Authenticate Session for Rest Call Step 3:- Authenticate Session for Rest Call 1) For any Transaction API Call , you need to have a valid token obtained through this authentication API 2) The Timeout for this token is 10 minutes,if a rest api call has not been made for 10 mins the Token is invalidated on the server side and you have to request for a new one using this api URI:- /api/app/authenticate Content-Type:- application/json Method:- GET Request Header:- Attribute Description appkey The appkey obtained in Step 1( rest_uu ) password The password maintained for this app in Rest applications window Response Payload:- Attribute Description id Blank String error If there are errors in the appkey or password this field is populated, else it is blank msg If request is success, the login token is returned in this field Response Sample(Success):- { "id": "", "error": "", "msg": "e1TMMBDZUsCTOJVQJeiaKwW0" }