Jwt-auth: How to customize the token expired message

[Harrrrry]

Hi, I am using laravel web service and when token is expired web service return an error like
{"error":"token_expired"} but i want to generate message like {"succes":0,"error":"token expired, please login again."}

[tdhsmith]

Create your own version of the middleware, change this line for jwt.auth and this one for jwt.refresh, and apply them to your routes to replace the originals.

[Harrrrry]

ok, but i can change the message but how to include the success = 0 part
return $this->respond('tymon.jwt.expired', 'token expired, please login again.', $e->getStatusCode(), [$e]);

[mallardduck]

Bruh, it seems like you just need to familiarize yourself further with Laravel. Cause the question your asking doesn't seem to be specific to JWT. Overriding exceptions and handling them in a way that you want is built into Laravel.

Personally I think this should be implemented in your Handler.php file like this:

        if ($e instanceof Tymon\JWTAuth\Exceptions\TokenExpiredException) {
            return response()->json(['token_expired'], $e->getStatusCode());
        }

But it seems that you want specifics so it'd be something like this:

        if ($e instanceof Tymon\JWTAuth\Exceptions\TokenExpiredException) {
            return response()->json(['success' => 0, 'error' => 'token_expired'], $e->getStatusCode());
        }

The specifics of where you put this, if you're not familiar, can be found here: https://laravel.com/docs/5.1/errors

[Harrrrry]

@mallardduck, @tdhsmith Thanks

[aqib-git]

You can create your own middleware e.g JWTAuth then copy code from Tymon\JWTAuth\Middleware\GetUserFromToken like this

namespace App\Http\Middleware;

use Closure;
use Tymon\JWTAuth\Middleware\GetUserFromToken;
use Tymon\JWTAuth\Exceptions\JWTException;
use Tymon\JWTAuth\Exceptions\TokenExpiredException;

class JWTCheck extends GetUserFromToken
{
    /**
     * Handle an incoming request.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  \Closure  $next
     * @return mixed
     */
    public function handle($request, \Closure $next)
    {
        if (! $token = $this->auth->setRequest($request)->getToken()) {
            return $this->respond('tymon.jwt.absent', 'token_not_provided', 400);
        }

        try {
            $user = $this->auth->authenticate($token);
        } catch (TokenExpiredException $e) {
            return response()->json([
                'meta' => [
                    'code' => 401, 
                    'error_type' => 'token_expired',
                    'error_message' => 'Please provide the correct credentials'
                ]], 401);
            //return $this->respond('tymon.jwt.expired', 'token_expired', $e->getStatusCode(), [$e]);
        } catch (JWTException $e) {
            return response()->json([
                'meta' => [
                    'code' => 401, 
                    'error_type' => 'token_invalid',
                    'error_message' => 'Please provide the correct token'
                ]], 401);
            //return $this->respond('tymon.jwt.invalid', 'token_invalid', $e->getStatusCode(), [$e]);
        }

        if (! $user) {
            return $this->respond('tymon.jwt.user_not_found', 'user_not_found', 404);
        }

        $this->events->fire('tymon.jwt.valid', $user);

        return $next($request);
    }
}

then change middleware in Kernel.php to your custom middleware.