Add ALS timeout handler for getPartiesToAllProxies

[oderayi]

Goal:

As an adopter of Mojaloop building inter-connected schemes

I want to enhance ALS to have a timeout handler

so that parties lookup broadcasts to proxies can be timed out with callbacks sent to original requester

Acceptance Criteria:

• Verify that an approach is decided to implement the timeout handler; and reviewed by team:
  • Redis
  • Standard Timeout handler as used in Central Ledger
• Verify that a new timeout handler has been added.
• Verify that PUT callback sent to the original requester cancels the timeout.
• Verify that if a timeout occurs, then a PUT /parties/error callback is generated
• Verify that tests are added to test this functionality
  • Several simultaneous requests
  • Not all proxies responding with error; and still sending error callback

Complexity: <High|Medium|Low> > A short comment to remind the reason for the rating

Uncertainty: <High|Medium|Low> > A short comment to remind the reason for the rating

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Tasks:

• Implement timeout handler
• Update Proxy Cache library
• Add unit tests
• Add integration tests

Done

• Acceptance Criteria pass
• Designs are up-to date
• Unit Tests pass
• Integration Tests pass
• Code Style & Coverage meets standards
• Changes made to config (default.json) are broadcast to team and follow-up tasks added to update helm charts and other deployment config.
• TBD

Pull Requests:

• feat(mojaloop/#4000): timeout handler account-lookup-service#489
• feat: add expiry key for als proxies parties lookup inter-scheme-proxy-cache-lib#9

Follow-up:

• N/A

Dependencies:

• N/A

Accountability:

• Owner: TBC
• QA/Review: TBC