post https://{YOUR_SUBDOMAIN}.workbright.com/api/employees//sign_in_token
Generates a single-use token for signing in through a mobile application.
IMPORTANT SECURITY WARNING
You must safeguard your API key by only calling this endpoint from your backend servers, not from your mobile app.
Do not hardcode or bundle your private WorkBright API key in your mobile app in any way, or it may be exposed to network traffic sniffers or by simply decompiling your app.
The One-Time Authentication token remains valid for 30 minutes. If not used within 30 minutes, a new token must be generated for Authentication.
Once activated, the user's session will timeout after 1 hour of inactivity.
Obtain the employee ID using the List Employees endpoint.