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301 lines
12 KiB
Dart
301 lines
12 KiB
Dart
import 'dart:async';
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import 'dart:convert';
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import 'dart:io';
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import 'package:flutter/foundation.dart';
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import 'package:hmg_patient_app_new/services/api_exception.dart';
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import 'package:http/http.dart';
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import 'package:http/io_client.dart';
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import '../core/app_state.dart';
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import '../core/consts.dart';
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import '../core/utils/utils.dart';
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import '../main.dart';
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// ignore_for_file: avoid_annotating_with_dynamic
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typedef FactoryConstructor<U> = U Function(dynamic);
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class APIError {
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int? errorCode;
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String? errorMessage;
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APIError(this.errorCode, this.errorMessage);
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Map<String, dynamic> toJson() => {'errorCode': errorCode, 'errorMessage': errorMessage};
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@override
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String toString() {
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return jsonEncode(this);
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}
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}
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APIException _throwAPIException(Response response, Function retryCallBack) {
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switch (response.statusCode) {
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case 200:
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APIError? apiError;
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if (response.body != null && response.body.isNotEmpty) {
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var jsonError = jsonDecode(response.body);
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print(jsonError);
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apiError = APIError(jsonError['ErrorCode'], jsonError['ErrorMessage']);
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}
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return APIException(APIException.BAD_REQUEST, error: apiError);
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case 400:
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APIError? apiError;
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if (response.body != null && response.body.isNotEmpty) {
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var jsonError = jsonDecode(response.body);
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apiError = APIError(jsonError['ErrorCode'], jsonError['ErrorMessage']);
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}
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return APIException(APIException.BAD_REQUEST, error: apiError);
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case 401:
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return APIException(APIException.UNAUTHORIZED);
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case 403:
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return APIException(APIException.FORBIDDEN);
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case 404:
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return APIException(APIException.NOT_FOUND);
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case 500:
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return APIException(APIException.INTERNAL_SERVER_ERROR);
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case 444:
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var downloadUrl = response.headers["location"];
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return APIException(APIException.UPGRADE_REQUIRED, arguments: downloadUrl);
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default:
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return APIException(APIException.OTHER);
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}
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}
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abstract class IApiClient {
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Future<U> postJsonForObject<T, U>(FactoryConstructor<U> factoryConstructor, String url, T jsonObject,
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{String? token, Map<String, dynamic>? queryParameters, Map<String, String>? headers, int retryTimes = 0, bool isFormData = false});
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Future<Response> postJsonForResponse<T>(String url, T jsonObject, {String? token, Map<String, dynamic>? queryParameters, Map<String, String>? headers, int retryTimes = 0, bool isFormData = false});
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Future<Response> getJsonForResponse<T>(String url, {String? token, Map<String, dynamic>? queryParameters, Map<String, String>? headers, int retryTimes = 0});
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void setHomeUrl(String url);
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}
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class ApiClient implements IApiClient {
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// static final ApiClient _instance = ApiClient._internal();
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// ApiClient._internal();
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// factory ApiClient() => _instance;
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@override
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Future<U> postJsonForObject<T, U>(FactoryConstructor<U> factoryConstructor, String url, T jsonObject,
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{String? token, Map<String, dynamic>? queryParameters, Map<String, String>? headers, int retryTimes = 0, bool isFormData = false}) async {
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var _headers = {'Accept': 'application/json'};
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if (headers != null && headers.isNotEmpty) {
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_headers.addAll(headers);
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}
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if (!kReleaseMode) {
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print("Url:$url");
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var bodyJson = json.encode(jsonObject);
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print("body:$bodyJson");
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}
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var response = await postJsonForResponse(url, jsonObject, token: token, queryParameters: queryParameters, headers: _headers, retryTimes: retryTimes, isFormData: isFormData);
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// try {
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if (!kReleaseMode) {
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logger.i("res: " + response.body);
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}
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var jsonData = jsonDecode(response.body);
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if (jsonData["IsAuthenticated"] != null) {
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AppState().setIsAuthenticated = jsonData["IsAuthenticated"];
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}
