "I LOVE Flutter"
+"text": "I LOVE Flutter",
+"flag": null,
+"male": true,
+"female": false,
+"no": 1.2,
+"arr": ["null", "true", "false", null]
 }''';

  var headers = {'content-type': 'application/json'};
@ -430,7 +464,9 @@ void main() async {
  }
 }
 """;
-      expect(dartHttpCodeGen.getCode(requestModelPost2, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.dartHttp, requestModelPost2, "https"),
+          expectedCode);
    });

    test('POST 3', () {
@ -464,7 +500,9 @@ void main() async {
  }
 }
 """;
-      expect(dartHttpCodeGen.getCode(requestModelPost3, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.dartHttp, requestModelPost3, "https"),
+          expectedCode);
    });
  });

@ -498,7 +536,9 @@ void main() async {
  }
 }
 """;
-      expect(dartHttpCodeGen.getCode(requestModelPut1, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.dartHttp, requestModelPut1, "https"),
+          expectedCode);
    });
  });

@ -533,7 +573,9 @@ void main() async {
 }
 """;
      expect(
-          dartHttpCodeGen.getCode(requestModelPatch1, "https"), expectedCode);
+          codeGen.getCode(
+              CodegenLanguage.dartHttp, requestModelPatch1, "https"),
+          expectedCode);
    });
  });

@ -557,7 +599,9 @@ void main() async {
 }
 """;
      expect(
-          dartHttpCodeGen.getCode(requestModelDelete1, "https"), expectedCode);
+          codeGen.getCode(
+              CodegenLanguage.dartHttp, requestModelDelete1, "https"),
+          expectedCode);
    });

    test('DELETE 2', () {
@ -590,7 +634,9 @@ void main() async {
 }
 """;
      expect(
-          dartHttpCodeGen.getCode(requestModelDelete2, "https"), expectedCode);
+          codeGen.getCode(
+              CodegenLanguage.dartHttp, requestModelDelete2, "https"),
+          expectedCode);
    });
  });
 }
--- a/test/codegen/har_codegen_test.dart
+++ b/test/codegen/har_codegen_test.dart
@ -1,9 +1,10 @@
-import 'package:apidash/codegen/others/har.dart';
-import '../request_models.dart';
+import 'package:apidash/codegen/codegen.dart';
+import 'package:apidash/consts.dart';
 import 'package:test/test.dart';
+import '../request_models.dart';

 void main() {
-  final harCodeGen = HARCodeGen();
+  final codeGen = Codegen();

  group('GET Request', () {
    test('GET 1', () {
@ -14,7 +15,8 @@ void main() {
  "queryString": [],
  "headers": []
 }""";
-      expect(harCodeGen.getCode(requestModelGet1, "https"), expectedCode);
+      expect(codeGen.getCode(CodegenLanguage.har, requestModelGet1, "https"),
+          expectedCode);
    });

    test('GET 2', () {
@ -30,7 +32,8 @@ void main() {
  ],
  "headers": []
 }""";
-      expect(harCodeGen.getCode(requestModelGet2, "https"), expectedCode);
+      expect(codeGen.getCode(CodegenLanguage.har, requestModelGet2, "https"),
+          expectedCode);
    });

    test('GET 3', () {
@ -46,7 +49,8 @@ void main() {
  ],
  "headers": []
 }""";
-      expect(harCodeGen.getCode(requestModelGet3, "https"), expectedCode);
+      expect(codeGen.getCode(CodegenLanguage.har, requestModelGet3, "https"),
+          expectedCode);
    });

    test('GET 4', () {
@ -78,7 +82,8 @@ void main() {
  ],
  "headers": []
 }""";
-      expect(harCodeGen.getCode(requestModelGet4, "https"), expectedCode);
+      expect(codeGen.getCode(CodegenLanguage.har, requestModelGet4, "https"),
+          expectedCode);
    });

    test('GET 5', () {
@ -94,7 +99,8 @@ void main() {
    }
  ]
 }""";
-      expect(harCodeGen.getCode(requestModelGet5, "https"), expectedCode);
+      expect(codeGen.getCode(CodegenLanguage.har, requestModelGet5, "https"),
+          expectedCode);
    });

    test('GET 6', () {
@ -115,7 +121,8 @@ void main() {
    }
  ]
 }""";
-      expect(harCodeGen.getCode(requestModelGet6, "https"), expectedCode);
+      expect(codeGen.getCode(CodegenLanguage.har, requestModelGet6, "https"),
+          expectedCode);
    });

    test('GET 7', () {
@ -126,7 +133,8 @@ void main() {
  "queryString": [],
  "headers": []
 }""";
-      expect(harCodeGen.getCode(requestModelGet7, "https"), expectedCode);
+      expect(codeGen.getCode(CodegenLanguage.har, requestModelGet7, "https"),
+          expectedCode);
    });

    test('GET 8', () {
@ -147,7 +155,8 @@ void main() {
    }
  ]
 }""";
-      expect(harCodeGen.getCode(requestModelGet8, "https"), expectedCode);
+      expect(codeGen.getCode(CodegenLanguage.har, requestModelGet8, "https"),
+          expectedCode);
    });

    test('GET 9', () {
@ -167,7 +176,8 @@ void main() {
  ],
  "headers": []
 }""";
-      expect(harCodeGen.getCode(requestModelGet9, "https"), expectedCode);
+      expect(codeGen.getCode(CodegenLanguage.har, requestModelGet9, "https"),
+          expectedCode);
    });

    test('GET 10', () {
@ -184,7 +194,8 @@ void main() {
  ]
 }""";
      expect(
-          harCodeGen.getCode(
+          codeGen.getCode(
+            CodegenLanguage.har,
            requestModelGet10,
            "https",
          ),
@ -213,7 +224,8 @@ void main() {
    }
  ]
 }""";
-      expect(harCodeGen.getCode(requestModelGet11, "https"), expectedCode);
+      expect(codeGen.getCode(CodegenLanguage.har, requestModelGet11, "https"),
+          expectedCode);
    });

    test('GET 12', () {
@ -224,7 +236,8 @@ void main() {
  "queryString": [],
  "headers": []
 }""";
-      expect(harCodeGen.getCode(requestModelGet12, "https"), expectedCode);
+      expect(codeGen.getCode(CodegenLanguage.har, requestModelGet12, "https"),
+          expectedCode);
    });
  });

@ -237,7 +250,8 @@ void main() {
  "queryString": [],
  "headers": []
 }""";
-      expect(harCodeGen.getCode(requestModelHead1, "https"), expectedCode);
+      expect(codeGen.getCode(CodegenLanguage.har, requestModelHead1, "https"),
+          expectedCode);
    });

    test('HEAD 2', () {
@ -248,7 +262,8 @@ void main() {
  "queryString": [],
  "headers": []
 }""";
-      expect(harCodeGen.getCode(requestModelHead2, "http"), expectedCode);
+      expect(codeGen.getCode(CodegenLanguage.har, requestModelHead2, "http"),
+          expectedCode);
    });
  });

@ -270,7 +285,8 @@ void main() {
    "text": "{\n\"text\": \"I LOVE Flutter\"\n}"
  }
 }""";
-      expect(harCodeGen.getCode(requestModelPost1, "https"), expectedCode);
+      expect(codeGen.getCode(CodegenLanguage.har, requestModelPost1, "https"),
+          expectedCode);
    });

    test('POST 2', () {
@ -287,10 +303,11 @@ void main() {
  ],
  "postData": {
    "mimeType": "application/json",
-    "text": "{\n\"text\": \"I LOVE Flutter\"\n}"
+    "text": "{\n\"text\": \"I LOVE Flutter\",\n\"flag\": null,\n\"male\": true,\n\"female\": false,\n\"no\": 1.2,\n\"arr\": [\"null\", \"true\", \"false\", null]\n}"
  }
 }""";
-      expect(harCodeGen.getCode(requestModelPost2, "https"), expectedCode);
+      expect(codeGen.getCode(CodegenLanguage.har, requestModelPost2, "https"),
+          expectedCode);
    });

