TL;DR: For a small Node.js Express error tracking setup rolling out a property-pricing rule, capture backend exceptions with request context, release, environment, and an allowed user identifier, then triage by error group instead of paging on every event. Infrai fits when a stable REST contract matters more than an integrated incident suite: the application keeps one plain HTTP contract even when the provider behind a capability changes, and public discovery plus runnable examples in 10 languag...