How to emit metrics in TypeScript

Workers can emit metrics and traces. There are a few telemetry options that can be provided to Runtime.install. The common options are:

• metrics: { otel: { url } }: The URL of a gRPC OpenTelemetry collector.
• metrics: { prometheus: { bindAddress } }: Address on the Worker host that will have metrics for Prometheus to scrape.

To set up tracing of Workflows and Activities, use our opentelemetry-interceptors package.

  telemetryOptions: {
      metrics: {
        prometheus: { bindAddress: '0.0.0.0:9464' },
      },
      logging: { forward: { level: 'DEBUG' } },
    },