    test('POST 3', () {
@ -314,7 +331,242 @@ void main() {
    "text": "{\n\"text\": \"I LOVE Flutter\"\n}"
  }
 }""";
-      expect(harCodeGen.getCode(requestModelPost3, "https"), expectedCode);
+      expect(codeGen.getCode(CodegenLanguage.har, requestModelPost3, "https"),
+          expectedCode);
+    });
+
+    test('POST 4', () {
+      const expectedCode = r"""{
+  "method": "POST",
+  "url": "https://api.apidash.dev/io/form",
+  "httpVersion": "HTTP/1.1",
+  "queryString": [],
+  "headers": [
+    {
+      "name": "Content-Type",
+      "value": "multipart/form-data; boundary=d43e2510-a25e-1f08-b0a5-591aeb704467"
+    }
+  ],
+  "postData": {
+    "mimeType": "multipart/form-data; boundary=d43e2510-a25e-1f08-b0a5-591aeb704467",
+    "params": [
+      {
+        "name": "text",
+        "value": "API"
+      },
+      {
+        "name": "sep",
+        "value": "|"
+      },
+      {
+        "name": "times",
+        "value": "3"
+      }
+    ]
+  }
+}""";
+      expect(
+          codeGen.getCode(CodegenLanguage.har, requestModelPost4, "https",
+              boundary: "d43e2510-a25e-1f08-b0a5-591aeb704467"),
+          expectedCode);
+    });
+
+    test('POST 5', () {
+      const expectedCode = r"""{
+  "method": "POST",
+  "url": "https://api.apidash.dev/io/form",
+  "httpVersion": "HTTP/1.1",
+  "queryString": [],
+  "headers": [
+    {
+      "name": "Content-Type",
+      "value": "multipart/form-data; boundary=ce268b20-a3e6-1f08-b0a5-591aeb704467"
+    },
+    {
+      "name": "User-Agent",
+      "value": "Test Agent"
+    }
+  ],
+  "postData": {
+    "mimeType": "multipart/form-data; boundary=ce268b20-a3e6-1f08-b0a5-591aeb704467",
+    "params": [
+      {
+        "name": "text",
+        "value": "API"
+      },
+      {
+        "name": "sep",
+        "value": "|"
+      },
+      {
+        "name": "times",
+        "value": "3"
+      }
+    ]
+  }
+}""";
+      expect(
+          codeGen.getCode(CodegenLanguage.har, requestModelPost5, "https",
+              boundary: "ce268b20-a3e6-1f08-b0a5-591aeb704467"),
+          expectedCode);
+    });
+
+    test('POST 6', () {
+      const expectedCode = r"""{
+  "method": "POST",
+  "url": "https://api.apidash.dev/io/img",
+  "httpVersion": "HTTP/1.1",
+  "queryString": [],
+  "headers": [
+    {
+      "name": "Content-Type",
+      "value": "multipart/form-data; boundary=c90d21a0-a44d-1f08-b0a5-591aeb704467"
+    }
+  ],
+  "postData": {
+    "mimeType": "multipart/form-data; boundary=c90d21a0-a44d-1f08-b0a5-591aeb704467",
+    "params": [
+      {
+        "name": "token",
+        "value": "xyz"
+      },
+      {
+        "name": "imfile",
+        "fileName": "1.png"
+      }
+    ]
+  }
+}""";
+      expect(
+          codeGen.getCode(CodegenLanguage.har, requestModelPost6, "https",
+              boundary: "c90d21a0-a44d-1f08-b0a5-591aeb704467"),
+          expectedCode);
+    });
+
+    test('POST 7', () {
+      const expectedCode = r"""{
+  "method": "POST",
+  "url": "https://api.apidash.dev/io/img",
+  "httpVersion": "HTTP/1.1",
+  "queryString": [],
+  "headers": [
+    {
+      "name": "Content-Type",
+      "value": "multipart/form-data; boundary=4ac86770-a4dc-1f08-b0a5-591aeb704467"
+    }
+  ],
+  "postData": {
+    "mimeType": "multipart/form-data; boundary=4ac86770-a4dc-1f08-b0a5-591aeb704467",
+    "params": [
+      {
+        "name": "token",
+        "value": "xyz"
+      },
+      {
+        "name": "imfile",
+        "fileName": "1.png"
+      }
+    ]
+  }
+}""";
+      expect(
+          codeGen.getCode(CodegenLanguage.har, requestModelPost7, "https",
+              boundary: "4ac86770-a4dc-1f08-b0a5-591aeb704467"),
+          expectedCode);
+    });
+
+    test('POST 8', () {
+      const expectedCode = r"""{
+  "method": "POST",
+  "url": "https://api.apidash.dev/io/form?size=2&len=3",
+  "httpVersion": "HTTP/1.1",
+  "queryString": [
+    {
+      "name": "size",
+      "value": "2"
+    },
+    {
+      "name": "len",
+      "value": "3"
+    }
+  ],
+  "headers": [
+    {
+      "name": "Content-Type",
+      "value": "multipart/form-data; boundary=78403a20-a54a-1f08-b0a5-591aeb704467"
+    }
+  ],
+  "postData": {
+    "mimeType": "multipart/form-data; boundary=78403a20-a54a-1f08-b0a5-591aeb704467",
+    "params": [
+      {
+        "name": "text",
+        "value": "API"
+      },
+      {
+        "name": "sep",
+        "value": "|"
+      },
+      {
+        "name": "times",
+        "value": "3"
+      }
+    ]
+  }
+}""";
+      expect(
+          codeGen.getCode(CodegenLanguage.har, requestModelPost8, "https",
+              boundary: "78403a20-a54a-1f08-b0a5-591aeb704467"),
+          expectedCode);
+    });
+
+    test('POST 9', () {
+      const expectedCode = r"""{
+  "method": "POST",
+  "url": "https://api.apidash.dev/io/img?size=2&len=3",
+  "httpVersion": "HTTP/1.1",
+  "queryString": [
+    {
+      "name": "size",
+      "value": "2"
+    },
+    {
+      "name": "len",
+      "value": "3"
+    }
+  ],
+  "headers": [
+    {
+      "name": "Content-Type",
+      "value": "multipart/form-data; boundary=2d9cd390-a593-1f08-b0a5-591aeb704467"
+    },
+    {
+      "name": "User-Agent",
+      "value": "Test Agent"
+    },
+    {
+      "name": "Keep-Alive",
+      "value": "true"
+    }
+  ],
+  "postData": {
+    "mimeType": "multipart/form-data; boundary=2d9cd390-a593-1f08-b0a5-591aeb704467",
+    "params": [
+      {
+        "name": "token",
+        "value": "xyz"
+      },
+      {
+        "name": "imfile",
+        "fileName": "1.png"
+      }
+    ]
+  }
+}""";
+      expect(
+          codeGen.getCode(CodegenLanguage.har, requestModelPost9, "https",
+              boundary: "2d9cd390-a593-1f08-b0a5-591aeb704467"),
+          expectedCode);
    });
  });

@ -336,7 +588,8 @@ void main() {
    "text": "{\n\"name\": \"morpheus\",\n\"job\": \"zion resident\"\n}"
  }
 }""";
-      expect(harCodeGen.getCode(requestModelPut1, "https"), expectedCode);
+      expect(codeGen.getCode(CodegenLanguage.har, requestModelPut1, "https"),
+          expectedCode);
    });
  });

@ -358,7 +611,8 @@ void main() {
    "text": "{\n\"name\": \"marfeus\",\n\"job\": \"accountant\"\n}"
  }
 }""";
-      expect(harCodeGen.getCode(requestModelPatch1, "https"), expectedCode);
+      expect(codeGen.getCode(CodegenLanguage.har, requestModelPatch1, "https"),
+          expectedCode);
    });
  });

@ -371,7 +625,8 @@ void main() {
  "queryString": [],
  "headers": []
 }""";
-      expect(harCodeGen.getCode(requestModelDelete1, "https"), expectedCode);
+      expect(codeGen.getCode(CodegenLanguage.har, requestModelDelete1, "https"),
+          expectedCode);
    });

    test('DELETE 2', () {
@ -391,7 +646,8 @@ void main() {
    "text": "{\n\"name\": \"marfeus\",\n\"job\": \"accountant\"\n}"
  }
 }""";
-      expect(harCodeGen.getCode(requestModelDelete2, "https"), expectedCode);
+      expect(codeGen.getCode(CodegenLanguage.har, requestModelDelete2, "https"),
+          expectedCode);
    });
  });
 }
--- a/test/codegen/js_axios_codegen_test.dart
+++ b/test/codegen/js_axios_codegen_test.dart
@ -1,9 +1,10 @@
-import 'package:apidash/codegen/js/axios.dart';
-import '../request_models.dart';
+import 'package:apidash/codegen/codegen.dart';
+import 'package:apidash/consts.dart';
 import 'package:test/test.dart';
+import '../request_models.dart';

 void main() {
-  final axiosCodeGen = AxiosCodeGen();
+  final codeGen = Codegen();

  group('GET Request', () {
    test('GET 1', () {
@ -24,7 +25,9 @@ axios(config)
        console.log(error);
    });
 """;
-      expect(axiosCodeGen.getCode(requestModelGet1, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.jsAxios, requestModelGet1, "https"),
+          expectedCode);
    });

    test('GET 2', () {
@ -48,7 +51,9 @@ axios(config)
        console.log(error);
    });
 """;
-      expect(axiosCodeGen.getCode(requestModelGet2, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.jsAxios, requestModelGet2, "https"),
+          expectedCode);
    });

    test('GET 3', () {
@ -72,7 +77,9 @@ axios(config)
        console.log(error);
    });
 """;
-      expect(axiosCodeGen.getCode(requestModelGet3, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.jsAxios, requestModelGet3, "https"),
+          expectedCode);
    });

    test('GET 4', () {
@ -100,7 +107,9 @@ axios(config)
        console.log(error);
    });
 """;
-      expect(axiosCodeGen.getCode(requestModelGet4, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.jsAxios, requestModelGet4, "https"),
+          expectedCode);
    });

    test('GET 5', () {
@ -124,7 +133,9 @@ axios(config)
        console.log(error);
    });
 """;
-      expect(axiosCodeGen.getCode(requestModelGet5, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.jsAxios, requestModelGet5, "https"),
+          expectedCode);
    });

    test('GET 6', () {
@ -151,7 +162,9 @@ axios(config)
        console.log(error);
    });
 """;
-      expect(axiosCodeGen.getCode(requestModelGet6, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.jsAxios, requestModelGet6, "https"),
+          expectedCode);
    });

    test('GET 7', () {
@ -172,7 +185,9 @@ axios(config)
        console.log(error);
    });
 """;
-      expect(axiosCodeGen.getCode(requestModelGet7, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.jsAxios, requestModelGet7, "https"),
+          expectedCode);
    });

    test('GET 8', () {
@ -199,7 +214,9 @@ axios(config)
        console.log(error);
    });
 """;
-      expect(axiosCodeGen.getCode(requestModelGet8, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.jsAxios, requestModelGet8, "https"),
+          expectedCode);
    });

    test('GET 9', () {
@ -224,7 +241,9 @@ axios(config)
        console.log(error);
    });
 """;
-      expect(axiosCodeGen.getCode(requestModelGet9, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.jsAxios, requestModelGet9, "https"),
+          expectedCode);
    });

    test('GET 10', () {
@ -249,7 +268,8 @@ axios(config)
    });
 """;
      expect(
-          axiosCodeGen.getCode(
+          codeGen.getCode(
+            CodegenLanguage.jsAxios,
            requestModelGet10,
            "https",
          ),
@ -281,7 +301,9 @@ axios(config)
        console.log(error);
    });
 """;
-      expect(axiosCodeGen.getCode(requestModelGet11, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.jsAxios, requestModelGet11, "https"),
+          expectedCode);
    });

    test('GET 12', () {
@ -302,7 +324,9 @@ axios(config)
        console.log(error);
    });
 """;
-      expect(axiosCodeGen.getCode(requestModelGet12, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.jsAxios, requestModelGet12, "https"),
+          expectedCode);
    });
  });

