diff --git a/packages/dynamite/dynamite_end_to_end_test/lib/request_body.openapi.dart b/packages/dynamite/dynamite_end_to_end_test/lib/request_body.openapi.dart
new file mode 100644
index 00000000..07c67f84
--- /dev/null
+++ b/packages/dynamite/dynamite_end_to_end_test/lib/request_body.openapi.dart
@@ -0,0 +1,148 @@
+// ignore_for_file: camel_case_types
+// ignore_for_file: discarded_futures
+// ignore_for_file: public_member_api_docs
+// ignore_for_file: unreachable_switch_case
+import 'dart:convert';
+import 'dart:typed_data';
+
+import 'package:built_value/serializer.dart';
+import 'package:built_value/standard_json_plugin.dart';
+import 'package:dynamite_runtime/built_value.dart';
+import 'package:dynamite_runtime/http_client.dart';
+import 'package:meta/meta.dart';
+import 'package:universal_io/io.dart';
+
+class Client extends DynamiteClient {
+  Client(
+    super.baseURL, {
+    super.baseHeaders,
+    super.userAgent,
+    super.httpClient,
+    super.cookieJar,
+  });
+
+  Client.fromClient(final DynamiteClient client)
+      : super(
+          client.baseURL,
+          baseHeaders: client.baseHeaders,
+          httpClient: client.httpClient,
+          cookieJar: client.cookieJar,
+          authentications: client.authentications,
+        );
+
+  /// Returns a [Future] containing a [DynamiteResponse] with the status code, deserialized body and headers.
+  /// Throws a [DynamiteApiException] if the API call does not return an expected status code.
+  ///
+  /// Status codes:
+  ///   * default
+  ///
+  /// See:
+  ///  * [$getRaw] for an experimental operation that returns a [DynamiteRawResponse] that can be serialized.
+  Future<DynamiteResponse<void, void>> $get({final Uint8List? uint8List}) async {
+    final rawResponse = $getRaw(
+      uint8List: uint8List,
+    );
+
+    return rawResponse.future;
+  }
+
+  /// This method and the response it returns is experimental. The API might change without a major version bump.
+  ///
+  /// Returns a [Future] containing a [DynamiteRawResponse] with the raw [HttpClientResponse] and serialization helpers.
+  /// Throws a [DynamiteApiException] if the API call does not return an expected status code.
+  ///
+  /// Status codes:
+  ///   * default
+  ///
+  /// See:
+  ///  * [$get] for an operation that returns a [DynamiteResponse] with a stable API.
+  @experimental
+  DynamiteRawResponse<void, void> $getRaw({final Uint8List? uint8List}) {
+    final queryParameters = <String, dynamic>{};
+    final headers = <String, String>{};
+    Uint8List? body;
+
+    headers['Content-Type'] = 'application/octet-stream';
+    if (uint8List != null) {
+      body = uint8List;
+    }
+    const path = '/';
+    final uri = Uri(path: path, queryParameters: queryParameters.isNotEmpty ? queryParameters : null);
+
+    return DynamiteRawResponse<void, void>(
+      response: executeRequest(
+        'get',
+        uri,
+        headers,
+        body,
+        null,
+      ),
+      bodyType: null,
+      headersType: null,
+      serializers: _jsonSerializers,
+    );
+  }
+
+  /// Returns a [Future] containing a [DynamiteResponse] with the status code, deserialized body and headers.
+  /// Throws a [DynamiteApiException] if the API call does not return an expected status code.
+  ///
+  /// Status codes:
+  ///   * default
+  ///
+  /// See:
+  ///  * [postRaw] for an experimental operation that returns a [DynamiteRawResponse] that can be serialized.
+  Future<DynamiteResponse<void, void>> post({final String? string}) async {
+    final rawResponse = postRaw(
+      string: string,
+    );
+
+    return rawResponse.future;
+  }
+
+  /// This method and the response it returns is experimental. The API might change without a major version bump.
+  ///
+  /// Returns a [Future] containing a [DynamiteRawResponse] with the raw [HttpClientResponse] and serialization helpers.
+  /// Throws a [DynamiteApiException] if the API call does not return an expected status code.
+  ///
+  /// Status codes:
+  ///   * default
+  ///
+  /// See:
+  ///  * [post] for an operation that returns a [DynamiteResponse] with a stable API.
+  @experimental
+  DynamiteRawResponse<void, void> postRaw({final String? string}) {
+    final queryParameters = <String, dynamic>{};
+    final headers = <String, String>{};
+    Uint8List? body;
+
+    headers['Content-Type'] = 'application/octet-stream';
+    if (string != null) {
+      body = utf8.encode(string) as Uint8List;
+    }
+    const path = '/';
+    final uri = Uri(path: path, queryParameters: queryParameters.isNotEmpty ? queryParameters : null);
+
+    return DynamiteRawResponse<void, void>(
+      response: executeRequest(
+        'post',
+        uri,
+        headers,
+        body,
+        null,
+      ),
+      bodyType: null,
+      headersType: null,
+      serializers: _jsonSerializers,
+    );
+  }
+}
+
+// coverage:ignore-start
+final Serializers _serializers = Serializers().toBuilder().build();
+
+final Serializers _jsonSerializers = (_serializers.toBuilder()
+      ..add(DynamiteDoubleSerializer())
+      ..addPlugin(StandardJsonPlugin())
+      ..addPlugin(const ContentStringPlugin()))
+    .build();
+// coverage:ignore-end
diff --git a/packages/dynamite/dynamite_end_to_end_test/lib/request_body.openapi.json b/packages/dynamite/dynamite_end_to_end_test/lib/request_body.openapi.json
new file mode 100644
index 00000000..f92bf70d
--- /dev/null
+++ b/packages/dynamite/dynamite_end_to_end_test/lib/request_body.openapi.json
@@ -0,0 +1,44 @@
+{
+    "openapi": "3.1.0",
+    "info": {
+        "title": "request body test",
+        "version": "0.0.1"
+    },
+    "paths": {
+        "/": {
+            "get": {
+                "requestBody": {
+                    "content": {
+                        "application/octet-stream": {
+                            "schema": {
+                                "type": "string",
+                                "format": "binary"
+                            }
+                        }
+                    }
+                },
+                "responses": {
+                    "default": {
+                        "description": ""
+                    }
+                }
+            },
+            "post": {
+                "requestBody": {
+                    "content": {
+                        "application/octet-stream": {
+                            "schema": {
+                                "type": "string"
+                            }
+                        }
+                    }
+                },
+                "responses": {
+                    "default": {
+                        "description": ""
+                    }
+                }
+            }
+        }
+    }
+}