Login is required when entering the API framework. This method redirects the user to the project's callback URL (this is the "homepage" for the API developer's application as a "silent," or non-registered, SharedBook user), adding the authToken as a parameter to the callback URL.
The authToken is valid for 60 minutes. After that, the user must login again.
Related methods: auth/getSessionToken
Request Parameters (Required)
The response is an HTTP redirect to the callback URL provided by the client during registration, followed by an 'authToken' parameter:
(See the Method Syntax page for details.)