@ -325,7 +349,9 @@ axios(config)
        console.log(error);
    });
 """;
-      expect(axiosCodeGen.getCode(requestModelHead1, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.jsAxios, requestModelHead1, "https"),
+          expectedCode);
    });

    test('HEAD 2', () {
@ -346,7 +372,9 @@ axios(config)
        console.log(error);
    });
 """;
-      expect(axiosCodeGen.getCode(requestModelHead2, "http"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.jsAxios, requestModelHead2, "http"),
+          expectedCode);
    });
  });

@ -373,7 +401,9 @@ axios(config)
        console.log(error);
    });
 """;
-      expect(axiosCodeGen.getCode(requestModelPost1, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.jsAxios, requestModelPost1, "https"),
+          expectedCode);
    });

    test('POST 2', () {
@ -383,7 +413,7 @@ axios(config)
  headers: {
    "Content-Type": "application/json"
  },
-  data: "{\n\"text\": \"I LOVE Flutter\"\n}"
+  data: "{\n\"text\": \"I LOVE Flutter\",\n\"flag\": null,\n\"male\": true,\n\"female\": false,\n\"no\": 1.2,\n\"arr\": [\"null\", \"true\", \"false\", null]\n}"
 };

 axios(config)
@ -398,7 +428,9 @@ axios(config)
        console.log(error);
    });
 """;
-      expect(axiosCodeGen.getCode(requestModelPost2, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.jsAxios, requestModelPost2, "https"),
+          expectedCode);
    });

    test('POST 3', () {
@ -424,7 +456,9 @@ axios(config)
        console.log(error);
    });
 """;
-      expect(axiosCodeGen.getCode(requestModelPost3, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.jsAxios, requestModelPost3, "https"),
+          expectedCode);
    });
  });

@ -451,7 +485,9 @@ axios(config)
        console.log(error);
    });
 """;
-      expect(axiosCodeGen.getCode(requestModelPut1, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.jsAxios, requestModelPut1, "https"),
+          expectedCode);
    });
  });

@ -478,7 +514,9 @@ axios(config)
        console.log(error);
    });
 """;
-      expect(axiosCodeGen.getCode(requestModelPatch1, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.jsAxios, requestModelPatch1, "https"),
+          expectedCode);
    });
  });

@ -501,7 +539,10 @@ axios(config)
        console.log(error);
    });
 """;
-      expect(axiosCodeGen.getCode(requestModelDelete1, "https"), expectedCode);
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.jsAxios, requestModelDelete1, "https"),
+          expectedCode);
    });

    test('DELETE 2', () {
@ -526,7 +567,10 @@ axios(config)
        console.log(error);
    });
 """;
-      expect(axiosCodeGen.getCode(requestModelDelete2, "https"), expectedCode);
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.jsAxios, requestModelDelete2, "https"),
+          expectedCode);
    });
  });
 }
--- a/test/codegen/js_fetch_codegen_test.dart
+++ b/test/codegen/js_fetch_codegen_test.dart
@ -1,9 +1,10 @@
-import 'package:apidash/codegen/js/fetch.dart';
-import '../request_models.dart';
+import 'package:apidash/codegen/codegen.dart';
+import 'package:apidash/consts.dart';
 import 'package:test/test.dart';
+import '../request_models.dart';

 void main() {
-  final fetchCodeGen = FetchCodeGen();
+  final codeGen = Codegen();

  group('GET Request', () {
    test('GET 1', () {
@ -28,7 +29,9 @@ fetch(url, options)
        console.error('error:' + err);
    });
 """;
-      expect(fetchCodeGen.getCode(requestModelGet1, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.jsFetch, requestModelGet1, "https"),
+          expectedCode);
    });

    test('GET 2', () {
@ -54,7 +57,9 @@ fetch(url, options)
        console.error('error:' + err);
    });
 """;
-      expect(fetchCodeGen.getCode(requestModelGet2, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.jsFetch, requestModelGet2, "https"),
+          expectedCode);
    });

    test('GET 3', () {
@ -80,7 +85,9 @@ fetch(url, options)
        console.error('error:' + err);
    });
 """;
-      expect(fetchCodeGen.getCode(requestModelGet3, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.jsFetch, requestModelGet3, "https"),
+          expectedCode);
    });

    test('GET 4', () {
@ -106,7 +113,9 @@ fetch(url, options)
        console.error('error:' + err);
    });
 """;
-      expect(fetchCodeGen.getCode(requestModelGet4, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.jsFetch, requestModelGet4, "https"),
+          expectedCode);
    });

    test('GET 5', () {
@ -135,7 +144,9 @@ fetch(url, options)
        console.error('error:' + err);
    });
 """;
-      expect(fetchCodeGen.getCode(requestModelGet5, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.jsFetch, requestModelGet5, "https"),
+          expectedCode);
    });

    test('GET 6', () {
@ -164,7 +175,9 @@ fetch(url, options)
        console.error('error:' + err);
    });
 """;
-      expect(fetchCodeGen.getCode(requestModelGet6, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.jsFetch, requestModelGet6, "https"),
+          expectedCode);
    });

    test('GET 7', () {
@ -189,7 +202,9 @@ fetch(url, options)
        console.error('error:' + err);
    });
 """;
-      expect(fetchCodeGen.getCode(requestModelGet7, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.jsFetch, requestModelGet7, "https"),
+          expectedCode);
    });

    test('GET 8', () {
@ -218,7 +233,9 @@ fetch(url, options)
        console.error('error:' + err);
    });
 """;
-      expect(fetchCodeGen.getCode(requestModelGet8, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.jsFetch, requestModelGet8, "https"),
+          expectedCode);
    });

    test('GET 9', () {
@ -244,7 +261,9 @@ fetch(url, options)
        console.error('error:' + err);
    });
 """;
-      expect(fetchCodeGen.getCode(requestModelGet9, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.jsFetch, requestModelGet9, "https"),
+          expectedCode);
    });

    test('GET 10', () {
@ -274,7 +293,8 @@ fetch(url, options)
    });
 """;
      expect(
-          fetchCodeGen.getCode(
+          codeGen.getCode(
+            CodegenLanguage.jsFetch,
            requestModelGet10,
            "https",
          ),
@ -307,7 +327,9 @@ fetch(url, options)
        console.error('error:' + err);
    });
 """;
-      expect(fetchCodeGen.getCode(requestModelGet11, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.jsFetch, requestModelGet11, "https"),
+          expectedCode);
    });

    test('GET 12', () {
@ -333,7 +355,9 @@ fetch(url, options)
        console.error('error:' + err);
    });
 """;
-      expect(fetchCodeGen.getCode(requestModelGet12, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.jsFetch, requestModelGet12, "https"),
+          expectedCode);
    });
  });

@ -360,7 +384,9 @@ fetch(url, options)
        console.error('error:' + err);
    });
 """;
-      expect(fetchCodeGen.getCode(requestModelHead1, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.jsFetch, requestModelHead1, "https"),
+          expectedCode);
    });

    test('HEAD 2', () {
@ -385,7 +411,9 @@ fetch(url, options)
        console.error('error:' + err);
    });
 """;
-      expect(fetchCodeGen.getCode(requestModelHead2, "http"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.jsFetch, requestModelHead2, "http"),
+          expectedCode);
    });
  });

@ -417,7 +445,9 @@ fetch(url, options)
        console.error('error:' + err);
    });
 """;
-      expect(fetchCodeGen.getCode(requestModelPost1, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.jsFetch, requestModelPost1, "https"),
+          expectedCode);
    });

    test('POST 2', () {
@ -429,7 +459,7 @@ let options = {
    "Content-Type": "application/json"
  },
  body: 
-"{\n\"text\": \"I LOVE Flutter\"\n}"
+"{\n\"text\": \"I LOVE Flutter\",\n\"flag\": null,\n\"male\": true,\n\"female\": false,\n\"no\": 1.2,\n\"arr\": [\"null\", \"true\", \"false\", null]\n}"
 };

 let status;
@ -447,7 +477,9 @@ fetch(url, options)
        console.error('error:' + err);
    });
 """;
-      expect(fetchCodeGen.getCode(requestModelPost2, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.jsFetch, requestModelPost2, "https"),
+          expectedCode);
    });

    test('POST 3', () {
@ -478,7 +510,9 @@ fetch(url, options)
        console.error('error:' + err);
    });
 """;
-      expect(fetchCodeGen.getCode(requestModelPost3, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.jsFetch, requestModelPost3, "https"),
+          expectedCode);
    });
  });

