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405 lines
15 KiB
Dart
405 lines
15 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:http/http.dart';
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import 'package:http/io_client.dart';
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import '../exceptions/api_exception.dart';
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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) {
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print(response.statusCode);
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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.isNotEmpty) {
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var jsonError = jsonDecode(response.body);
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debugPrint(jsonError);
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apiError = APIError(response.statusCode, jsonError[0]);
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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.isNotEmpty) {
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var jsonError = jsonDecode(response.body);
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debugPrint("json error : $jsonError");
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apiError = APIError(response.statusCode, jsonError[0]);
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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 const APIException(APIException.UNAUTHORIZED);
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case 403:
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return const APIException(APIException.FORBIDDEN);
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case 404:
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return const APIException(APIException.NOT_FOUND);
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case 500:
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return const 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 const APIException(APIException.OTHER);
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}
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}
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class ApiClient {
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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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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 defaultHeaders = {'Accept': 'application/json'};
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if (headers != null && headers.isNotEmpty) {
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defaultHeaders.addAll(headers);
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}
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if (!kReleaseMode) {
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debugPrint("Url:$url");
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var bodyJson = json.encode(jsonObject);
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debugPrint("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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var jsonData = jsonDecode(response.body);
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if (jsonData != null) {
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debugPrint(jsonData.runtimeType.toString());
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return factoryConstructor(jsonData);
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} else {
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APIError? apiError;
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apiError = APIError(response.statusCode, jsonData[0]);
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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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Future<U> putJsonForObject<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 defaultHeaders = {'Accept': 'application/json'};
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if (headers != null && headers.isNotEmpty) {
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defaultHeaders.addAll(headers);
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}
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if (!kReleaseMode) {
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debugPrint("Url:$url");
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var bodyJson = json.encode(jsonObject);
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debugPrint("body:$bodyJson");
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}
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var response = await putJsonForResponse(url, jsonObject, token: token, queryParameters: queryParameters, headers: headers, retryTimes: retryTimes, isFormData: isFormData);
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try {
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var jsonData = jsonDecode(response.body);
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if (jsonData != null) {
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debugPrint(jsonData.runtimeType.toString());
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return factoryConstructor(jsonData);
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} else {
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APIError? apiError;
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apiError = APIError(response.statusCode, jsonData[0]);
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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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Future<Response> postJsonForResponse<T>(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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int currentRetryTime = retryTimes;
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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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if (!kReleaseMode) {
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print("url:$url");
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print("requestBody:$requestBody");
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}
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if (isFormData) {
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headers = {'Content-Type': 'application/x-www-form-urlencoded'};
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stringObj = ((jsonObject ?? {}) as Map<String, dynamic>).map((key, value) => MapEntry(key, value?.toString() ?? ""));
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}
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if (!kReleaseMode) {
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print("url:$url");
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print("requestBody:$requestBody");
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}
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Future<Response> retry(APIException exception) async {
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if (currentRetryTime > 0) {
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currentRetryTime -= 1;
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debugPrint('will retry after 3 seconds...');
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await Future.delayed(const Duration(seconds: 3));
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return await _postForResponse(url, requestBody, token: token, queryParameters: queryParameters, headers: headers);
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} else {
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throw exception;
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}
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}
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try {
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return await _postForResponse(url, isFormData ? stringObj : requestBody, token: token, queryParameters: queryParameters, headers: headers);
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} on SocketException catch (e) {
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return await retry(APIException(APIException.OTHER, arguments: e));
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} on HttpException catch (e) {
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return await retry(APIException(APIException.OTHER, arguments: e));
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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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return await retry(APIException(APIException.OTHER, arguments: e));
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}
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}
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Future<Response> putJsonForResponse<T>(String url, T jsonObject,
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{String? token, Map<String, dynamic>? queryParameters, Map<String, String>? headers, int retryTimes = 0, bool isFormData = true}) async {
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int currentRetryTime = retryTimes;
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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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if (!kReleaseMode) {
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print(jsonObject);
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}
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if (isFormData) {
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headers = {'Content-Type': 'application/x-www-form-urlencoded'};
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stringObj = ((jsonObject ?? {}) as Map<String, dynamic>).map((key, value) => MapEntry(key, value?.toString() ?? ""));
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}
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if (!kReleaseMode) {
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print("url:$url");
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print("requestBody:$requestBody");
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}
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Future<Response> retry(APIException exception) async {
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if (currentRetryTime > 0) {
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currentRetryTime -= 1;
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debugPrint('will retry after 3 seconds...');
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await Future.delayed(const Duration(seconds: 3));
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return await _putForResponse(url, requestBody, token: token, queryParameters: queryParameters, headers: headers);
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} else {
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throw exception;
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}
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}
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try {
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return await _postForResponse(url, isFormData ? stringObj : requestBody, token: token, queryParameters: queryParameters, headers: headers);
