flutter cache json
import 'package:dio/dio.dart';
class CacheInterceptor extends Interceptor {
CacheInterceptor();
var _cache = new Map<Uri, Response>();
@override
onRequest(RequestOptions options) async {
return options;
}
@override
onResponse(Response response) async {
_cache[response.request.uri] = response;
}
@override
onError(DioError e) async{
print('onError: $e');
if (e.type == DioErrorType.CONNECT_TIMEOUT || e.type == DioErrorType.DEFAULT) {
var cachedResponse = _cache[e.request.uri];
if (cachedResponse != null) {
return cachedResponse;
}
}
return e;
}
}