@ -510,7 +544,9 @@ fetch(url, options)
        console.error('error:' + err);
    });
 """;
-      expect(fetchCodeGen.getCode(requestModelPut1, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.jsFetch, requestModelPut1, "https"),
+          expectedCode);
    });
  });

@ -542,7 +578,9 @@ fetch(url, options)
        console.error('error:' + err);
    });
 """;
-      expect(fetchCodeGen.getCode(requestModelPatch1, "https"), expectedCode);
+      expect(
+          codeGen.getCode(CodegenLanguage.jsFetch, requestModelPatch1, "https"),
+          expectedCode);
    });
  });

@ -569,7 +607,10 @@ fetch(url, options)
        console.error('error:' + err);
    });
 """;
-      expect(fetchCodeGen.getCode(requestModelDelete1, "https"), expectedCode);
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.jsFetch, requestModelDelete1, "https"),
+          expectedCode);
    });

    test('DELETE 2', () {
@ -599,7 +640,10 @@ fetch(url, options)
        console.error('error:' + err);
    });
 """;
-      expect(fetchCodeGen.getCode(requestModelDelete2, "https"), expectedCode);
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.jsFetch, requestModelDelete2, "https"),
+          expectedCode);
    });
  });
 }
--- a/test/codegen/kotlin_okhttp_codegen_test.dart
+++ b/test/codegen/kotlin_okhttp_codegen_test.dart
@ -1,9 +1,10 @@
-import 'package:apidash/codegen/kotlin/okhttp.dart';
+import 'package:apidash/codegen/codegen.dart';
+import 'package:apidash/consts.dart';
 import 'package:test/test.dart';
 import '../request_models.dart';

 void main() {
-  final kotlinOkHttpCodeGen = KotlinOkHttpCodeGen();
+  final codeGen = Codegen();

  group('GET Request', () {
    test('GET 1', () {
@ -27,7 +28,9 @@ fun main() {
 }
 """;
      expect(
-          kotlinOkHttpCodeGen.getCode(requestModelGet1, "https"), expectedCode);
+          codeGen.getCode(
+              CodegenLanguage.kotlinOkHttp, requestModelGet1, "https"),
+          expectedCode);
    });

    test('GET 2', () {
@ -54,7 +57,9 @@ fun main() {
 }
 """;
      expect(
-          kotlinOkHttpCodeGen.getCode(requestModelGet2, "https"), expectedCode);
+          codeGen.getCode(
+              CodegenLanguage.kotlinOkHttp, requestModelGet2, "https"),
+          expectedCode);
    });

    test('GET 3', () {
@ -81,7 +86,9 @@ fun main() {
 }
 """;
      expect(
-          kotlinOkHttpCodeGen.getCode(requestModelGet3, "https"), expectedCode);
+          codeGen.getCode(
+              CodegenLanguage.kotlinOkHttp, requestModelGet3, "https"),
+          expectedCode);
    });

    test('GET 4', () {
@ -112,7 +119,9 @@ fun main() {
 }
 """;
      expect(
-          kotlinOkHttpCodeGen.getCode(requestModelGet4, "https"), expectedCode);
+          codeGen.getCode(
+              CodegenLanguage.kotlinOkHttp, requestModelGet4, "https"),
+          expectedCode);
    });

    test('GET 5', () {
@ -137,7 +146,9 @@ fun main() {
 }
 """;
      expect(
-          kotlinOkHttpCodeGen.getCode(requestModelGet5, "https"), expectedCode);
+          codeGen.getCode(
+              CodegenLanguage.kotlinOkHttp, requestModelGet5, "https"),
+          expectedCode);
    });

    test('GET 6', () {
@ -165,7 +176,9 @@ fun main() {
 }
 """;
      expect(
-          kotlinOkHttpCodeGen.getCode(requestModelGet6, "https"), expectedCode);
+          codeGen.getCode(
+              CodegenLanguage.kotlinOkHttp, requestModelGet6, "https"),
+          expectedCode);
    });

    test('GET 7', () {
@ -189,7 +202,9 @@ fun main() {
 }
 """;
      expect(
-          kotlinOkHttpCodeGen.getCode(requestModelGet7, "https"), expectedCode);
+          codeGen.getCode(
+              CodegenLanguage.kotlinOkHttp, requestModelGet7, "https"),
+          expectedCode);
    });

    test('GET 8', () {
@ -217,7 +232,9 @@ fun main() {
 }
 """;
      expect(
-          kotlinOkHttpCodeGen.getCode(requestModelGet8, "https"), expectedCode);
+          codeGen.getCode(
+              CodegenLanguage.kotlinOkHttp, requestModelGet8, "https"),
+          expectedCode);
    });

    test('GET 9', () {
@ -245,7 +262,9 @@ fun main() {
 }
 """;
      expect(
-          kotlinOkHttpCodeGen.getCode(requestModelGet9, "https"), expectedCode);
+          codeGen.getCode(
+              CodegenLanguage.kotlinOkHttp, requestModelGet9, "https"),
+          expectedCode);
    });

    test('GET 10', () {
@ -270,7 +289,8 @@ fun main() {
 }
 """;
      expect(
-          kotlinOkHttpCodeGen.getCode(
+          codeGen.getCode(
+            CodegenLanguage.kotlinOkHttp,
            requestModelGet10,
            "https",
          ),
@ -302,7 +322,9 @@ fun main() {
    println(response.body?.string())
 }
 """;
-      expect(kotlinOkHttpCodeGen.getCode(requestModelGet11, "https"),
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.kotlinOkHttp, requestModelGet11, "https"),
          expectedCode);
    });

@ -326,7 +348,9 @@ fun main() {
    println(response.body?.string())
 }
 """;
-      expect(kotlinOkHttpCodeGen.getCode(requestModelGet12, "https"),
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.kotlinOkHttp, requestModelGet12, "https"),
          expectedCode);
    });
  });
@ -352,7 +376,9 @@ fun main() {
    println(response.body?.string())
 }
 """;
-      expect(kotlinOkHttpCodeGen.getCode(requestModelHead1, "https"),
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.kotlinOkHttp, requestModelHead1, "https"),
          expectedCode);
    });

@ -377,7 +403,9 @@ fun main() {
 }
 """;
      expect(
-          kotlinOkHttpCodeGen.getCode(requestModelHead2, "http"), expectedCode);
+          codeGen.getCode(
+              CodegenLanguage.kotlinOkHttp, requestModelHead2, "http"),
+          expectedCode);
    });
  });

@ -410,7 +438,9 @@ fun main() {
    println(response.body?.string())
 }
 ''';
-      expect(kotlinOkHttpCodeGen.getCode(requestModelPost1, "https"),
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.kotlinOkHttp, requestModelPost1, "https"),
          expectedCode);
    });

@ -428,7 +458,12 @@ fun main() {
    val mediaType = "application/json".toMediaType()

    val body = """{
-"text": "I LOVE Flutter"
+"text": "I LOVE Flutter",
+"flag": null,
+"male": true,
+"female": false,
+"no": 1.2,
+"arr": ["null", "true", "false", null]
 }""".toRequestBody(mediaType)

    val request = Request.Builder()
@ -442,7 +477,9 @@ fun main() {
    println(response.body?.string())
 }
 ''';
-      expect(kotlinOkHttpCodeGen.getCode(requestModelPost2, "https"),
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.kotlinOkHttp, requestModelPost2, "https"),
          expectedCode);
    });

@ -475,7 +512,9 @@ fun main() {
    println(response.body?.string())
 }
 ''';
-      expect(kotlinOkHttpCodeGen.getCode(requestModelPost3, "https"),
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.kotlinOkHttp, requestModelPost3, "https"),
          expectedCode);
    });

@ -504,7 +543,9 @@ fun main() {
    println(response.body?.string())
 }
 ''';
-      expect(kotlinOkHttpCodeGen.getCode(requestModelPost5, "https"),
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.kotlinOkHttp, requestModelPost5, "https"),
          expectedCode);
    });
  });
@ -540,7 +581,9 @@ fun main() {
 }
 ''';
      expect(
-          kotlinOkHttpCodeGen.getCode(requestModelPut1, "https"), expectedCode);
+          codeGen.getCode(
+              CodegenLanguage.kotlinOkHttp, requestModelPut1, "https"),
+          expectedCode);
    });
  });

@ -574,7 +617,9 @@ fun main() {
    println(response.body?.string())
 }
 ''';
-      expect(kotlinOkHttpCodeGen.getCode(requestModelPatch1, "https"),
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.kotlinOkHttp, requestModelPatch1, "https"),
          expectedCode);
    });
  });
@ -600,7 +645,9 @@ fun main() {
    println(response.body?.string())
 }
 """;
-      expect(kotlinOkHttpCodeGen.getCode(requestModelDelete1, "https"),
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.kotlinOkHttp, requestModelDelete1, "https"),
          expectedCode);
    });

