OpenTelemetry Azure Functions Instrumentation for Node.js

Branch	Status	Support level	Node.js Versions
main		Preview	20, 18

This module provides automatic instrumentation for the @azure/functions module, which may be loaded using the @opentelemetry/sdk-trace-node package.

Compatible with OpenTelemetry JS API and SDK 1.0+.

Install

npm install --save @azure/functions-opentelemetry-instrumentation

Supported Versions

• @azure/functions: ^4.5.0

Usage

To load the instrumentation, specify it in the Node Tracer's configuration:

const { NodeTracerProvider } = require('@opentelemetry/sdk-trace-node');
const { registerInstrumentations } = require('@opentelemetry/instrumentation');
const { HttpInstrumentation } = require('@opentelemetry/instrumentation-http');
const { AzureFunctionsInstrumentation } = require('@azure/functions-opentelemetry-instrumentation');

const provider = new NodeTracerProvider();
provider.register();

registerInstrumentations({
  instrumentations: [
    // Azure Functions instrumentation expects HTTP layer to be instrumented
    new HttpInstrumentation(),
    new AzureFunctionsInstrumentation(),
  ],
});

Useful links

• For more information on OpenTelemetry, visit: https://opentelemetry.io/
• For more about OpenTelemetry JavaScript: https://github.com/open-telemetry/opentelemetry-js