RequestMate

RequestMate is a lightweight yet powerful HTTP client for Flutter/Dart, built on top of the Dio package. It simplifies networking with a clean API for standard requests (GET, POST, PUT, PATCH, DELETE) and multipart uploads, while offering global configuration, token management, request cancellation, and interceptor support.

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✨ Features

• Easy-to-use HTTP requests (GET, POST, PUT, PATCH, DELETE).
• Multipart file upload support.
• Global configuration for base URL, headers, and timeouts.
• Token management with automatic refresh support.
• Request cancellation with CancelToken.
• Built-in and custom logging for requests and responses.
• Customizable error handling with a standard ApiResponse format.
• Support for custom Dio interceptors.

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🚀 Installation

Add the dependency in your pubspec.yaml:

dependencies:
  request_mate: ^0.0.1-beta.3

Then install:

flutter pub get

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🛠 Usage

1. Global Configuration

Configure RequestMate once before making requests:

import 'package:request_mate/request_mate.dart';

void main() {
  setupRequestMate(
    basePath: 'https://api.example.com/',
    defaultHeaders: {
      'Content-Type': 'application/json',
    },
    tokenCheckAndRefreshFn: () async {
      // Logic to refresh token
      return 'new_token';
    },
    showLogs: true,
    connectTimeout: 10,  // in seconds
    receiveTimeout: 10,  // in seconds
  );

  // Continue app initialization...
}

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2. GET Request

Future<void> fetchData() async {
  final response = await HttpService.request(
    RequestMateType.get,
    '/data-endpoint',
    token: 'your_token',
  );

  if (response.success) {
    print('Data: ${response.data}');
  } else {
    print('Error: ${response.errorMessage}');
  }
}

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3. POST Request with Data

Future<void> createData() async {
  final response = await HttpService.request(
    RequestMateType.post,
    '/create-endpoint',
    data: {
      'name': 'John Doe',
      'age': 30,
    },
    token: 'your_token',
  );

  if (response.success) {
    print('Created: ${response.data}');
  } else {
    print('Error: ${response.errorMessage}');
  }
}

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4. Multipart Upload

import 'dart:io';

Future<void> uploadFile(File file) async {
  final response = await HttpService.multipartRequest(
    '/upload-endpoint',
    files: {'file': file},
    bodyParams: {'description': 'My file upload'},
    token: 'your_token',
  );

  if (response.success) {
    print('Upload successful: ${response.data}');
  } else {
    print('Error: ${response.errorMessage}');
  }
}

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5. Cancel a Request

import 'package:dio/dio.dart';

CancelToken cancelToken = CancelToken();

Future<void> fetchDataWithCancel() async {
  try {
    final response = await HttpService.request(
      RequestMateType.get,
      '/data-endpoint',
      token: 'your_token',
      cancelToken: cancelToken,
    );
    print('Data: ${response.data}');
  } catch (e) {
    print('Request was canceled');
  }
}

// Cancel when needed
cancelToken.cancel('Request canceled by the user.');

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6. Using Custom Interceptors

You can register Dio interceptors globally when configuring RequestMate:

import 'package:dio/dio.dart';

void main() {
  setupRequestMate(
    basePath: 'https://api.example.com/',
    customInterceptors: [
      InterceptorsWrapper(
        onRequest: (options, handler) {
          print('➡️ Request: ${options.method} ${options.path}');
          return handler.next(options);
        },
        onResponse: (response, handler) {
          print('✅ Response: ${response.statusCode}');
          return handler.next(response);
        },
        onError: (DioException e, handler) {
          print('❌ Error: ${e.message}');
          return handler.next(e);
        },
      ),
    ],
  );
}

Use cases for interceptors:

• Add/modify headers (e.g., tokens, localization).
• Implement global error handling (e.g., redirect on 401).
• Add retry logic with exponential backoff.
• Customize logging beyond the built-in logger.

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⚙️ Advanced Configuration

• Token refresh function: Automatically called before requests to keep tokens valid.

  setupRequestMate(
    tokenCheckAndRefreshFn: () async {
      return 'new_token';
    },
  );

• Logging: Enable or disable request/response logs.

  showLogs: true,

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🛡 Error Handling

All responses are wrapped in an ApiResponse:

ApiResponse({
  required bool success,
  dynamic data,
  String? errorMessage,
  int? statusCode,
});

This makes it simple to check success and handle errors consistently.

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🤝 Contributing

Contributions are welcome! Open issues or submit pull requests for features, fixes, or improvements.

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📄 License

Licensed under the MIT License. You are free to use, modify, and distribute this package.

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