@ -633,7 +680,9 @@ fun main() {
    println(response.body?.string())
 }
 ''';
-      expect(kotlinOkHttpCodeGen.getCode(requestModelDelete2, "https"),
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.kotlinOkHttp, requestModelDelete2, "https"),
          expectedCode);
    });
  });
--- a/test/codegen/nodejs_axios_codegen_test.dart
+++ b/test/codegen/nodejs_axios_codegen_test.dart
@ -1,9 +1,10 @@
-import 'package:apidash/codegen/js/axios.dart';
-import '../request_models.dart';
+import 'package:apidash/codegen/codegen.dart';
+import 'package:apidash/consts.dart';
 import 'package:test/test.dart';
+import '../request_models.dart';

 void main() {
-  final axiosCodeGen = AxiosCodeGen(isNodeJs: true);
+  final codeGen = Codegen();

  group('GET Request', () {
    test('GET 1', () {
@ -26,7 +27,10 @@ axios(config)
        console.log(error);
    });
 """;
-      expect(axiosCodeGen.getCode(requestModelGet1, "https"), expectedCode);
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.nodejsAxios, requestModelGet1, "https"),
+          expectedCode);
    });

    test('GET 2', () {
@ -52,7 +56,10 @@ axios(config)
        console.log(error);
    });
 """;
-      expect(axiosCodeGen.getCode(requestModelGet2, "https"), expectedCode);
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.nodejsAxios, requestModelGet2, "https"),
+          expectedCode);
    });

    test('GET 3', () {
@ -78,7 +85,10 @@ axios(config)
        console.log(error);
    });
 """;
-      expect(axiosCodeGen.getCode(requestModelGet3, "https"), expectedCode);
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.nodejsAxios, requestModelGet3, "https"),
+          expectedCode);
    });

    test('GET 4', () {
@ -108,7 +118,10 @@ axios(config)
        console.log(error);
    });
 """;
-      expect(axiosCodeGen.getCode(requestModelGet4, "https"), expectedCode);
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.nodejsAxios, requestModelGet4, "https"),
+          expectedCode);
    });

    test('GET 5', () {
@ -134,7 +147,10 @@ axios(config)
        console.log(error);
    });
 """;
-      expect(axiosCodeGen.getCode(requestModelGet5, "https"), expectedCode);
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.nodejsAxios, requestModelGet5, "https"),
+          expectedCode);
    });

    test('GET 6', () {
@ -163,7 +179,10 @@ axios(config)
        console.log(error);
    });
 """;
-      expect(axiosCodeGen.getCode(requestModelGet6, "https"), expectedCode);
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.nodejsAxios, requestModelGet6, "https"),
+          expectedCode);
    });

    test('GET 7', () {
@ -186,7 +205,10 @@ axios(config)
        console.log(error);
    });
 """;
-      expect(axiosCodeGen.getCode(requestModelGet7, "https"), expectedCode);
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.nodejsAxios, requestModelGet7, "https"),
+          expectedCode);
    });

    test('GET 8', () {
@ -215,7 +237,10 @@ axios(config)
        console.log(error);
    });
 """;
-      expect(axiosCodeGen.getCode(requestModelGet8, "https"), expectedCode);
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.nodejsAxios, requestModelGet8, "https"),
+          expectedCode);
    });

    test('GET 9', () {
@ -242,7 +267,10 @@ axios(config)
        console.log(error);
    });
 """;
-      expect(axiosCodeGen.getCode(requestModelGet9, "https"), expectedCode);
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.nodejsAxios, requestModelGet9, "https"),
+          expectedCode);
    });

    test('GET 10', () {
@ -269,7 +297,8 @@ axios(config)
    });
 """;
      expect(
-          axiosCodeGen.getCode(
+          codeGen.getCode(
+            CodegenLanguage.nodejsAxios,
            requestModelGet10,
            "https",
          ),
@ -303,7 +332,10 @@ axios(config)
        console.log(error);
    });
 """;
-      expect(axiosCodeGen.getCode(requestModelGet11, "https"), expectedCode);
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.nodejsAxios, requestModelGet11, "https"),
+          expectedCode);
    });

    test('GET 12', () {
@ -326,7 +358,10 @@ axios(config)
        console.log(error);
    });
 """;
-      expect(axiosCodeGen.getCode(requestModelGet12, "https"), expectedCode);
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.nodejsAxios, requestModelGet12, "https"),
+          expectedCode);
    });
  });

@ -351,7 +386,10 @@ axios(config)
        console.log(error);
    });
 """;
-      expect(axiosCodeGen.getCode(requestModelHead1, "https"), expectedCode);
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.nodejsAxios, requestModelHead1, "https"),
+          expectedCode);
    });

    test('HEAD 2', () {
@ -374,7 +412,10 @@ axios(config)
        console.log(error);
    });
 """;
-      expect(axiosCodeGen.getCode(requestModelHead2, "http"), expectedCode);
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.nodejsAxios, requestModelHead2, "http"),
+          expectedCode);
    });
  });

@ -403,7 +444,10 @@ axios(config)
        console.log(error);
    });
 """;
-      expect(axiosCodeGen.getCode(requestModelPost1, "https"), expectedCode);
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.nodejsAxios, requestModelPost1, "https"),
+          expectedCode);
    });

    test('POST 2', () {
@ -415,7 +459,7 @@ let config = {
  headers: {
    "Content-Type": "application/json"
  },
-  data: "{\n\"text\": \"I LOVE Flutter\"\n}"
+  data: "{\n\"text\": \"I LOVE Flutter\",\n\"flag\": null,\n\"male\": true,\n\"female\": false,\n\"no\": 1.2,\n\"arr\": [\"null\", \"true\", \"false\", null]\n}"
 };

 axios(config)
@ -430,7 +474,10 @@ axios(config)
        console.log(error);
    });
 """;
-      expect(axiosCodeGen.getCode(requestModelPost2, "https"), expectedCode);
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.nodejsAxios, requestModelPost2, "https"),
+          expectedCode);
    });

    test('POST 3', () {
@ -458,7 +505,10 @@ axios(config)
        console.log(error);
    });
 """;
-      expect(axiosCodeGen.getCode(requestModelPost3, "https"), expectedCode);
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.nodejsAxios, requestModelPost3, "https"),
+          expectedCode);
    });
  });

@ -487,7 +537,10 @@ axios(config)
        console.log(error);
    });
 """;
-      expect(axiosCodeGen.getCode(requestModelPut1, "https"), expectedCode);
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.nodejsAxios, requestModelPut1, "https"),
+          expectedCode);
    });
  });

@ -516,7 +569,10 @@ axios(config)
        console.log(error);
    });
 """;
-      expect(axiosCodeGen.getCode(requestModelPatch1, "https"), expectedCode);
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.nodejsAxios, requestModelPatch1, "https"),
+          expectedCode);
    });
  });

@ -541,7 +597,10 @@ axios(config)
        console.log(error);
    });
 """;
-      expect(axiosCodeGen.getCode(requestModelDelete1, "https"), expectedCode);
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.nodejsAxios, requestModelDelete1, "https"),
+          expectedCode);
    });

    test('DELETE 2', () {
@ -568,7 +627,10 @@ axios(config)
        console.log(error);
    });
 """;
-      expect(axiosCodeGen.getCode(requestModelDelete2, "https"), expectedCode);
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.nodejsAxios, requestModelDelete2, "https"),
+          expectedCode);
    });
  });
 }
--- a/test/codegen/nodejs_fetch_codegen_test.dart
+++ b/test/codegen/nodejs_fetch_codegen_test.dart
@ -1,9 +1,10 @@
-import 'package:apidash/codegen/js/fetch.dart';
-import '../request_models.dart';
+import 'package:apidash/codegen/codegen.dart';
+import 'package:apidash/consts.dart';
 import 'package:test/test.dart';
+import '../request_models.dart';

 void main() {
-  final fetchCodeGen = FetchCodeGen(isNodeJs: true);
+  final codeGen = Codegen();

  group('GET Request', () {
    test('GET 1', () {
@ -30,7 +31,10 @@ fetch(url, options)
        console.error('error:' + err);
    });
 """;
-      expect(fetchCodeGen.getCode(requestModelGet1, "https"), expectedCode);
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.nodejsFetch, requestModelGet1, "https"),
+          expectedCode);
    });

    test('GET 2', () {
@ -57,7 +61,10 @@ fetch(url, options)
        console.error('error:' + err);
    });
 """;
-      expect(fetchCodeGen.getCode(requestModelGet2, "https"), expectedCode);
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.nodejsFetch, requestModelGet2, "https"),
+          expectedCode);
    });

    test('GET 3', () {
@ -84,7 +91,10 @@ fetch(url, options)
        console.error('error:' + err);
    });
 """;
-      expect(fetchCodeGen.getCode(requestModelGet3, "https"), expectedCode);
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.nodejsFetch, requestModelGet3, "https"),
+          expectedCode);
    });

    test('GET 4', () {
@ -111,7 +121,10 @@ fetch(url, options)
        console.error('error:' + err);
    });
 """;
-      expect(fetchCodeGen.getCode(requestModelGet4, "https"), expectedCode);
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.nodejsFetch, requestModelGet4, "https"),
+          expectedCode);
    });

    test('GET 5', () {
@ -141,7 +154,10 @@ fetch(url, options)
        console.error('error:' + err);
    });
 """;
-      expect(fetchCodeGen.getCode(requestModelGet5, "https"), expectedCode);
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.nodejsFetch, requestModelGet5, "https"),
+          expectedCode);
    });

