koel/app/Http/Middleware/GetUserFromToken.php

<?php

namespace App\Http\Middleware;

use Closure;
use Illuminate\Http\Request;
use Tymon\JWTAuth\Exceptions\JWTException;
use Tymon\JWTAuth\Exceptions\TokenExpiredException;

class GetUserFromToken extends BaseMiddleware
{
    /**
     * Handle an incoming request.
     *
     * @param 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', 401);
        }

        try {
            $user = $this->auth->authenticate($token);
        } catch (TokenExpiredException $e) {
            return $this->respond('tymon.jwt.expired', 'token_expired', $e->getStatusCode(), [$e]);
        } catch (JWTException $e) {
            return $this->respond('tymon.jwt.invalid', 'token_invalid', $e->getStatusCode(), [$e]);
        }

        if (!$user) {
            return $this->respond('tymon.jwt.user_not_found', 'user_not_found', 401);
        }

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

        return $next($request);
    }
}