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if (jsonData["ErrorMessage"] == null) {
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return factoryConstructor(jsonData);
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} else {
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APIError? apiError;
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apiError = APIError(jsonData['ErrorCode'], jsonData['ErrorEndUserMessage']);
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throw APIException(APIException.BAD_REQUEST, error: apiError);
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}
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// } catch (ex) {
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// if (ex is APIException) {
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// rethrow;
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// } else {
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// throw APIException(APIException.BAD_RESPONSE_FORMAT, arguments: ex);
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// }
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// }
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}
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@override
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Future<Response> postJsonForResponse<T>(String url, T jsonObject,
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{String? token,
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Map<String, dynamic>? queryParameters,
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Map<String, String>? headers,
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int retryTimes = 0,
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bool isFormData = false,
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bool isAuthAPI = false,
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bool isHISAPI = false,
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bool isSanedAPI = false,
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bool isPutRequest = false}) async {
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String? requestBody;
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late Map<String, String> stringObj;
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if (jsonObject != null) {
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requestBody = jsonEncode(jsonObject);
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if (headers == null) {
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headers = {'Content-Type': 'application/json'};
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} else {
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headers['Content-Type'] = 'application/json';
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}
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}
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return await _postForResponse(url, requestBody, token: token, queryParameters: queryParameters, headers: headers, retryTimes: retryTimes);
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}
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Future<Response> _postForResponse(String url, requestBody, {String? token, Map<String, dynamic>? queryParameters, Map<String, String>? headers, int retryTimes = 0}) async {
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try {
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var _headers = <String, String>{};
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// if (token != null) {
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// _headers['Authorization'] = 'Bearer $token';
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// }
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if (headers != null && headers.isNotEmpty) {
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_headers.addAll(headers);
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}
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if (queryParameters != null) {
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// var queryString = new Uri(queryParameters: queryParameters).query;
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var queryString = Uri(queryParameters: queryParameters.map((key, value) => MapEntry(key, value == null ? null : value.toString()))).query;
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url = url + '?' + queryString;
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}
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// if (!kReleaseMode && url.contains("saned")) {
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if (!kReleaseMode) {
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print("Url: $url");
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print("Headers: $_headers");
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// var bodyJson = json.encode(requestBody);
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print("body: $requestBody");
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}
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var response = await _post(Uri.parse(url), body: requestBody, headers: _headers).timeout(Duration(seconds: 120));
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if (response.statusCode >= 200 && response.statusCode < 300) {
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return response;
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} else {
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throw _throwAPIException(response, () {
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// _postForResponse(url, requestBody, token: token, queryParameters: queryParameters, headers: headers, retryTimes: retryTimes, isAuthAPI: isAuthAPI);
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postJsonForResponse(url, requestBody);
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});
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}
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} on SocketException catch (e) {
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if (retryTimes > 0) {
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print('will retry after 3 seconds...');
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await Future.delayed(Duration(seconds: 3));
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return await _postForResponse(url, requestBody, token: token, queryParameters: queryParameters, headers: headers, retryTimes: retryTimes - 1);
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} else {
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throw APIException(APIException.OTHER, arguments: e);
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}
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} on HttpException catch (e) {
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if (retryTimes > 0) {
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print('will retry after 3 seconds...');
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await Future.delayed(Duration(seconds: 3));
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return await _postForResponse(url, requestBody, token: token, queryParameters: queryParameters, headers: headers, retryTimes: retryTimes - 1);
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} else {
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throw APIException(APIException.OTHER, arguments: e);
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}
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} on TimeoutException catch (e) {
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throw APIException(APIException.TIMEOUT, arguments: e);
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} on ClientException catch (e) {
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if (retryTimes > 0) {
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print('will retry after 3 seconds...');
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await Future.delayed(Duration(seconds: 3));
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return await _postForResponse(url, requestBody, token: token, queryParameters: queryParameters, headers: headers, retryTimes: retryTimes - 1);