    test('GET 6', () {
@ -171,7 +187,10 @@ fetch(url, options)
        console.error('error:' + err);
    });
 """;
-      expect(fetchCodeGen.getCode(requestModelGet6, "https"), expectedCode);
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.nodejsFetch, requestModelGet6, "https"),
+          expectedCode);
    });

    test('GET 7', () {
@ -198,7 +217,10 @@ fetch(url, options)
        console.error('error:' + err);
    });
 """;
-      expect(fetchCodeGen.getCode(requestModelGet7, "https"), expectedCode);
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.nodejsFetch, requestModelGet7, "https"),
+          expectedCode);
    });

    test('GET 8', () {
@ -228,7 +250,10 @@ fetch(url, options)
        console.error('error:' + err);
    });
 """;
-      expect(fetchCodeGen.getCode(requestModelGet8, "https"), expectedCode);
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.nodejsFetch, requestModelGet8, "https"),
+          expectedCode);
    });

    test('GET 9', () {
@ -255,7 +280,10 @@ fetch(url, options)
        console.error('error:' + err);
    });
 """;
-      expect(fetchCodeGen.getCode(requestModelGet9, "https"), expectedCode);
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.nodejsFetch, requestModelGet9, "https"),
+          expectedCode);
    });

    test('GET 10', () {
@ -286,7 +314,8 @@ fetch(url, options)
    });
 """;
      expect(
-          fetchCodeGen.getCode(
+          codeGen.getCode(
+            CodegenLanguage.nodejsFetch,
            requestModelGet10,
            "https",
          ),
@ -320,7 +349,10 @@ fetch(url, options)
        console.error('error:' + err);
    });
 """;
-      expect(fetchCodeGen.getCode(requestModelGet11, "https"), expectedCode);
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.nodejsFetch, requestModelGet11, "https"),
+          expectedCode);
    });

    test('GET 12', () {
@ -347,7 +379,10 @@ fetch(url, options)
        console.error('error:' + err);
    });
 """;
-      expect(fetchCodeGen.getCode(requestModelGet12, "https"), expectedCode);
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.nodejsFetch, requestModelGet12, "https"),
+          expectedCode);
    });
  });

@ -376,7 +411,10 @@ fetch(url, options)
        console.error('error:' + err);
    });
 """;
-      expect(fetchCodeGen.getCode(requestModelHead1, "https"), expectedCode);
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.nodejsFetch, requestModelHead1, "https"),
+          expectedCode);
    });

    test('HEAD 2', () {
@ -403,7 +441,10 @@ fetch(url, options)
        console.error('error:' + err);
    });
 """;
-      expect(fetchCodeGen.getCode(requestModelHead2, "http"), expectedCode);
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.nodejsFetch, requestModelHead2, "http"),
+          expectedCode);
    });
  });

@ -437,7 +478,10 @@ fetch(url, options)
        console.error('error:' + err);
    });
 """;
-      expect(fetchCodeGen.getCode(requestModelPost1, "https"), expectedCode);
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.nodejsFetch, requestModelPost1, "https"),
+          expectedCode);
    });

    test('POST 2', () {
@ -451,7 +495,7 @@ let options = {
    "Content-Type": "application/json"
  },
  body: 
-"{\n\"text\": \"I LOVE Flutter\"\n}"
+"{\n\"text\": \"I LOVE Flutter\",\n\"flag\": null,\n\"male\": true,\n\"female\": false,\n\"no\": 1.2,\n\"arr\": [\"null\", \"true\", \"false\", null]\n}"
 };

 let status;
@ -469,7 +513,10 @@ fetch(url, options)
        console.error('error:' + err);
    });
 """;
-      expect(fetchCodeGen.getCode(requestModelPost2, "https"), expectedCode);
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.nodejsFetch, requestModelPost2, "https"),
+          expectedCode);
    });

    test('POST 3', () {
@ -502,7 +549,10 @@ fetch(url, options)
        console.error('error:' + err);
    });
 """;
-      expect(fetchCodeGen.getCode(requestModelPost3, "https"), expectedCode);
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.nodejsFetch, requestModelPost3, "https"),
+          expectedCode);
    });
  });

@ -536,7 +586,10 @@ fetch(url, options)
        console.error('error:' + err);
    });
 """;
-      expect(fetchCodeGen.getCode(requestModelPut1, "https"), expectedCode);
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.nodejsFetch, requestModelPut1, "https"),
+          expectedCode);
    });
  });

@ -570,7 +623,10 @@ fetch(url, options)
        console.error('error:' + err);
    });
 """;
-      expect(fetchCodeGen.getCode(requestModelPatch1, "https"), expectedCode);
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.nodejsFetch, requestModelPatch1, "https"),
+          expectedCode);
    });
  });

@ -599,7 +655,10 @@ fetch(url, options)
        console.error('error:' + err);
    });
 """;
-      expect(fetchCodeGen.getCode(requestModelDelete1, "https"), expectedCode);
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.nodejsFetch, requestModelDelete1, "https"),
+          expectedCode);
    });

    test('DELETE 2', () {
@ -631,7 +690,10 @@ fetch(url, options)
        console.error('error:' + err);
    });
 """;
-      expect(fetchCodeGen.getCode(requestModelDelete2, "https"), expectedCode);
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.nodejsFetch, requestModelDelete2, "https"),
+          expectedCode);
    });
  });
 }
--- a/test/codegen/python_http_client_codegen_test.dart
+++ b/test/codegen/python_http_client_codegen_test.dart
@ -1,9 +1,10 @@
-import 'package:apidash/codegen/python/http_client.dart';
-import '../request_models.dart';
+import 'package:apidash/codegen/codegen.dart';
+import 'package:apidash/consts.dart';
 import 'package:test/test.dart';
+import '../request_models.dart';

 void main() {
-  final pythonHttpClientCodeGen = PythonHttpClientCodeGen();
+  final codeGen = Codegen();

  group('GET Request', () {
    test('GET 1', () {
@ -17,7 +18,9 @@ data = res.read()

 print(data.decode("utf-8"))
 """;
-      expect(pythonHttpClientCodeGen.getCode(requestModelGet1, "https"),
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.pythonHttpClient, requestModelGet1, "https"),
          expectedCode);
    });

@ -38,7 +41,9 @@ data = res.read()

 print(data.decode("utf-8"))
 """;
-      expect(pythonHttpClientCodeGen.getCode(requestModelGet2, "https"),
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.pythonHttpClient, requestModelGet2, "https"),
          expectedCode);
    });

@ -59,7 +64,9 @@ data = res.read()

 print(data.decode("utf-8"))
 """;
-      expect(pythonHttpClientCodeGen.getCode(requestModelGet3, "https"),
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.pythonHttpClient, requestModelGet3, "https"),
          expectedCode);
    });

@ -84,7 +91,9 @@ data = res.read()

 print(data.decode("utf-8"))
 """;
-      expect(pythonHttpClientCodeGen.getCode(requestModelGet4, "https"),
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.pythonHttpClient, requestModelGet4, "https"),
          expectedCode);
    });

@ -104,7 +113,9 @@ data = res.read()

 print(data.decode("utf-8"))
 """;
-      expect(pythonHttpClientCodeGen.getCode(requestModelGet5, "https"),
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.pythonHttpClient, requestModelGet5, "https"),
          expectedCode);
    });

@ -130,7 +141,9 @@ data = res.read()

 print(data.decode("utf-8"))
 """;
-      expect(pythonHttpClientCodeGen.getCode(requestModelGet6, "https"),
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.pythonHttpClient, requestModelGet6, "https"),
          expectedCode);
    });

@ -145,7 +158,9 @@ data = res.read()

 print(data.decode("utf-8"))
 """;
-      expect(pythonHttpClientCodeGen.getCode(requestModelGet7, "https"),
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.pythonHttpClient, requestModelGet7, "https"),
          expectedCode);
    });

@ -171,7 +186,9 @@ data = res.read()

 print(data.decode("utf-8"))
 """;
-      expect(pythonHttpClientCodeGen.getCode(requestModelGet8, "https"),
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.pythonHttpClient, requestModelGet8, "https"),
          expectedCode);
    });

@ -193,7 +210,9 @@ data = res.read()

 print(data.decode("utf-8"))
 """;
-      expect(pythonHttpClientCodeGen.getCode(requestModelGet9, "https"),
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.pythonHttpClient, requestModelGet9, "https"),
          expectedCode);
    });

@ -214,7 +233,8 @@ data = res.read()
 print(data.decode("utf-8"))
 """;
      expect(
-          pythonHttpClientCodeGen.getCode(
+          codeGen.getCode(
+            CodegenLanguage.pythonHttpClient,
            requestModelGet10,
            "https",
          ),
@ -244,7 +264,9 @@ data = res.read()

 print(data.decode("utf-8"))
 """;
-      expect(pythonHttpClientCodeGen.getCode(requestModelGet11, "https"),
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.pythonHttpClient, requestModelGet11, "https"),
          expectedCode);
    });

@ -259,7 +281,9 @@ data = res.read()

 print(data.decode("utf-8"))
 """;
-      expect(pythonHttpClientCodeGen.getCode(requestModelGet12, "https"),
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.pythonHttpClient, requestModelGet12, "https"),
          expectedCode);
    });
  });
@ -276,7 +300,9 @@ data = res.read()

 print(data.decode("utf-8"))
 """;
-      expect(pythonHttpClientCodeGen.getCode(requestModelHead1, "https"),
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.pythonHttpClient, requestModelHead1, "https"),
          expectedCode);
    });