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} on SocketException catch (e) {
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return await retry(APIException(APIException.OTHER, arguments: e));
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} on HttpException catch (e) {
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return await retry(APIException(APIException.OTHER, arguments: e));
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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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return await retry(APIException(APIException.OTHER, arguments: e));
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}
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}
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Future<Response> _postForResponse(String url, requestBody, {String? token, Map<String, dynamic>? queryParameters, Map<String, String>? headers}) async {
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var defaultHeaders = <String, String>{};
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if (token != null) {
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defaultHeaders['Authorization'] = 'Bearer $token';
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}
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if (headers != null && headers.isNotEmpty) {
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defaultHeaders.addAll(headers);
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}
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if (queryParameters != null) {
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var queryString = Uri(queryParameters: queryParameters).query;
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url = '$url?$queryString';
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}
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var response = await _post(Uri.parse(url), body: requestBody, headers: defaultHeaders).timeout(const 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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}
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}
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Future<Response> _putForResponse(String url, requestBody, {String? token, Map<String, dynamic>? queryParameters, Map<String, String>? headers}) async {
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var defaultHeaders = <String, String>{};
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if (token != null) {
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defaultHeaders['Authorization'] = 'Bearer $token';
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}
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if (headers != null && headers.isNotEmpty) {
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defaultHeaders.addAll(headers);
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}
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if (queryParameters != null) {
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var queryString = Uri(queryParameters: queryParameters).query;
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url = '$url?$queryString';
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}
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var response = await _put(Uri.parse(url), body: requestBody, headers: defaultHeaders).timeout(const 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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}
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}
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Future<Response> _deleteForResponse(String url, {String? token, Map<String, dynamic>? queryParameters, Map<String, String>? headers}) async {
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var defaultHeaders = <String, String>{};
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if (token != null) {
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defaultHeaders['Authorization'] = 'Bearer $token';
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}
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if (headers != null && headers.isNotEmpty) {
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defaultHeaders.addAll(headers);
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}
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if (queryParameters != null) {
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var queryString = Uri(queryParameters: queryParameters).query;
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url = '$url?$queryString';
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}
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var response = await _delete(Uri.parse(url), headers: defaultHeaders).timeout(const 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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}
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}
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Future<Response> getJsonForResponse<T>(String url, {String? token, Map<String, dynamic>? queryParameters, Map<String, String>? headers, int retryTimes = 0}) async {
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int currentRetryTime = retryTimes;
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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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Future<Response> retry(APIException exception) async {
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if (currentRetryTime > 0) {
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currentRetryTime -= 1;
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debugPrint('will retry after 3 seconds...');
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await Future.delayed(const Duration(seconds: 3));
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return await _getForResponse(url, token: token, queryParameters: queryParameters, headers: headers);
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} else {
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throw exception;
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}
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}
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try {
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return await _getForResponse(url, token: token, queryParameters: queryParameters, headers: headers);
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} on SocketException catch (e) {
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return await retry(APIException(APIException.OTHER, arguments: e));
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} on HttpException catch (e) {
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return await retry(APIException(APIException.OTHER, arguments: e));
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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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return await retry(APIException(APIException.OTHER, arguments: e));
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}
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}
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Future<Response> deleteJsonForResponse<T>(String url, {String? token, Map<String, dynamic>? queryParameters, Map<String, String>? headers, int retryTimes = 0}) async {
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int currentRetryTime = retryTimes;
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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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Future<Response> retry(APIException exception) async {
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if (currentRetryTime > 0) {
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currentRetryTime -= 1;
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debugPrint('will retry after 3 seconds...');
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await Future.delayed(const Duration(seconds: 3));
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return await _deleteForResponse(url, token: token, queryParameters: queryParameters, headers: headers);
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} else {
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throw exception;
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}
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}
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try {
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return await _deleteForResponse(url, token: token, queryParameters: queryParameters, headers: headers);
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} on SocketException catch (e) {
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return await retry(APIException(APIException.OTHER, arguments: e));
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} on HttpException catch (e) {
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return await retry(APIException(APIException.OTHER, arguments: e));
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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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return await retry(APIException(APIException.OTHER, arguments: e));
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}
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}
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Future<Response> _getForResponse(String url, {String? token, Map<String, dynamic>? queryParameters, Map<String, String>? headers}) async {
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var defaultHeaders = <String, String>{};
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if (token != null) {
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defaultHeaders['Authorization'] = 'Bearer $token';
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}
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if (headers != null && headers.isNotEmpty) {
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defaultHeaders.addAll(headers);
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}
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if (queryParameters != null) {
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var queryString = Uri(queryParameters: queryParameters).query;
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url = '$url?$queryString';
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}
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var response = await _get(Uri.parse(url), headers: defaultHeaders).timeout(const 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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}
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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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Future<Response> _delete(url, {Map<String, String>? headers}) => _withClient((client) => client.delete(url, headers: headers));
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}
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