How to get dummy google access token to test oauth google api

Question

Is there any way in which I can generate access token to test oauth for logging in with gmail?

I have created a google app, and got the client and secret ids.

Answer 1

If you just want to test out an API with any oauth token as stated in the question title (not necessarily one acquired from a test user login flow), then you could make curl calls using a service account and the oauth2l utility as outlined in GCP docs here:

https://cloud.google.com/service-usage/docs/getting-started

Similarly, you can grant permissions to the service account the same as you would a regular test user.