feat: add codegen for rust(actix)

lib/codegen/codegen.dart

@@ -7,6 +7,7 @@ import 'python/http_client.dart';
 import 'python/requests.dart';
 import 'js/axios.dart';
 import 'js/fetch.dart';
+import 'rust/actix.dart';
 import 'others/har.dart';
 import 'others/curl.dart';
 
@@ -42,6 +43,8 @@ class Codegen {
             .getCode(requestModel, defaultUriScheme);
       case CodegenLanguage.pythonRequests:
         return PythonRequestsCodeGen().getCode(requestModel, defaultUriScheme);
+      case CodegenLanguage.rustActix:
+        return RustActixCodeGen().getCode(requestModel, defaultUriScheme);
     }
   }
 }

lib/codegen/rust/actix.dart

@@ -0,0 +1,244 @@
+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;
+import 'package:apidash/models/models.dart' show RequestModel;
+
+class RustActixCodeGen {
+  final String kTemplateStart =
+      """{% if isFormDataRequest %}use std::io::Read;{% endif %}
+#[actix_rt::main]
+async fn main() -> Result<(), Box<dyn std::error::Error>> {
+    let url = "{{url}}";
+    let mut client = awc::Client::default().{{method}}(url);
+
+""";
+
+  String kTemplateParams = """
+
+    let params = {{params}};
+
+""";
+  int kParamsPadding = 9;
+
+  String kTemplateBody = """
+
+    let payload = "{{body}}";
+
+""";
+
+  String kTemplateJson = """
+
+    let payload = serde_json::json!({{body}});
+
+""";
+
+  String kTemplateHeaders = """
+
+    let header_str = r#"{{headers}}"#;
+    let headers_map: std::collections::HashMap<&str, &str> = serde_json::from_str(header_str)?;
+    for (key, val) in headers_map {
+        client = client.insert_header((key, val));
+    }
+
+""";
+  String kTemplateFormHeaderContentType = '''
+multipart/form-data; boundary={{boundary}}''';
+
+  int kHeadersPadding = 10;
+
+  String kTemplateRequest = """
+
+    let mut response = client
+""";
+
+  final String kStringFormDataBody = r'''
+    #[derive(serde::Deserialize)]
+    struct FormDataItem {
+        name: String,
+        value: String,
+        field_type: String,
+    }
+    let data_str = r#"{{fields_list}}"#; 
+    let form_data_items: Vec<FormDataItem> = serde_json::from_str(data_str).unwrap(); 
+    fn build_data_list(fields: Vec<FormDataItem>) -> Vec<u8> {
+        let mut data_list = Vec::new();
+  
+        for field in fields {
+            data_list.extend_from_slice(b"--{{boundary}}\r\n");
+  
+            if field.field_type == "text" {
+                data_list.extend_from_slice(
+                    format!(
+                        "Content-Disposition: form-data; name=\"{}\"\r\n",
+                        field.name
+                    )
+                    .as_bytes(),
+                );
+                data_list.extend_from_slice(b"Content-Type: text/plain\r\n\r\n");
+                data_list.extend_from_slice(field.value.as_bytes());
+                data_list.extend_from_slice(b"\r\n");
+            } else if field.field_type == "file" {
+                data_list.extend_from_slice(
+                    format!(
+                        "Content-Disposition: form-data; name=\"{}\"; filename=\"{}\"\r\n",
+                        field.name, field.value
+                    )
+                    .as_bytes(),
+                );
+  
+                let mime_type = mime_guess::from_path(&field.value)
+                    .first_or(mime_guess::mime::APPLICATION_OCTET_STREAM);
+                data_list
+                    .extend_from_slice(format!("Content-Type: {}\r\n\r\n", mime_type).as_bytes());
+  
+                let mut file = std::fs::File::open(&field.value).unwrap();
+                let mut file_contents = Vec::new();
+                file.read_to_end(&mut file_contents).unwrap();
+                data_list.extend_from_slice(&file_contents);
+                data_list.extend_from_slice(b"\r\n");
+            }
+        }
+  
+        data_list.extend_from_slice(b"--{{boundary}}--\r\n");
+        data_list
+    }
+  
+    let payload = build_data_list(form_data_items);
+''';
+
+  String kStringRequestParams = """\n    .query(&params)\n    .unwrap()
+  """;
+
+  String kStringRequestBody = """\n    .send_body(payload)""";
+
+  String kStringRequestJson = """\n    .send_json(&payload)""";
+
+  final String kStringRequestEnd = """\n    .await\n    .unwrap();
+
+    let body_bytes = response.body().await.unwrap();
+    let body = std::str::from_utf8(&body_bytes).unwrap();
+    println!("Response Status: {}", response.status());
+    println!("Response: {:?}", body);
+
+    Ok(())
+}
+""";
+
+  String? getCode(
+    RequestModel requestModel,
+    String defaultUriScheme,
+  ) {
+    try {
+      String result = "";
+      bool hasQuery = 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.enabledRequestParams,
+      );
+      Uri? uri = rec.$1;
+      if (uri != null) {
+        var templateStartUrl = jj.Template(kTemplateStart);
+        result += templateStartUrl.render({
+          "url": stripUriParams(uri),
+          'isFormDataRequest': requestModel.isFormDataRequest,
+          "method": requestModel.method.name.toLowerCase()
+        });
+
+        if (uri.hasQuery) {
+          var params = uri.queryParameters;
+          if (params.isNotEmpty) {
+            hasQuery = true;
+            var tupleStrings = params.entries
+                .map((entry) => '("${entry.key}", "${entry.value}")')
+                .toList();
+            var paramsString = "[${tupleStrings.join(', ')}]";
+            var templateParams = jj.Template(kTemplateParams);
+            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});
+            }
+          }
+        }
+
+        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) {
+            if (hasBody) {
+              headers[HttpHeaders.contentTypeHeader] =
+                  requestModel.requestBodyContentType.header;
+            }
+            var headersString = kEncoder.convert(headers);
+            headersString = padMultilineString(headersString, kHeadersPadding);
+            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(),
+        });
+
+        if (hasQuery) {
+          result += kStringRequestParams;
+        }
+
+        if (hasBody || requestModel.isFormDataRequest) {
+          result += kStringRequestBody;
+        }
+
+        if (hasJsonBody) {
+          result += kStringRequestJson;
+        }
+
+        result += kStringRequestEnd;
+      }
+      return result;
+    } catch (e) {
+      return null;
+    }
+  }
+}

lib/consts.dart

@@ -267,6 +267,7 @@ enum CodegenLanguage {
   nodejsAxios("node.js (axios)", "javascript", "js"),
   nodejsFetch("node.js (fetch)", "javascript", "js"),
   kotlinOkHttp("Kotlin (okhttp3)", "java", "kt"),
+  rustActix("Rust (Actix Client)", "rust", "rs"),
   pythonHttpClient("Python (http.client)", "python", "py"),
   pythonRequests("Python (requests)", "python", "py");