Getting access denied after keycloak login. I dont have any roles in my keycloak server

I am implementing Keycloak authorization to my Node.js application. I created a realm and a client inside of it. I don't have any roles either in realm or in client. I have a route "/test" which is protected with Keycloak.

My keycloak.json looks like this:

{
  "realm": "demo",
  "auth-server-url": "http://localhost:8080/auth",
  "ssl-required": "external",
  "resource": "myapp",
  "public-client": true,
  "confidential-port": 0
}

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