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Can refresh tokens be reused?
When a client uses a refresh token, it always receives a new refresh token for next time. As a result, refresh tokens are only used once. In these scenarios, the reuse of a refresh token triggers all kinds of alarms with the authorization server.
Can refresh token be used multiple times?
2 Answers. Refresh tokens never expire, unless revoked by the user. You should store it safely and permanently. You should definitely not go back and get new refresh tokens over and over, because only a certain number can be understanding per user/app combination, and eventually the older ones will stop working.
How long are refresh tokens valid?
for 60 days
A Refresh Token is valid for 60 days and can be used to obtain a new Access Token and Refresh Token only once. If the Access Token and Refresh Token are not refreshed within 60 days, the user will need to be re-authorized.
What happens if you do not get a refresh token?
If you do not get back a new refresh token, then it means your existing refresh token will continue to work when the new access token expires. Keep in mind that at any point the user can revoke an application , so your application needs to be able to handle the case when refreshing the access token also fails.
What happens when you use an expired access token?
If the user uses an expired access token, the session is considered inactive and a new access token is required. Whether this token can be obtained with a refresh token or a new authentication round is required is defined by the requirements of the development team.
How are refresh tokens protected in OAuth2?
The OAuth2 token endpoint (/oauth/token) handles issuing of all types of grants (password and refresh tokens). All other endpoints are protected by the OAuth2 middleware that checks for the access token.
Is there way to cache refresh tokens in azure?
The Azure AD Authentication Library (ADAL) automatically caches tokens obtained from Azure AD, including refresh tokens. ADAL provides a default token cache implementation. However, this token cache is intended for native client apps, and is not suitable for web apps: It is a static instance, and not thread safe.