Do OAuth refresh tokens expire?

Refresh tokens can expire, although their expiration time is usually much longer than access tokens. Refresh tokens can become invalid in other ways (for example if your user revokes your OAuth client app’s access — in this case all your refresh tokens and access tokens for that provider would be invalidated).

How long do OAuth refresh tokens last?

By default, access tokens are valid for 60 days and programmatic refresh tokens are valid for a year. The member must reauthorize your application when refresh tokens expire.

Do refresh tokens expire?

Refresh tokens may or may not have expiry time, depending on your provider they expire never, not as long as they’re recently used, in months or in hours. Relying on the fact that you will receive new refresh token with refreshed access token may be tricky. Timeout is not the only way in which token may become invalid.

Can a refresh token 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.

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How do I know if my refresh token is expired?

This can be done using the following steps:

  1. convert expires_in to an expire time (epoch, RFC-3339/ISO-8601 datetime, etc.)
  2. store the expire time.
  3. on each resource request, check the current time against the expire time and make a token refresh request before the resource request if the access_token has expired.

What if refresh token is stolen?

If the refresh token can be stolen, then so can the access token. With such an access token, the attacker can start making API calls. To make matters even more complicated, access tokens are often self-contained JWT tokens. Such tokens contain all the information needed for the API to make security decisions.

How long is auth token accessible?

Access token lifetime

By default, an access token for a custom API is valid for 86400 seconds (24 hours).

Why do refresh tokens expire?

While refresh tokens are often long-lived, the authorization server can invalidate them. Some of the reasons a refresh token may no longer be valid include: the authorization server has revoked the refresh token. the user has revoked their consent for authorization.

Why do OAuth tokens expire?

However, this means there is no way to expire those tokens directly, so instead, the tokens are issued with a short expiration time so that the application is forced to continually refresh them, giving the service a chance to revoke an application’s access if needed.

Should refresh token be stored in database?

You can replace the refresh token on each refresh, but remember that you need to store all expired refresh tokens until their lifetime is over. From a security perspective it makes sense to create a new token, but it is a trade off between security and amount of data in your database.

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Why are refresh tokens more secure?

The reason for that is the sensitivity of this piece of information. You can think of it as user credentials, since a Refresh Token allows a user to remain authenticated essentially forever. Therefore you cannot have this information in a browser, it must be stored securely.

How check expired OAuth token in C#?

The easiest way is to just try to call the service with it. It will reject it if it is expired and then you can request a new one. You can also keep the time you received the token and use the expires_in to calculate when it will approximately expire.

How long should refresh tokens live?

The refresh token is set with a very long expiration time of 200 days. If the traffic to this API is 10 requests/second, then it can generate as many as 864,000 tokens in a day.

How can I get Google OAuth refresh token?

Basic steps

  1. Obtain OAuth 2. 0 credentials from the Google API Console. …
  2. Obtain an access token from the Google Authorization Server. …
  3. Examine scopes of access granted by the user. …
  4. Send the access token to an API. …
  5. Refresh the access token, if necessary.

What is OAuth refresh token?

Refresh tokens are the credentials that can be used to acquire new access tokens. … When current access tokens expire or become invalid, the authorization server provides refresh tokens to the client to obtain new access token.