Authenticates the provided credentials and creates a user session.

Required Permission(s)

All of the following:

• A user group to which the user belongs must be granted access to the API key given in authorization header
• Must be running script from a valid source address as configured in API registration for the given API key

POST Auth/SignAppin For Pathfinder users only

• For Application-type and Local Users only
• Local Users can only use the Public API after they have first been scaffolded from Pathfinder
• Expected response on Condition Failure: 401 Unauthorized

OAuth with Bearer token

• To use OAuth sign-in, request an access_token using "Password Safe OAuth Proxy" API
• Set the following header: Authorization: Bearer [access_token]