WebService example

web_service.dart

import 'dart:async';
import 'dart:io';

import 'package:built_collection/built_collection.dart';
import 'package:chopper/chopper.dart';
import 'package:flutter_translate/flutter_translate.dart';
import 'package:get/get.dart' as get_lib;
import 'package:http/io_client.dart' as http;

import '../model/user.dart';
import '../shared_prefs.dart';
import '../utils/constants.dart';
import '../utils/helpers/toast_helper.dart';
import 'built_value_converter.dart';

part 'web_service.chopper.dart';

/// Chopper library WebService, will generate code for our REST client
///
/// Will return built_value model classes from the model folder.
/// Please, use the BuiltList / BuiltMap to match the collections
///
@ChopperApi(baseUrl: '/')
abstract class WebService extends ChopperService {
  @Get(path: 'v1/{project_id}/users/{id}')
  Future<Response<User>> getUser(@Path() int project_id, @Path() int id);

  /// Create WebService with BaseUrl
  static WebService create(String baseUrl) {
    final client = ChopperClient(
        client: http.IOClient(
          // let's setup timeout
          HttpClient()..connectionTimeout = const Duration(seconds: 5),
        ),
        baseUrl: baseUrl,
        services: [
          _$WebService(),
        ],
        interceptors: [
          // Auth Interceptors
          (Request request) async => applyHeader(request, 'authorization',
              SharedPrefs.localStorage.getString(tokenHeader),
              override: false),
          (Request request) async =>
              SharedPrefs.localStorage.containsKey(serverHeader)
                  ? request.copyWith(
                      baseUrl: SharedPrefs.localStorage.getString(serverHeader))
                  : request,
          // Let's go out in case we are getting 401 (simple logic, no refreshing of token)
          (Response response) async {
            if (response?.statusCode == 401 &&
                !response.base.request.url.toString().contains('sign-in')) {
              SharedPrefs.localStorage.remove(tokenHeader);

              get_lib.Get.offAllNamed('/LoginScreen');

              toastShow(translate('authError'));
            } else if (response?.statusCode == 504) {
              toastShow(translate('timeoutError'));
            }
            return response;
          },
          HttpLoggingInterceptor(),
        ],
        converter: BuiltValueConverter());
    return _$WebService(client);
  }
}