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} else {
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throw APIException(APIException.OTHER, arguments: e);
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}
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}
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}
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@override
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Future<Response> getJsonForResponse<T>(String url, {String? token, Map<String, dynamic>? queryParameters, Map<String, String>? headers, int retryTimes = 0, bool isAuthAPI = false}) async {
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logger.i("Url:$url");
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if (headers == null) {
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headers = {'Content-Type': 'application/json'};
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} else {
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headers['Content-Type'] = 'application/json';
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}
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return await _getForResponse(url, token: token, queryParameters: queryParameters, headers: headers, retryTimes: retryTimes, isAuthAPI: isAuthAPI);
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}
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Future<Response> _getForResponse(String url, {String? token, Map<String, dynamic>? queryParameters, Map<String, String>? headers, int retryTimes = 0, bool isAuthAPI = false}) async {
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try {
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var _headers = <String, String>{};
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if (token != null) {
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_headers['Authorization'] = 'Bearer $token';
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}
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if (headers != null && headers.isNotEmpty) {
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_headers.addAll(headers);
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}
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if (isAuthAPI) {
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String token = await Utils.getStringFromPrefs(SharedPrefsConsts.appAuthToken);
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_headers['Authorization'] = "Bearer $token";
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}
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if (queryParameters != null) {
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var queryString = new Uri(queryParameters: queryParameters).query;
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url = url + '?' + queryString;
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}
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var response = await _get(Uri.parse(url), headers: _headers).timeout(Duration(seconds: 60));
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if (response.statusCode >= 200 && response.statusCode < 300) {
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return response;
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} else {
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throw _throwAPIException(response, () {
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_getForResponse(url, token: token, queryParameters: queryParameters, headers: headers, retryTimes: retryTimes);
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});
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}
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} on SocketException catch (e) {
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if (retryTimes > 0) {
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print('will retry after 3 seconds...');
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await Future.delayed(Duration(seconds: 3));
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return await _getForResponse(url, token: token, queryParameters: queryParameters, headers: headers, retryTimes: retryTimes - 1);
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} else {
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throw APIException(APIException.OTHER, arguments: e);
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}
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} on HttpException catch (e) {
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if (retryTimes > 0) {
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print('will retry after 3 seconds...');
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await Future.delayed(Duration(seconds: 3));
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return await _getForResponse(url, token: token, queryParameters: queryParameters, headers: headers, retryTimes: retryTimes - 1);
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} else {
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throw APIException(APIException.OTHER, arguments: e);
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}
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} on TimeoutException catch (e) {
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throw APIException(APIException.TIMEOUT, arguments: e);
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} on ClientException catch (e) {
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if (retryTimes > 0) {
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print('will retry after 3 seconds...');
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await Future.delayed(Duration(seconds: 3));
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return await _getForResponse(url, token: token, queryParameters: queryParameters, headers: headers, retryTimes: retryTimes - 1);
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} else {
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throw APIException(APIException.OTHER, arguments: e);
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}
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}
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}
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Future<Response> _get(url, {Map<String, String>? headers}) => _withClient((client) => client.get(url, headers: headers));
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bool _certificateCheck(X509Certificate cert, String host, int port) => true;
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Future<T> _withClient<T>(Future<T> Function(Client) fn) async {
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var httpClient = HttpClient()..badCertificateCallback = _certificateCheck;
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var client = IOClient(httpClient);
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try {
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return await fn(client);
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} finally {
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client.close();
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}
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}
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Future<Response> _post(url, {Map<String, String>? headers, body, Encoding? encoding}) => _withClient((client) => client.post(url, headers: headers, body: body, encoding: encoding));
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Future<Response> _put(url, {Map<String, String>? headers, body, Encoding? encoding}) => _withClient((client) => client.put(url, headers: headers, body: body, encoding: encoding));
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@override
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void setHomeUrl(String url) {
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// TODO: implement setHomeUrl
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}
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}
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