Getting TokenMismatchException in VerifyCsrfToken.php line 68 sometime

Can you post some code? What are you using to perform these requests? Where are you retrieving your token from?

hi, be sure to check if the csrf_token is being passed with the request, if you are using ajax request, it should be passed automatically by default in laravel.

Hello sorry for late reply this is my code:

HTML:

{{ Form::open(array('id'=>'login_form','class'=> 'panel p-a-4')) }}
            <label>
              <input type="email" name="email" placeholder="Email" />
            </label>
            <label>
              <input type="password" name="password" placeholder="Password" />
            </label>
            <label>
               Keep me logged in<input type="checkbox" checked />
            </label>
            <label>
              <button type="submit" id="signin_btn"><span>Login</span></button>
            </label>
{{ Form::close() }}

JAVASCRIPT:

$(document).ready(function(){
    $('#login_form').submit(function(ev){
        ev.preventDefault();
        $('#signin_btn > span').addClass('btn-loading');
        $('#login_errors').html('');
        $.ajax({
            type:"post",
            url:"{{url('/backend/login')}}",
            data:$('#login_form').serialize(),
            success:function(data){
                var result = JSON.parse(data);
                 $('#signin_btn > span').removeClass('btn-loading');
                if(result.result==0){
                    errors = "<ul>";
                    result.message.forEach(function(object) {
                        errors +='<li>'+object+'</li>'
                    })
                    errors += "</ul>";
                    show_response("error","Error",errors)
                }else{
                    if(result.response.type=='success'){
                        window.location.href = '{{url("backend/dashboard")}}';
                    }
                    else
                        show_response("error","Error","Incorrect email or password")
                }
            }
        }); 
    })  
})

PHP:

 public function login_submit(Request $request){
        $rules = array(
                'email'    => 'required|email',
                'password'    => 'required',
                
            );
       
           
        $validator = Validator::make(Input::all(), $rules);
        
        if ($validator->fails()) {
            $return['result']=0; 
            $return['message']=$validator->errors()->all(); 
            echo json_encode($return);
        } else {
             $credentials = array(
                'email'     => Input::get('email'),
                'password'  => Input::get('password')
                 );
            if (Auth::guard('admin')->attempt($credentials)) {
                $return['response']['type'] ='success'; 
                $return['response']['message']='Success!'; 
                echo json_encode($return);
            }else{
                $return['response']['type'] ='error'; 
                $return['response']['message']='Your username or password is incorrect'; 
                echo json_encode($return);

            }
        }
        
    }

use below code it might help

$(function(){

$('#login_form').on('submit',function(e){
    $.ajaxSetup({
        header:$('meta[name="_token"]').attr('content')
    })
    e.preventDefault(e);

        $.ajax({

        type:"POST",
        url:'/register',
        data:$(this).serialize(),
        dataType: 'json',
        success: function(data){
            console.log(data);
        },
        error: function(data){

        }
    })
    });
});

Try this:

{{ Form::open(array('id'=>'login_form','class'=> 'panel p-a-4')) }}
    {{ csrf_field() }}
            <label>
              <input type="email" name="email" placeholder="Email" />
            </label>
            <label>
              <input type="password" name="password" placeholder="Password" />
            </label>
            <label>
               Keep me logged in<input type="checkbox" checked />
            </label>
            <label>
              <button type="submit" id="signin_btn"><span>Login</span></button>
            </label>
{{ Form::close() }}

@silverxjohn The form open create the csrf field by itself you don't need to add the

{{ csrf_field() }}