How to refresh access token OAuth2.0

Good afternoon! I set up work with api, I get access_token, but after 24 hours it becomes invalid and I need to update it somehow, I have a refresh_token. Can you please tell me which model and which end point in the api is responsible for this? I did not find it in the documentation

As mentioned on Diaspora implements OpenID Connect, token refresh is described in

Note that proper discovery of the token endpoint should happen through

These days you should be able to find a client library implementations for OpenID Connect for pretty much any environment and I would highly recommend using these over rolling your own. We consider any incompatibilities with a widely used OpenID Connect client implementation as a bug.

Alternatively configuring an OAuth2.0 client with the data from the provider configuration response should also work reasonably well and handle things like token refresh (semi-)transparently for you.