How to Set access_type=offline in Spring Boot Security with OAuth Flow for Refresh Tokens

Learn how to configure `access_type=offline` in Spring Boot Security with OAuth2 to generate refresh tokens for long-lasting access. --- This video is based on the question https://stackoverflow.com/q/69146220/ asked by the user 'Manish Chandra Ranga' ( https://stackoverflow.com/u/9668985/ ) and on the answer https://stackoverflow.com/a/69146396/ provided by the user 'Manish Chandra Ranga' ( https://stackoverflow.com/u/9668985/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions. Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: How to set access_type=offline using spring boot security and oauth flow to generate a refresh tokenn Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/licensing The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/by-sa/4.0/ ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/by-sa/4.0/ ) license. If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com. --- How to Set access_type=offline in Spring Boot Security with OAuth Flow for Refresh Tokens Integrating your Spring Boot application with Google's OAuth2 for authentication can be daunting, especially when it comes to handling access tokens and refresh tokens. One of the key configurations you may need to set is access_type=offline, which allows your application to request a refresh token. In this guide, we'll explore how to set this configuration properly and ensure you're able to obtain refresh tokens with your OAuth flow. Understanding the Problem When you set up OAuth2 authentication with Google, it is common to need a refresh token in addition to an access token. The refresh token allows your application to request a new access token without requiring the user to re-authenticate, which is particularly useful for applications needing to access user data over longer periods of time. The Challenge In your current setup with Spring Boot Security and OAuth2, you’ve noticed that even after following the standard procedure, you're unable to receive a refresh token when using the authorization code to generate an access token. The issue lies in the configuration of the authorizationUri as well as the request parameters being passed during the OAuth2 flow. Solution Overview The solution to obtaining a refresh token in your Spring Boot application involves modifying the authorizationUri to include the correct parameters. Here’s a breakdown of how to properly configure your OAuth2 client registration to ensure that the access_type is set to offline. Step-by-Step Configuration Update the Authorization URI: You need to append the access_type=offline and prompt=consent parameters to your authorization URI. This informs Google that your application wishes to request a refresh token. Here is how to update your googleClientRegistration() method: [[See Video to Reveal this Text or Code Snippet]] Explanation of the Changes access_type=offline: This tells Google that your application is requesting the ability to obtain a refresh token. prompt=consent: This forces the user to re-consent to the requested scopes, which is necessary for obtaining a refresh token if the user has previously granted permissions without selecting offline access. Final Thoughts Using the configuration above, your Spring Boot application will now be able to successfully request a refresh token from Google's OAuth2 API. By ensuring that the authorizationUri includes the necessary parameters, you can achieve a long-lasting and effective authentication flow for your users. If you follow this guide and update your settings as instructed, you should be well on your way to managing user data access securely and efficiently. Happy coding!