dev4jam

{
    "version": "2.0.0",
    "tasks": [
        {
            "label": "flutter: analyze",
            "type": "shell",
            "command": "flutter",
            "group": "build",
            "runOptions": {
                "instanceLimit": 1,

dev4jam

// Model interface
abstract class JsonConvertible {
  Map<String, dynamic> toJson();
  JsonConvertible.fromJson(Map<String, dynamic> json);
}

// Model
class AccessTokenResponse extends JsonConvertible {
  String? accessToken;

dev4jam

final dio = Dio()
  ..options.baseUrl = 'https://www.domain.com/api';
  ..options.connectTimeout = 5000; // 5 seconds
  ..options.receiveTimeout = 3000; // 3 seconds
try {
  final response = await dio.post('/authenticate', data: {'login': 'user_name', 'password': 'password'});
  // Check response then response.data and convert response to your model
} on Dio.DioError catch (error) {
  // Handle Dio exceptions here
} catch (error) {

dev4jam

//Instantiate a service and keep it in your DI container:
final service = NetworkService(baseUrl: 'https://www.domain.com/api');
// Prepare a request:
final request = NetworkRequest(
  type: NetworkRequestType.POST, 
  path: '/authenticate',
  data: NetworkRequestBody.json({
    'login': 'user_name', 
    'password': 'password'
  }),

dev4jam

class AccessTokenResponse {
  String? accessToken;
  AccessTokenResponse.fromJson(Map<String, dynamic> json) {
    accessToken = json['access_token'];
  }
}

dev4jam

import 'package:freezed_annotation/freezed_annotation.dart';
part 'NetworkRequestBody.freezed.dart';
@freezed
class NetworkRequestBody with _$NetworkRequestBody {
  const factory NetworkRequestBody.empty() = Empty;
  const factory NetworkRequestBody.json(Map<String, dynamic> data) = Json;
  const factory NetworkRequestBody.text(String data) = Text;
}

dev4jam

enum NetworkRequestType { GET, POST, PUT, PATCH, DELETE }
class NetworkRequest {
  const NetworkRequest({
    required this.type,
    required this.path,
    required this.data,
    this.queryParams,
    this.headers,
  });
  

dev4jam

import 'package:freezed_annotation/freezed_annotation.dart';
part 'NetworkResponse.freezed.dart';
@freezed
class NetworkResponse<Model> with _$NetworkResponse {
  const factory NetworkResponse.ok(Model data) = Ok;
  const factory NetworkResponse.invalidParameters(String message) = InvalidParameters;
  const factory NetworkResponse.noAuth(String message) = NoAuth; //401
  const factory NetworkResponse.noAccess(String message) = NoAccess; //403
  const factory NetworkResponse.badRequest(String message) = BadRequest; //400
  const factory NetworkResponse.notFound(String message) = NotFound; //404

dev4jam

class NetworkService {
  NetworkService({
    required this.baseUrl, // Base service url 
    dioClient, // Prepared Dio instance could be injected 
    httpHeaders, // Global headers could be provided as well
  })  : this._dio = dioClient,
        this._headers = httpHeaders ?? {};
  Dio? _dio;
  final String baseUrl;
  Map<String, String> _headers;

dev4jam

dynamic body = request.data.whenOrNull(
  json: (data) => data,
  text: (data) => data,
);