FilterLogEvents

Source: src/AWS/Logs/FilterLogEvents.ts

Runtime binding for logs:FilterLogEvents.

Bind this operation to a LogGroup inside a function runtime to get a callable that searches log events across all streams of the group, automatically injecting the log group name.

Reading Logs

Search for a Marker

const filterLogEvents = yield* AWS.Logs.FilterLogEvents(logGroup);

const response = yield* filterLogEvents({
  filterPattern: '"ERROR"',
  limit: 100,
});

Wire into a Lambda Function

// Provide the FilterLogEventsHttp layer on the Function's init Effect.
export default SearchFunction.make(
  { main: import.meta.url, url: true },
  Effect.gen(function* () {
    const logGroup = yield* AWS.Logs.LogGroup("AppLogs", {});
    const filterLogEvents = yield* AWS.Logs.FilterLogEvents(logGroup);
    return {
      fetch: Effect.gen(function* () {
        const response = yield* filterLogEvents({ filterPattern: '"ERROR"' });
        return HttpServerResponse.json({ events: response.events });
      }),
    };
  }).pipe(Effect.provide(AWS.Logs.FilterLogEventsHttp)),
);