Build a Website

Build a standalone web application that communicates to we web server using Web APIs. Some of the features/API calls the application will have are 1) Ask the operator for username/password, store it locally and securely, each API call with be signed with this API 2) Call an API to fetch a list of logged in users from server. 3) Allow operator to choose a user from the list and send the user a custom message. 4) Poll the server using API to check for response from user. 5) On receipt of response, archive that response in local storage, allow operator to view historical responses. 6) On receipt of expected response, call API to close conversation with user. 7) Handle bad network gracefully, without losing stage or data. 8) Clean modern design using latest design patterns. The API works using JSON and XML data payloads. Exact specification with test operator password will be given on start of project.