csrf token error in the Laravel

Question

I’m getting the bug

Tokenmismatchexception in Verifycsrftoken.php (line 68)

when I submit the following view information. Detail is that in all my views I have csrf_token because of the Blade template. Anyway, this is my view:

@extends('layouts.app')

@section('content')
<div class="container">

    <h1>Funções do <b>{{$user->name}}</b></h1><br>

    <form action="{{url("/users/{$user->id}/roles/salva")}}" method="POST">
        <div class="form-group">
           <label for="exampleFormControlSelect1" class="col-md-4 control-label">Access Level</label>
           <select class="form-control" id="exampleFormControlSelect1">
               <option name="role_id" value="6">Viewer</option>
               <option name="role_id" value="5">Manager</option>
               <option name="role_id" value="3">Admin</option>
           </select>    
        </div>
        <button type="submit" class="btn btn-success">Adicionar Função</button>
    </form>
    <br>
    <form action="/users" method="get">   
        <button class="btn btn-danger">Voltar</button>
    </form>
</div>
@endsection

I don’t know yet if this dropdown will work but it doesn’t matter for now (I think)

@csrf in text form in view

Answer 1

You should put inside your form @csrf.

@extends('layouts.app')

@section('content')
<div class="container">

    <h1>Funções do <b>{{$user->name}}</b></h1><br>

    <form action="{{url("/users/{$user->id}/roles/salva")}}" method="POST">
         @csrf
        <div class="form-group">
           <label for="exampleFormControlSelect1" class="col-md-4 control-label">Access Level</label>
           <select class="form-control" id="exampleFormControlSelect1">
               <option name="role_id" value="6">Viewer</option>
               <option name="role_id" value="5">Manager</option>
               <option name="role_id" value="3">Admin</option>
           </select>    
        </div>
        <button type="submit" class="btn btn-success">Adicionar Função</button>
    </form>
    <br>
    <form action="/users" method="get">   
        <button class="btn btn-danger">Voltar</button>
    </form>
</div>
@endsection

Another way of declaring csrf is:

{{ csrf_field() }}

Source: CSRF Protection