OpenTelemetry gRPC Instrumentation for Node.js

Note: This is an experimental package under active development. New releases may include breaking changes.

This module provides automatic instrumentation for @grpc/grpc-js. Currently, version 1.x of @grpc/grpc-js is supported.

For automatic instrumentation see the @opentelemetry/sdk-trace-node package.

Installation

npm install --save @opentelemetry/instrumentation-grpc

Usage

OpenTelemetry gRPC Instrumentation allows the user to automatically collect trace data and export them to the backend of choice, to give observability to distributed systems when working with (grpc-js).

To load a specific instrumentation (gRPC in this case), specify it in the Node Tracer's configuration.

const { NodeTracerProvider } = require('@opentelemetry/sdk-trace-node');
const { GrpcInstrumentation } = require('@opentelemetry/instrumentation-grpc');
const { registerInstrumentations } = require('@opentelemetry/instrumentation');

const provider = new NodeTracerProvider();

provider.addSpanProcessor(new SimpleSpanProcessor(new ConsoleSpanExporter()));
provider.register();

registerInstrumentations({
  instrumentations: [new GrpcInstrumentation()]
});

See examples/grpc-js for examples.

gRPC Instrumentation Options

gRPC instrumentation accepts the following configuration:

| Options | Type | Description | | -------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | | ignoreGrpcMethods | IgnoreMatcher[] | gRPC instrumentation will not trace any methods that match anything in this list. You may pass a string (case-insensitive match), a RegExp object, or a filter function. | | metadataToSpanAttributes | object | List of case insensitive metadata to convert to span attributes. Client and server (outgoing requests, incoming responses) metadata attributes will be converted to span attributes in the form of rpc.{request\response}.metadata.metadata_key, e.g. rpc.response.metadata.date |

Useful links

• For more information on OpenTelemetry, visit: https://opentelemetry.io/
• For more about OpenTelemetry JavaScript: https://github.com/open-telemetry/opentelemetry-js
• For help or feedback on this project, join us in GitHub Discussions

License

Apache 2.0 - See LICENSE for more information.