User Authentication With Flutter API - laravel

Question

I got my backend with Laravel and My Api looks like this :
Route::apiresource('/user','App\Http\Controllers\api\UserController');
And this is my UserController :
<?php
namespace App\Http\Controllers\Api;
use App\Http\Controllers\Controller;
use Illuminate\Http\Request;
use DB;
use App\Models\User;
use Illuminate\Support\Facades\Hash;
class UserController extends Controller
{
/**
* Display a listing of the resource.
*
* #return \Illuminate\Http\Response
*/
public function index()
{
//
$user = DB::table('users')->get();
return response()->json($user);
}
I want to know how can I check if the email and a password in a Flutter screen match my DB records when I hit login button.
This is what I've done so far now in My Flutter :
Future<User> fetchUser() async {
final response = await http
.get(Uri.parse('http://127.0.0.1:8000/api/user'));
if (response.statusCode == 200) {
// If the server did return a 200 OK response,
// then parse the JSON.
if(response.body.isNotEmpty) {
json.decode(response.body);
}
return User.fromJson(jsonDecode(response.body));
} else {
// If the server did not return a 200 OK response,
// then throw an exception.
throw Exception('Failed to load user');
}
}
And of course ,I got my form with 2 inputs Email and password .

Answer 1

From what I understand, I think you want to authenticate your user in the api. This page of the documentation is very easy to understand. If the user credentials match, you could return the user and create a token with laravel sanctum or Passport for the further requests for example :
// With laravel santum
if(Auth::attempt($signInRequest->only(['email', 'password']), true))
{
$user = Auth::user();
$token = $user->createToken($signInRequest->input('device_name'))->plainTextToken;
return response()->json([
'user' => $user,
'token' => $token
]);
}
return response()->json(['message' => 'Auth failed'], 401);