feat: added http and dio code gen

lib/codegen/dart/dio.dart

@@ -1,5 +1,8 @@
+import 'dart:convert';
+
 import 'package:apidash/consts.dart';
 import 'package:apidash/models/request_model.dart' show RequestModel;
+import 'package:apidash/utils/convert_utils.dart';
 import 'package:code_builder/code_builder.dart';
 import 'package:dart_style/dart_style.dart';
 
@@ -22,6 +25,7 @@ class DartDioCodeGen {
         headers: requestModel.headersMap,
         body: requestModel.requestBody,
         contentType: requestModel.requestBodyContentType,
+        formData: rowsToFormDataMap(requestModel.formDataList) ?? [],
       );
       return next;
     } catch (e) {
@@ -36,6 +40,7 @@ class DartDioCodeGen {
     required Map<String, String> headers,
     required String? body,
     required ContentType contentType,
+    required List<Map<String, dynamic>> formData,
   }) {
     final sbf = StringBuffer();
     final emitter = DartEmitter();
@@ -54,9 +59,22 @@ class DartDioCodeGen {
         literalMap(headers.map((key, value) => MapEntry(key, value))),
       );
     }
-
+    final multiPartList = Code('''
+      final List<Map<String,String>> formDataList = ${json.encode(formData)};
+      for (var formField in formDataList) {
+        if (formField['type'] == 'file') {
+          formData.files.add(MapEntry(
+            formField['name'],
+            await MultipartFile.fromFile(formField['value'], filename: formField['value']),
+          ));
+        } else {
+          formData.fields.add(MapEntry(formField['name'], formField['value']));
+        }
+      }
+    ''');
     Expression? dataExp;
-    if (kMethodsWithBody.contains(method) && (body?.isNotEmpty ?? false)) {
+    if ((kMethodsWithBody.contains(method) && (body?.isNotEmpty ?? false) ||
+        contentType == ContentType.formdata)) {
       final strContent = CodeExpression(Code('r\'\'\'$body\'\'\''));
       switch (contentType) {
         // dio dosen't need pass `content-type` header when body is json or plain text
@@ -69,7 +87,7 @@ class DartDioCodeGen {
           dataExp = declareFinal('data').assign(strContent);
         // when add new type of [ContentType], need update [dataExp].
         case ContentType.formdata:
-        // TODO: Need to Handle this case.
+          dataExp = declareFinal('data').assign(refer('FormData()'));
       }
     }
     final responseExp = declareFinal('response').assign(InvokeExpression.newOf(
@@ -95,6 +113,8 @@ class DartDioCodeGen {
           if (queryParamExp != null) queryParamExp,
           if (headerExp != null) headerExp,
           if (dataExp != null) dataExp,
+          if ((contentType == ContentType.formdata && formData.isNotEmpty))
+            multiPartList,
           responseExp,
           refer('print').call([refer('response').property('statusCode')]),
           refer('print').call([refer('response').property('data')]),
@@ -124,6 +144,8 @@ class DartDioCodeGen {
 
     sbf.writeln(mainFunction.accept(emitter));
 
-    return DartFormatter(pageWidth: 160).format(sbf.toString());
+    return DartFormatter(
+            pageWidth: contentType == ContentType.formdata ? 70 : 160)
+        .format(sbf.toString());
   }
 }

lib/codegen/dart/http.dart

@@ -1,7 +1,9 @@
+import 'dart:convert';
 import 'dart:io';
 
 import 'package:apidash/consts.dart';
 import 'package:apidash/models/models.dart' show RequestModel;
+import 'package:apidash/utils/convert_utils.dart';
 import 'package:code_builder/code_builder.dart';
 import 'package:dart_style/dart_style.dart';
 
@@ -24,6 +26,7 @@ class DartHttpCodeGen {
         headers: requestModel.headersMap,
         body: requestModel.requestBody,
         contentType: requestModel.requestBodyContentType,
+        formData: rowsToFormDataMap(requestModel.formDataList) ?? [],
       );
       return next;
     } catch (e) {
@@ -38,6 +41,7 @@ class DartHttpCodeGen {
     required Map<String, String> headers,
     required String? body,
     required ContentType contentType,
+    required List<Map<String, dynamic>> formData,
   }) {
     final uri = Uri.parse(url);
 
