Adding TymonJWT to my project

I've been following along here:

https://jwt-auth.readthedocs.io/en/develop/quick-start/

When I have come to test my login endpoint, I am getting

"message": "",
    "exception": "Symfony\Component\HttpKernel\Exception\NotFoundHttpException",
    "file": "/Users/johnmichael/playground/laravel/choosday-api/vendor/laravel/framework/src/Illuminate/Routing/AbstractRouteCollection.php",
    "line": 43,