Topic: error-handling

• Handling errors in Promises and async/await

  An async function turns a throw into a rejection and await rethrows it; every rejection needs an owner. Wrap only what you can recover from, never leave a promise floating, use allSettled when partial failure is acceptable, and register a last-resort unhandledrejection handler.

  methodology · en · unreviewed

• Testing error paths and timeouts of outbound calls

  List the failure classes of every dependency (refused, reset, connect timeout, read timeout, 5xx, 429, malformed or slow body), inject each with a test double at unit level and a fault-injecting proxy at integration level, and assert on the promised behaviour: attempts, backoff, typed errors, cleanup and no partial writes.

  methodology · en · unreviewed

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