Laravel: Handle TokenMismatchException

Written by Rich Banks on 19th May, 2016

I recently came across a few users leaving a form open for a long while and when processing it getting an ugly Token Mismatch Error.

Handling this error is very easy within Laravel but took me some time to figure out, so I thought I would write a very short article.

Open app/Exceptions/Handler.php in your preferred text editor. At the top of the file include:

use Illuminate\Session\TokenMismatchException;
use Redirect;

Then within the render method add:

if($e instanceof TokenMismatchException){
        return Redirect::back()->withInput()->withErrors(['Your session expired. Please try again!']);
}

Whenever a TokenMismatchException is thrown the user will be redirected back to the form with a short error message.