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How to decode a Gzip Http Response in Flutter?

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I am new to Flutter. I am making a Network Request and I am getting the correct response, but the data is Gzipped. I have decompressed the same in Swift, but with Flutter, I am unable to do that. Can anyone please help?

Here's what I have tried:

import 'dart:convert';import 'package:http/http.dart';import 'package:archive/archive.dart';import 'package:flutter_app/Constants/constants.dart';class ServiceHelper {  static final sharedInstance = ServiceHelper();  Future<Response> sendRequest({String path, Map<String,dynamic> params}) async {    final String url = Constants.testURL+path;    var body = jsonEncode(params);    Response response = await post(url, body:body);    final gZipped_data = GZipDecoder().decodeBytes(response.bodyBytes);    print(gZipped_data); //flutter: [123, 34, 115, 116, 97, 116, 117, 115, 34, 58, 50, 48, 48, 44, 34, 109, 101, 115, 115, 97, 103, 101, 34, 58, 34, 83, 105, 103, 110, 32, 105, 110, 32, 67, 111, 109, 112, 108, 101, 116, 101, 100, 32, 83, 117, 99, 99, 101, 115, 115, 102, 117, 108, 108, 121, 34, 44, 34, 100, 97, 116, 97, 34, 58, 123, 34, 117, 115, 101, 114, 95, 105, 110, 102, 111, 34, 58, 123, 34, 112, 108, 97, 121, 101, 114, 95, 105, 100, 34, 58, 49, 52, 56, 54, 57, 44, 34, 112, 108, 95, 97, 112, 112, 95, 105, 100, 34, 58, 34, 57, 90, 104, 57, 82, 66, 108, 70, 34, 44, 34, 112, 114, 111, 102, 105, 108, 101, 95, 112, 105, 99, 34, 58, 34, 104, 116, 116, 112, 115, 58, 92, 47, 92, 47, 119, 119, 119, 46, 115, 112, 111, 114, 116, 115, 113, 119, 105, 122, 122, 46, 99, 111, 109, 92, 47, 118, 51, 92, 47, 105, 109, 103, 92, 47, 112, 108, 97, 121, 101, 114, 115, 92, 47, 112, 105, 99, 92, 47, 105, 80, 45, 49, 53, 50, 51, 56, 54, 57, 50, 57, 56, 46, 112, 110, 103, 34, 44, 34, 101, 109, 97, 105, 108, 34, 58, 34, 116, 101, 99, 104, 121, <…>   //This throws an error: Unhandled Exception: FormatException: Bad UTF-8 encoding 0x8b (at offset 1)    return response;  }}//This is the login function and it is in a different file main.dart Future<void> login(      {String email,      String name,      int source,      String sourceStr,      String picString,      String idToken}) async {    final String playerID = '';    final String token = await getIOSToken().then((token){      return token;    });    Map<String, dynamic> params = {"email": email,"name": name,"player_id": playerID,"source_id": source,"profile_pic": picString,"password": passwordController.text ?? "","ios_token":token,"device_type": "I","language_iso": "en","referred_by": "loginDefault","firebase_id_token": idToken,"app_version": "4.4.9"    };    Response response = await ServiceHelper.sharedInstance        .sendRequest(path: Constants.login, params: params);    if (response.statusCode == 201) {      // If server returns an OK response, parse the JSON.      return UserDetails.fromJson(json.decode(response.body));    } else {      // If that response was not OK, throw an error.      throw Exception('Failed to load post');    }  }

The expected response is JSON, but as it is Gzipped and I am unable to decompress it, I do not know how to get the JSON from it. I have tried decoding it and it gives me gzipped_data as a List of Integers as you can see above. How can I get the JSON from it?


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