OpenTelemetry Node.js Installation

npm install @opentelemetry/sdk-node \
  @opentelemetry/api \
  @opentelemetry/sdk-trace-node \
  @opentelemetry/sdk-metrics \
  @opentelemetry/exporter-trace-otlp-proto \
  @opentelemetry/exporter-metrics-otlp-proto \
  @opentelemetry/auto-instrumentations-node \
  @opentelemetry/semantic-conventions \
  @opentelemetry/resources

const os = require("os");
const { NodeSDK } = require("@opentelemetry/sdk-node");
const { NodeTracerProvider } = require("@opentelemetry/sdk-trace-node");
const {
  PeriodicExportingMetricReader,
  AggregationTemporality,
} = require("@opentelemetry/sdk-metrics");
const { resourceFromAttributes } = require("@opentelemetry/resources");
const { ATTR_SERVICE_NAME } = require("@opentelemetry/semantic-conventions");
const {
  OTLPTraceExporter,
} = require("@opentelemetry/exporter-trace-otlp-proto");
const {
  OTLPMetricExporter,
} = require("@opentelemetry/exporter-metrics-otlp-proto");
const {
  getNodeAutoInstrumentations,
} = require("@opentelemetry/auto-instrumentations-node");

// Replace these values with your AppSignal application name, environment
// and push API key. These are used by the resource attributes configuration below.
const name = "My app";
const pushApiKey = "0000-0000-0000-0000";

const environment = process.env.NODE_ENV || "production";

// Set the name of the service that is being monitored. A common choice is the
// name of the framework used. This is used to group traces and metrics in AppSignal.
const serviceName = "My service name";

// Replace `http://localhost:8099` with the address of your AppSignal collector
// if it's running on another host.
const endpoint = "http://localhost:8099";

const revision = childProcess.execSync("git rev-parse --short HEAD").toString();

const resource = new resourceFromAttributes({
  "appsignal.config.name": name,
  "appsignal.config.environment": environment,
  "appsignal.config.push_api_key": "0000-0000-0000-0000",
  "appsignal.config.revision": revision,
  "appsignal.config.language_integration": "node.js",
  "appsignal.config.app_path": process.cwd(),
  "host.name": os.hostname(),
  [ATTR_SERVICE_NAME]: "My service name",
});

const sdk = new NodeSDK({
  resource,
  traceExporter: new OTLPTraceExporter({
    url: `${endpoint}/v1/traces`,
  }),
  metricReader: new PeriodicExportingMetricReader({
    exportIntervalMillis: 10000,
    exporter: new OTLPMetricExporter({
      url: `${endpoint}/v1/metrics`,
    }),
  }),
  instrumentations: [getNodeAutoInstrumentations()],
});

sdk.start();

node --require ./opentelemetry.cjs index.js

{
  // other configuration...
  "scripts": {
    "server": "node --require ./opentelemetry.cjs index.js"
  }
}

NODE_OPTIONS='--require ./appsignal.cjs' nest start