A http client that support baseUrl.

main.dart

import 'package:http/http.dart' as http;

class MyClient with http.BaseClient {
  final _client = http.Client();

  final Uri baseUrl;

  MyClient(this.baseUrl);

  @override
  Future<http.StreamedResponse> send(http.BaseRequest request) {
    final url = baseUrl.resolveUri(request.url);
    return _client.send(MyRequest(request.method, url));
  }

  @override
  void close() {
    _client.close();
    super.close();
  }
}

class MyRequest extends http.BaseRequest {
  MyRequest(super.method, super.url);
}