Final answer:
An authentication token is generated when a user logs into an app. It is used to verify the user's identity and grant them access to protected resources.
Step-by-step explanation:
An authentication token is a piece of code that is generated when a user logs into an app. It is used to verify the identity of the user and grant them access to protected resources within the app.
To obtain an authentication token, the user typically goes through an authentication process, such as providing a username and password. Once the user is authenticated, the app generates a token and sends it back to the user's device.
This token can then be included in subsequent requests made by the app to authenticate and authorize the user's access to different parts of the app or its resources.