@@ -99,7 +103,9 @@ class DartHttpCodeGen {
       );
     }
     final responseExp = declareFinal('response').assign(InvokeExpression.newOf(
-      refer('http.${method.name}'),
+      refer(
+        'http.${method.name}',
+      ),
       [refer('uri')],
       {
         if (headerExp != null) 'headers': refer('headers'),
@@ -107,7 +113,36 @@ class DartHttpCodeGen {
       },
       [],
     ).awaited);
+    final multiPartRequest =
+        declareFinal('request').assign(InvokeExpression.newOf(
+      refer(
+        'http.MultipartRequest',
+      ),
+      [refer(jsonEncode(method.name.toUpperCase())), refer('uri')],
+    ));
+    final multiPartFiles = declareFinal('formDataList').assign(refer(
+      jsonEncode(formData),
+    ));
 
+    final addHeaders = refer('request.headers.addAll').call([refer('headers')]);
+    const multiPartList = Code('''
+    for (Map<String, String> formData in formDataList){
+          if (formData['type'] == 'text') {
+              request.fields.addAll({formData['name']: formData['value']});
+            } else {
+              request.files.add(
+                await http.MultipartFile.fromPath(
+                  formData['name'],
+                  formData['value'],
+                ),
+              );
+          }
+  }
+''');
+    var multiPartRequestSend =
+        declareFinal('response').assign(refer('request.send()').awaited);
+    var multiPartResponseBody = declareFinal('responseBody')
+        .assign(refer('response.stream.bytesToString()').awaited);
     final mainFunction = Method((m) {
       final statusRef = refer('statusCode');
       m
@@ -132,25 +167,49 @@ class DartHttpCodeGen {
             b.statements.add(headerExp.statement);
           }
           b.statements.add(const Code('\n'));
-          b.statements.add(responseExp.statement);
+          if (contentType == ContentType.formdata) {
-          b.statements.add(const Code('\n'));
+            if (formData.isNotEmpty) {
-          b.statements.add(declareVar('statusCode', type: refer('int'))
+              b.statements.add(multiPartFiles.statement);
-              .assign(refer('response').property('statusCode'))
+            }
-              .statement);
+            b.statements.add(multiPartRequest.statement);
+            if (formData.isNotEmpty) {
+              b.statements.add(multiPartList);
+            }
+            if (headerExp != null) {
+              b.statements.add(addHeaders.statement);
+            }
+            b.statements.add(multiPartRequestSend.statement);
+            b.statements.add(multiPartResponseBody.statement);
+            b.statements.add(declareVar('statusCode', type: refer('int'))
+                .assign(refer('response').property('statusCode'))
+                .statement);
+            b.statements.add(const Code('\n'));
+          } else {
+            b.statements.add(responseExp.statement);
+            b.statements.add(const Code('\n'));
+            b.statements.add(declareVar('statusCode', type: refer('int'))
+                .assign(refer('response').property('statusCode'))
+                .statement);
+          }
+
           b.statements.add(declareIfElse(
             condition: statusRef
                 .greaterOrEqualTo(literalNum(200))
                 .and(statusRef.lessThan(literalNum(300))),
             body: [
               refer('print').call([literalString(r'Status Code: $statusCode')]),
-              refer('print')
+              refer('print').call([
-                  .call([literalString(r'Response Body: ${response.body}')]),
+                literalString(
+                    'Response Body: ${contentType == ContentType.formdata ? ':\$responseBody' : '\${response.body}'}')
+              ]),
             ],
             elseBody: [
               refer('print')
                   .call([literalString(r'Error Status Code: $statusCode')]),
-              refer('print').call(
+              refer('print').call([
-                  [literalString(r'Error Response Body: ${response.body}')]),
+                literalString(
+                    'Error Response Body: ${contentType == ContentType.formdata ? ':\$responseBody' : '\${response.body}'}')
+              ]),
             ],
           ));
         });
@@ -158,6 +217,8 @@ class DartHttpCodeGen {
 
     sbf.writeln(mainFunction.accept(emitter));
 
-    return DartFormatter(pageWidth: 160).format(sbf.toString());
+    return DartFormatter(
+            pageWidth: contentType == ContentType.formdata ? 70 : 160)
+        .format(sbf.toString());
   }
 }

lib/services/http_service.dart

@@ -39,6 +39,7 @@ Future<(http.Response?, Duration?, String?)> request(
           requestModel.method.name.toUpperCase(),
           requestUrl,
         );
+        multiPartRequest.headers.addAll(headers);
         for (FormDataModel formData in (requestModel.formDataList ?? [])) {
           if (formData.type == FormDataType.text) {
             multiPartRequest.fields.addAll({formData.name: formData.value});