In file ResponseCode.java two codes are listed right now.

We might need more codes in the future and should add them now for:

401 https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/401
403 https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/403

418 https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/418

500 https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/500
501 https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/501