Document JSON format
The Authentication object of the Source document is a subset of the full Authentication object in that it only uses the 'username' and 'password' fields.
Source Document
{ "username" : "string", // String "password" : "string", // String }
Note: The password field in the Authentication object is currently clear text. If the string value placed in password is clear text it is not encrypted by Infinit.e. Encryption of the password field is planned for a future release.