@ -291,7 +317,9 @@ data = res.read()

 print(data.decode("utf-8"))
 """;
-      expect(pythonHttpClientCodeGen.getCode(requestModelHead2, "http"),
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.pythonHttpClient, requestModelHead2, "http"),
          expectedCode);
    });
  });
@ -318,7 +346,9 @@ data = res.read()

 print(data.decode("utf-8"))
 """;
-      expect(pythonHttpClientCodeGen.getCode(requestModelPost1, "https"),
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.pythonHttpClient, requestModelPost1, "https"),
          expectedCode);
    });

@ -326,7 +356,12 @@ print(data.decode("utf-8"))
      const expectedCode = r"""import http.client

 body = r'''{
-"text": "I LOVE Flutter"
+"text": "I LOVE Flutter",
+"flag": null,
+"male": true,
+"female": false,
+"no": 1.2,
+"arr": ["null", "true", "false", null]
 }'''

 headers = {
@ -343,7 +378,9 @@ data = res.read()

 print(data.decode("utf-8"))
 """;
-      expect(pythonHttpClientCodeGen.getCode(requestModelPost2, "https"),
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.pythonHttpClient, requestModelPost2, "https"),
          expectedCode);
    });

@ -369,7 +406,9 @@ data = res.read()

 print(data.decode("utf-8"))
 """;
-      expect(pythonHttpClientCodeGen.getCode(requestModelPost3, "https"),
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.pythonHttpClient, requestModelPost3, "https"),
          expectedCode);
    });
  });
@ -397,7 +436,9 @@ data = res.read()

 print(data.decode("utf-8"))
 """;
-      expect(pythonHttpClientCodeGen.getCode(requestModelPut1, "https"),
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.pythonHttpClient, requestModelPut1, "https"),
          expectedCode);
    });
  });
@ -425,7 +466,9 @@ data = res.read()

 print(data.decode("utf-8"))
 """;
-      expect(pythonHttpClientCodeGen.getCode(requestModelPatch1, "https"),
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.pythonHttpClient, requestModelPatch1, "https"),
          expectedCode);
    });
  });
@ -442,7 +485,9 @@ data = res.read()

 print(data.decode("utf-8"))
 """;
-      expect(pythonHttpClientCodeGen.getCode(requestModelDelete1, "https"),
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.pythonHttpClient, requestModelDelete1, "https"),
          expectedCode);
    });

@ -468,7 +513,9 @@ data = res.read()

 print(data.decode("utf-8"))
 """;
-      expect(pythonHttpClientCodeGen.getCode(requestModelDelete2, "https"),
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.pythonHttpClient, requestModelDelete2, "https"),
          expectedCode);
    });
  });
--- a/test/codegen/python_requests_codegen_test.dart
+++ b/test/codegen/python_requests_codegen_test.dart
@ -1,9 +1,10 @@
-import 'package:apidash/codegen/python/requests.dart';
-import '../request_models.dart';
+import 'package:apidash/codegen/codegen.dart';
+import 'package:apidash/consts.dart';
 import 'package:test/test.dart';
+import '../request_models.dart';

 void main() {
-  final pythonRequestsCodeGen = PythonRequestsCodeGen();
+  final codeGen = Codegen();

  group('GET Request', () {
    test('GET 1', () {
@ -16,7 +17,9 @@ response = requests.get(url)
 print('Status Code:', response.status_code)
 print('Response Body:', response.text)
 """;
-      expect(pythonRequestsCodeGen.getCode(requestModelGet1, "https"),
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.pythonRequests, requestModelGet1, "https"),
          expectedCode);
    });

@ -26,15 +29,17 @@ print('Response Body:', response.text)
 url = 'https://api.apidash.dev/country/data'

 params = {
-           "code": "US"
-         }
+  "code": "US"
+}

 response = requests.get(url, params=params)

 print('Status Code:', response.status_code)
 print('Response Body:', response.text)
 """;
-      expect(pythonRequestsCodeGen.getCode(requestModelGet2, "https"),
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.pythonRequests, requestModelGet2, "https"),
          expectedCode);
    });

@ -44,15 +49,17 @@ print('Response Body:', response.text)
 url = 'https://api.apidash.dev/country/data'

 params = {
-           "code": "IND"
-         }
+  "code": "IND"
+}

 response = requests.get(url, params=params)

 print('Status Code:', response.status_code)
 print('Response Body:', response.text)
 """;
-      expect(pythonRequestsCodeGen.getCode(requestModelGet3, "https"),
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.pythonRequests, requestModelGet3, "https"),
          expectedCode);
    });

@ -62,19 +69,21 @@ print('Response Body:', response.text)
 url = 'https://api.apidash.dev/humanize/social'

 params = {
-           "num": "8700000",
-           "digits": "3",
-           "system": "SS",
-           "add_space": "true",
-           "trailing_zeros": "true"
-         }
+  "num": "8700000",
+  "digits": "3",
+  "system": "SS",
+  "add_space": "true",
+  "trailing_zeros": "true"
+}

 response = requests.get(url, params=params)

 print('Status Code:', response.status_code)
 print('Response Body:', response.text)
 """;
-      expect(pythonRequestsCodeGen.getCode(requestModelGet4, "https"),
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.pythonRequests, requestModelGet4, "https"),
          expectedCode);
    });

@ -84,15 +93,17 @@ print('Response Body:', response.text)
 url = 'https://api.github.com/repos/foss42/apidash'

 headers = {
-            "User-Agent": "Test Agent"
-          }
+  "User-Agent": "Test Agent"
+}

 response = requests.get(url, headers=headers)

 print('Status Code:', response.status_code)
 print('Response Body:', response.text)
 """;
-      expect(pythonRequestsCodeGen.getCode(requestModelGet5, "https"),
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.pythonRequests, requestModelGet5, "https"),
          expectedCode);
    });

@ -102,19 +113,21 @@ print('Response Body:', response.text)
 url = 'https://api.github.com/repos/foss42/apidash'

 params = {
-           "raw": "true"
-         }
+  "raw": "true"
+}

 headers = {
-            "User-Agent": "Test Agent"
-          }
+  "User-Agent": "Test Agent"
+}

 response = requests.get(url, params=params, headers=headers)

 print('Status Code:', response.status_code)
 print('Response Body:', response.text)
 """;
-      expect(pythonRequestsCodeGen.getCode(requestModelGet6, "https"),
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.pythonRequests, requestModelGet6, "https"),
          expectedCode);
    });

@ -128,7 +141,9 @@ response = requests.get(url)
 print('Status Code:', response.status_code)
 print('Response Body:', response.text)
 """;
-      expect(pythonRequestsCodeGen.getCode(requestModelGet7, "https"),
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.pythonRequests, requestModelGet7, "https"),
          expectedCode);
    });

@ -138,19 +153,21 @@ print('Response Body:', response.text)
 url = 'https://api.github.com/repos/foss42/apidash'

 params = {
-           "raw": "true"
-         }
+  "raw": "true"
+}

 headers = {
-            "User-Agent": "Test Agent"
-          }
+  "User-Agent": "Test Agent"
+}

 response = requests.get(url, params=params, headers=headers)

 print('Status Code:', response.status_code)
 print('Response Body:', response.text)
 """;
-      expect(pythonRequestsCodeGen.getCode(requestModelGet8, "https"),
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.pythonRequests, requestModelGet8, "https"),
          expectedCode);
    });

@ -160,16 +177,18 @@ print('Response Body:', response.text)
 url = 'https://api.apidash.dev/humanize/social'

 params = {
-           "num": "8700000",
-           "add_space": "true"
-         }
+  "num": "8700000",
+  "add_space": "true"
+}

 response = requests.get(url, params=params)

 print('Status Code:', response.status_code)
 print('Response Body:', response.text)
 """;
-      expect(pythonRequestsCodeGen.getCode(requestModelGet9, "https"),
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.pythonRequests, requestModelGet9, "https"),
          expectedCode);
    });

@ -179,8 +198,8 @@ print('Response Body:', response.text)
 url = 'https://api.apidash.dev/humanize/social'

 headers = {
-            "User-Agent": "Test Agent"
-          }
+  "User-Agent": "Test Agent"
+}

 response = requests.get(url, headers=headers)

@ -188,7 +207,8 @@ print('Status Code:', response.status_code)
 print('Response Body:', response.text)
 """;
      expect(
-          pythonRequestsCodeGen.getCode(
+          codeGen.getCode(
+            CodegenLanguage.pythonRequests,
            requestModelGet10,
            "https",
          ),
@ -201,20 +221,22 @@ print('Response Body:', response.text)
 url = 'https://api.apidash.dev/humanize/social'

 params = {
-           "num": "8700000",
-           "digits": "3"
-         }
+  "num": "8700000",
+  "digits": "3"
+}

 headers = {
-            "User-Agent": "Test Agent"
-          }
+  "User-Agent": "Test Agent"
+}

 response = requests.get(url, params=params, headers=headers)

 print('Status Code:', response.status_code)
 print('Response Body:', response.text)
 """;
-      expect(pythonRequestsCodeGen.getCode(requestModelGet11, "https"),
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.pythonRequests, requestModelGet11, "https"),
          expectedCode);
    });

