Google oAuth callback error: localhost refused connetion

[hrishikesh]

@Check_Shi

If you mean to make this change in the URI in the Google cloud I have already tried it but I got a 400 error

Yes, the URL in Google Cloud needs to be

http://localhost:5678/rest/oauth2-credential/callback

@Check_Shi

Error 400: redirect_uri_mismatch

This error means that the URL configured in Google Cloud is not the same as the one n8n initiated a request from. n8n will send

http://localhost:5678/rest/oauth2-credential/callback

in the request, so the redirect URL in Google Cloud must be the same.

As long as Docker is running, and you’re able to access localhost:5678 locally, the callback URL should also work.