What is the use of refresh token in oauth2?

To solve this problem, OAuth 2.0 introduced an artifact called a refresh token. A refresh token allows an application to obtain a new access token without prompting the user.

What is the concept of refresh token?

Once they expire, client applications can use a refresh token to “refresh” the access token. That is, a refresh token is a credential artifact that lets a client application get new access tokens without having to ask the user to log in again.

Why do we need both access and refresh tokens?

The idea of refresh tokens is that if an access token is compromised, because it is short-lived, the attacker has a limited window in which to abuse it. Refresh tokens, if compromised, are useless because the attacker requires the client id and secret in addition to the refresh token in order to gain an access token.

What is the purpose of OAuth refresh token?

A Refresh Token is a central part of OAuth, and consequently, OpenID Connect. It is a kind of token that can be used to get additional access tokens. It is a sort of “token granting token” in that it can be sent to the OAuth server to obtain new ones. Refresh tokens can be thought of like a password of sorts.

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How does refresh token work?

To use the refresh token, make a POST request to the service’s token endpoint with grant_type=refresh_token , and include the refresh token as well as the client credentials if required.

How long is refresh token valid?

The Refresh token has a sliding window that is valid for 14 days and refresh token’s validity is for 90 days.

Is refresh token necessary?

So why does a web application need a refresh token? The main reason to use refresh tokens in web applications is to reduce the lifetime of an access token. When a web application obtains an access token with a lifetime of five to 10 minutes, that token will likely expire while the user is using the application.

Should refresh token be stored in database?

Store refresh tokens in a secure location, such as a password-protected file system or an encrypted database. Limit access to users who need the tokens to make API calls. If you believe that a refresh token has been accessed by an unauthorized user, delete it and create a new one.

When should I use refresh tokens?

Refresh tokens are used to obtain a new access token when the current access token becomes invalid or expires, or to obtain additional access tokens with identical or narrower scope (access tokens may have a shorter lifetime and fewer permissions than authorized by the resource owner).

Does refresh token expire in oauth2?

Introduction. Refresh tokens are used to get a new access token when your current access token expires. For more information, see the OAuth 2.0 RFC. … By default, access tokens are valid for 60 days and programmatic refresh tokens are valid for a year.

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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.

Should refresh token be JWT?

js of JWT with refresh token: In this case they use a uid and it’s not a JWT. When they refresh the token they send the refresh token and the user. If you implement it as a JWT, you don’t need to send the user, because it be would inside the JWT.

How do I use Google refresh token?

At a high level, you follow five 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.

How do I check my refresh token?

6 Answers. If you’re looking to test your code, you don’t actually need to invalidate or expire the access token. Simply make a (say) Drive call with a null access token and you will receive the same 401 response that you would have got with an expired access token.