@ms-cloudpack/telemetry

A library for telemetry that gets reported to Application Insights by using Open Telemetry standards.

Currently, this library only supports Tracing. Metrics and Logs can be added later when needed.

Example usage

1. Create a client:

const telemetryClient = new TelemetryClient({
  serviceNamespace: 'cloudpack',
  serviceName: 'cli',
  productVersion: '1.2.3',
  instrumentationKey: '<Application insights Instrumentation Key>',
  logLevel: 'verbose',
});

2. Add shared attributes

telemetryClient.setSharedSpanAttribute('sessionId', 'my-session-id');

These attributes will get added to all spans.

3. Get the tracer

const tracer = telemetryClient.getTracer();

4. Create a span / add events / end the span

const span = tracer.createSpan('my-unit-of-work');
// do work
span.addEvent('my-event', { myCustomAttribute: 'my-custom-value' });

try {
  // do more work
} catch (err) {
  span.recordException(err);
}

// end the span when the unit-of-work completed.
span.end();

Lear more about spans

5. Shutdown TelemetryClient before application exists

telemetryClient.shutdown();

• This will force flush all the remaining data to remote servers and prevent more data to be collected.
• Make sure that all spans have been ended before shuting down the telemetry client