Null refresh token

[rodrigo.caldas]

We are refreshing the token using /oauth/token every time our app resumes and this has worked during dev. We are about to release the app to prod however our testers have raised that upon continue resuming of the app the refresh token then stops working. Upon investigation we found out this is caused by a null refresh token being returned from the API.

I’m thinking we are not doing this right and then auth0 gets upset and decides to stop giving us a new token?

Thanks

[michael.wolfrum]

Have you seen these older posts?

Calling RefreshTokenAsync() returns null refresh token

Background: Auth0.OidcClient.Core, Auth0.OidcClient.iOS, Auth0.OidcClient.Android (v3.1.2 for all) Xamarin Forms app Auth0Client is encapsulated in a service in my iOS and Android projects Calling LoginAsync() returns a refresh token successfully each time. Calling RefreshTokenAsync() does not return a new refresh token, and only returns null for that property. Is that the expected behavior?? Is calling RefreshTokenAsync() not supposed to return a new refresh token? Am I supposed to continue …

Refresh Token Result is null

I am using to auth0 to authenticate my Xamarin Forms application. I am able to authenticate and also get a refresh token. However, the following line always returns null. var refreshTokenResult = await _auth0Client.RefreshTokenAsync(refresh_token); Any idea why?

[konrad.sopala]

Thanks for contributing to this thread Michael!

[neurallogistix]

Hi Guys
I know it’s old, but if someone is coming here after googling it’s very simple.
In your Auth0 application settings tab → Refresh Token Rotation, set that on, so when you do a refreshtokenasync(oldrefreshtoken), this will return a new refreshtoken in the response.

If the setting is off you have to use the original refreshtoken as the parameter in refreshtokenasync(firstrefreshtokenreturned), that was returned during the login flow.

Also, if you are not getting any refereshtoken, make sure your API as offline_access turned on.

Hope it helps someone