Using OTLP gRPC for nodejs with Grafana Cloud Traces

tracing.js

/* tracing.js */
const grpc = require('@grpc/grpc-js');

// Require dependencies
const opentelemetry = require("@opentelemetry/sdk-node");
const { getNodeAutoInstrumentations } = require("@opentelemetry/auto-instrumentations-node");
const { OTLPTraceExporter } = require('@opentelemetry/exporter-trace-otlp-grpc');

const metadata = new grpc.Metadata();
// after "Basic", comes the output of:
// echo -n username:password | base64 -w 0
metadata.set('authorization', 'Basic MTIzNDU6dGhla2V5');

const exporter = new OTLPTraceExporter({
    url: 'tempo-us-central1.grafana.net:443',
    credentials: grpc.credentials.createSsl(),
    metadata,
  });

const sdk = new opentelemetry.NodeSDK({
  traceExporter: exporter,
  instrumentations: [getNodeAutoInstrumentations()]
});

sdk.start()

Use this tutorial, but instead of the tracing.js they provide, use the one from the Gist:

https://opentelemetry.io/docs/instrumentation/js/getting-started/nodejs/