@ -228,7 +250,9 @@ response = requests.get(url)
 print('Status Code:', response.status_code)
 print('Response Body:', response.text)
 """;
-      expect(pythonRequestsCodeGen.getCode(requestModelGet12, "https"),
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.pythonRequests, requestModelGet12, "https"),
          expectedCode);
    });
  });
@ -244,7 +268,9 @@ response = requests.head(url)
 print('Status Code:', response.status_code)
 print('Response Body:', response.text)
 """;
-      expect(pythonRequestsCodeGen.getCode(requestModelHead1, "https"),
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.pythonRequests, requestModelHead1, "https"),
          expectedCode);
    });

@ -258,7 +284,9 @@ response = requests.head(url)
 print('Status Code:', response.status_code)
 print('Response Body:', response.text)
 """;
-      expect(pythonRequestsCodeGen.getCode(requestModelHead2, "http"),
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.pythonRequests, requestModelHead2, "http"),
          expectedCode);
    });
  });
@ -274,15 +302,17 @@ payload = r'''{
 }'''

 headers = {
-            "content-type": "text/plain"
-          }
+  "content-type": "text/plain"
+}

 response = requests.post(url, data=payload, headers=headers)

 print('Status Code:', response.status_code)
 print('Response Body:', response.text)
 """;
-      expect(pythonRequestsCodeGen.getCode(requestModelPost1, "https"),
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.pythonRequests, requestModelPost1, "https"),
          expectedCode);
    });

@ -292,7 +322,12 @@ print('Response Body:', response.text)
 url = 'https://api.apidash.dev/case/lower'

 payload = {
-"text": "I LOVE Flutter"
+"text": "I LOVE Flutter",
+"flag": None,
+"male": True,
+"female": False,
+"no": 1.2,
+"arr": ["null", "true", "false", None]
 }

 response = requests.post(url, json=payload)
@ -300,7 +335,9 @@ response = requests.post(url, json=payload)
 print('Status Code:', response.status_code)
 print('Response Body:', response.text)
 """;
-      expect(pythonRequestsCodeGen.getCode(requestModelPost2, "https"),
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.pythonRequests, requestModelPost2, "https"),
          expectedCode);
    });

@ -314,15 +351,189 @@ payload = {
 }

 headers = {
-            "User-Agent": "Test Agent"
-          }
+  "User-Agent": "Test Agent"
+}

 response = requests.post(url, json=payload, headers=headers)

 print('Status Code:', response.status_code)
 print('Response Body:', response.text)
 """;
-      expect(pythonRequestsCodeGen.getCode(requestModelPost3, "https"),
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.pythonRequests, requestModelPost3, "https"),
+          expectedCode);
+    });
+
+    test('POST 4', () {
+      const expectedCode = r"""import requests
+from requests_toolbelt.multipart.encoder import MultipartEncoder
+
+url = 'https://api.apidash.dev/io/form'
+
+payload = MultipartEncoder({
+  "text": "API",
+  "sep": "|",
+  "times": "3",
+})
+
+headers = {
+  "content-type": payload.content_type
+}
+
+response = requests.post(url, data=payload, headers=headers)
+
+print('Status Code:', response.status_code)
+print('Response Body:', response.text)
+""";
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.pythonRequests, requestModelPost4, "https"),
+          expectedCode);
+    });
+
+    test('POST 5', () {
+      const expectedCode = r"""import requests
+from requests_toolbelt.multipart.encoder import MultipartEncoder
+
+url = 'https://api.apidash.dev/io/form'
+
+payload = MultipartEncoder({
+  "text": "API",
+  "sep": "|",
+  "times": "3",
+})
+
+headers = {
+  "User-Agent": "Test Agent",
+  "content-type": payload.content_type
+}
+
+response = requests.post(url, data=payload, headers=headers)
+
+print('Status Code:', response.status_code)
+print('Response Body:', response.text)
+""";
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.pythonRequests, requestModelPost5, "https"),
+          expectedCode);
+    });
+
+    test('POST 6', () {
+      const expectedCode = r"""import requests
+from requests_toolbelt.multipart.encoder import MultipartEncoder
+
+url = 'https://api.apidash.dev/io/img'
+
+payload = MultipartEncoder({
+  "token": "xyz",
+  "imfile": ("1.png", open("/Documents/up/1.png", "rb")),
+})
+
+headers = {
+  "content-type": payload.content_type
+}
+
+response = requests.post(url, data=payload, headers=headers)
+
+print('Status Code:', response.status_code)
+print('Response Body:', response.text)
+""";
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.pythonRequests, requestModelPost6, "https"),
+          expectedCode);
+    });
+
+    test('POST 7', () {
+      const expectedCode = r"""import requests
+from requests_toolbelt.multipart.encoder import MultipartEncoder
+
+url = 'https://api.apidash.dev/io/img'
+
+payload = MultipartEncoder({
+  "token": "xyz",
+  "imfile": ("1.png", open("/Documents/up/1.png", "rb")),
+})
+
+headers = {
+  "content-type": payload.content_type
+}
+
+response = requests.post(url, data=payload, headers=headers)
+
+print('Status Code:', response.status_code)
+print('Response Body:', response.text)
+""";
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.pythonRequests, requestModelPost7, "https"),
+          expectedCode);
+    });
+
+    test('POST 8', () {
+      const expectedCode = r"""import requests
+from requests_toolbelt.multipart.encoder import MultipartEncoder
+
+url = 'https://api.apidash.dev/io/form'
+
+params = {
+  "size": "2",
+  "len": "3"
+}
+
+payload = MultipartEncoder({
+  "text": "API",
+  "sep": "|",
+  "times": "3",
+})
+
+headers = {
+  "content-type": payload.content_type
+}
+
+response = requests.post(url, params=params, data=payload, headers=headers)
+
+print('Status Code:', response.status_code)
+print('Response Body:', response.text)
+""";
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.pythonRequests, requestModelPost8, "https"),
+          expectedCode);
+    });
+
+    test('POST 9', () {
+      const expectedCode = r"""import requests
+from requests_toolbelt.multipart.encoder import MultipartEncoder
+
+url = 'https://api.apidash.dev/io/img'
+
+params = {
+  "size": "2",
+  "len": "3"
+}
+
+payload = MultipartEncoder({
+  "token": "xyz",
+  "imfile": ("1.png", open("/Documents/up/1.png", "rb")),
+})
+
+headers = {
+  "User-Agent": "Test Agent",
+  "Keep-Alive": "true",
+  "content-type": payload.content_type
+}
+
+response = requests.post(url, params=params, data=payload, headers=headers)
+
+print('Status Code:', response.status_code)
+print('Response Body:', response.text)
+""";
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.pythonRequests, requestModelPost9, "https"),
          expectedCode);
    });
  });
@ -343,7 +554,9 @@ response = requests.put(url, json=payload)
 print('Status Code:', response.status_code)
 print('Response Body:', response.text)
 """;
-      expect(pythonRequestsCodeGen.getCode(requestModelPut1, "https"),
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.pythonRequests, requestModelPut1, "https"),
          expectedCode);
    });
  });
@ -364,7 +577,9 @@ response = requests.patch(url, json=payload)
 print('Status Code:', response.status_code)
 print('Response Body:', response.text)
 """;
-      expect(pythonRequestsCodeGen.getCode(requestModelPatch1, "https"),
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.pythonRequests, requestModelPatch1, "https"),
          expectedCode);
    });
  });
@ -380,7 +595,9 @@ response = requests.delete(url)
 print('Status Code:', response.status_code)
 print('Response Body:', response.text)
 """;
-      expect(pythonRequestsCodeGen.getCode(requestModelDelete1, "https"),
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.pythonRequests, requestModelDelete1, "https"),
          expectedCode);
    });

@ -399,7 +616,9 @@ response = requests.delete(url, json=payload)
 print('Status Code:', response.status_code)
 print('Response Body:', response.text)
 """;
-      expect(pythonRequestsCodeGen.getCode(requestModelDelete2, "https"),
+      expect(
+          codeGen.getCode(
+              CodegenLanguage.pythonRequests, requestModelDelete2, "https"),
          expectedCode);
    });
  });
--- a/test/models/request_model_test.dart
+++ b/test/models/request_model_test.dart
@ -175,7 +175,7 @@ void main() {
    });
    expect(requestModel.paramsMap, {});
    expect(requestModel.formDataMapList, []);
-    expect(requestModel.isFormDataRequest, false);
+    expect(requestModel.hasFormData, false);
    expect(requestModel.hasContentTypeHeader, true);
  });

--- a/test/request_models.dart
+++ b/test/request_models.dart
@ -209,7 +209,12 @@ const requestModelPost2 = RequestModel(
  url: 'https://api.apidash.dev/case/lower',
  method: HTTPVerb.post,
  requestBody: r"""{
-"text": "I LOVE Flutter"
+"text": "I LOVE Flutter",
+"flag": null,
+"male": true,
+"female": false,
+"no": 1.2,
+"arr": ["null", "true", "false", null]
 }""",
 );

--- a/test/utils/har_utils_test.dart
+++ b/test/utils/har_utils_test.dart
@ -261,14 +261,19 @@ void main() {
          'postData': {
            'mimeType': 'application/json',
            'text': '{\n'
-                '"text": "I LOVE Flutter"\n'
+                '"text": "I LOVE Flutter",\n'
+                '"flag": null,\n'
+                '"male": true,\n'
+                '"female": false,\n'
+                '"no": 1.2,\n'
+                '"arr": ["null", "true", "false", null]\n'
                '}',
            'comment': ''
          },
          'comment': '',
          'cookies': [],
          'headersSize': -1,
-          'bodySize': 28
+          'bodySize': 124
        };
        expect(
            requestModelToHARJsonRequest(