To differentiate between access tokens and ID tokens in Azure Logic Apps, you need to understand their purposes and usage:
1. Purpose and Usage:
- Access Tokens: These are used for authorization, allowing access to specific resources or APIs. They contain permissions and scopes that define what actions can be performed on those resources. Access tokens are typically short-lived and can be refreshed using refresh tokens[1][2][3].
- ID Tokens: These are used for authentication, providing information about the user's identity. They contain claims such as user name, email, and other identifying details. ID tokens are often used within client applications to verify user identity and are not meant to be sent to APIs for resource access[1][2][5].
2. Validation and Consumption:
- Access Tokens: These are validated by APIs to ensure the bearer has the necessary permissions to access resources. They are sent between APIs to facilitate data access[1][2].
- ID Tokens: These are validated by client applications to confirm user identity. They are not sent to APIs for resource access but are used within the client application itself[1][5].
3. Issuance and Refresh:
- Access Tokens: Issued by an authorization server, they can be refreshed using refresh tokens to extend access without requiring user interaction[1][2].
- ID Tokens: Also issued by an authorization server, ID tokens are not directly refreshable but can be obtained anew when an access token is refreshed[3].
In Azure Logic Apps, when integrating with Azure AD B2C or other authentication systems, you would typically use access tokens to authenticate API calls and ID tokens to manage user sessions within your application logic[4][6].
To handle these tokens in Logic Apps, you would typically extract and validate them from HTTP headers or payloads, ensuring that access tokens are used for API calls and ID tokens are used for user authentication within your app logic[6].
Citations:
[1] https://www.descope.com/blog/post/id-token-vs-access-token
[2] https://learn.microsoft.com/en-us/azure/active-directory-b2c/tokens-overview
[3] https://www.youtube.com/watch?v=0k9zj-ZqrWM
[4] https://learn.microsoft.com/en-us/azure/logic-apps/authenticate-with-managed-identity
[5] https://oauth.net/id-tokens-vs-access-tokens/
[6] https://docs.azure.cn/en-us/logic-apps/logic-apps-custom-api-authentication
[7] https://auth0.com/blog/id-token-access-token-what-is-the-difference/
[8] https://community.auth0.com/t/id-token-and-access-token-what-is-the-difference/70028