[15] 4.18 Handle timeouts (In TransferHandler and PositionHandler)

[shashi165]

Goal:
As a Switch
I would like the implementation for handling Time-outs of transfers be done in TransferHandler and PositionHandler
so that the time-outs are handled in central-services

Tasks:

• Test time-out handling in PositionHandler - [@shashi165]
  • make sure functionality works as expected - [@shashi165]
  • check if unit tests are there - [@shashi165]
  • check if integration tests are there
• fix the bug in ML_API_ADAPTER where we check the status of the notification message before sending the callback, We should send the callback irrespective of the status. - [@shashi165] - PR Feature/#320 fix bug in notification handler ml-api-adapter#44
• Implement Timeouts handling in TransferHandler
  • Unit tests
  • Integration tests
  • Code coverage
• Implement Timeouts handling in PositionHandler
  • Unit tests
  • Integration tests
  • Code coverage
• Test timeouts work end-to-end

Acceptance Criteria:

• TransferHandler to consume time-out message and update transfer state (to Aborted or Expired - make sure this state aligns with design)
• PositionHandler to consume time-out message and update Position of the Payer
• Test time-out handling end-to-end

Dependencies:

• Followed by [40] 4.16 Timeout Handler Implementation- Part2 #425

Pull Requests

• Feature/#314#320 Timeout Handler Implementation central-ledger#126 [@ggrg, @shashi165]
• https://github.com/mojaloop/docs/pull/68 [@ggrg]

Accountability:

• Owner
• QA/Review

[elnyry-sam-k]

Moving this over to next Sprint as this Sprint is overloaded (at 150%) and doesn't look like we'll get to this and had additional work in deploying 3.3 codebase and fixing bugs related to that (Items #403 , #392