GETX MOVES TO HOMESCREEN ON WRONG LOGIN-CodePudding

Hello I have a problem here am a beginner on dart and flutter development and now I stuck here, I have Auth file and login file now the problem is when ever I put credentials even wrong credentials the app still takes me to homepage what am I doing Wrong, here is my code!

import 'package:adlisting/services/Config.dart';
import 'package:http/http.dart' as http;
import 'dart:convert';
import 'package:get/get.dart';
// ignore: unnecessary_import
import 'package:get/get_state_manager/get_state_manager.dart';

class Auth extends GetxController {
  login(email, password) {
    var url = Uri.parse(Constants().apiUrl   "/auth/login");
    var input = json.encode({
      "email": email,
      "password": password,
    });
    http
        .post(url, headers: {"Content-Type": "application/json"}, body: input)
        .then((res) {
      print(res);
      print(res.body);
      Get.offAll(() => HomeScreen());
    }).catchError((err) {
      print(err);
    });
  }```

CodePudding user response：

try giving condition as - if the response status code is 200 it should move to the homepage else , if the status code is different give it a toast saying wrong credentials

CodePudding user response：

You have to check the response of API first you have to check API is giving 200 response or not like this

class Auth extends GetxController {
  login(email, password) {
    var url = Uri.parse(Constants().apiUrl   "/auth/login");
    var input = json.encode({
      "email": email,
      "password": password,
    });
    http
        .post(
      url,
      headers: {"Content-Type": "application/json"},
      body: input,
    )
        .then((res) {
      print(res);
      print(res.body);
      if (res.statusCode == 200) {
          //this means API is working fine
          Get.offAll(() => HomeScreen());
      } else {
         //show some error
      }
    }).catchError((err) {
      print(err);
    });
  }
}

now, in 200 response you have to check the success status of API which will be returning from backend like this

{
'success':true or false
}

note: Its not same for all APIs, it can vary API to API you can ask your backend developer

class Auth extends GetxController {
  login(email, password) {
    var url = Uri.parse(Constants().apiUrl   "/auth/login");
    var input = json.encode({
      "email": email,
      "password": password,
    });
    http
        .post(
      url,
      headers: {"Content-Type": "application/json"},
      body: input,
    )
        .then((res) {
      print(res);
      print(res.body);
      if (res.statusCode == 200) {
         //this means API is working fine
        if (res.body['success'] == true) {
          Get.offAll(() => HomeScreen());
        } else {
          print("username or password is not correct");
        }
      } else {
        //show some error
      }
    }).catchError((err) {
      print(err);
    });
  }
}