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ADR-008-ui-reactivity.md

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ADR-008: UI reactivity

Date:

2024-09-26

Status:

Accepted

Context:

For Q26, we need to ensure a responsive UI. Some calls, especially external ones, may be long running or costly and lead to a delay in the UI.

Decision:

  • Whenever the UI triggers long-running calls, they need to be decoupled from the long-running threads.
  • We do this using queues, making them asynchronous calls.
  • Costly operations like matching should run periodically in the background.

Consequences:

The UI design to consider failures and failure messaging to the user more carefully.

Strengthened characteristics:

  • Responsiveness
  • Failure-tolerance

Weakened characteristics:

  • Testability (more cases of message ordering are possible)