Deploy API server that can consume incoming messages from Gupshup

[dennyabrain]

Overview

1. Create an API endpoint where Gupshup server will push incoming messages to
2. Store incoming messages to a database
3. Store incoming messages to a queue

Acceptance criteria

• [ ] Quick Response time (~100-500ms)

  The optimal acknowledgment time is less than 100 milliseconds; nevertheless, we recognize that network delays might occur, hence 500-1000 milliseconds is the recommended acknowledgment time. The longer your response time, the more inbound messages and events will be delayed each time. source