OpenTelemetry Hapi Instrumentation for Node.js

[![NPM Published Version][npm-img]][npm-url]
[![Apache License][license-image]][license-image]

This module provides automatic instrumentation for the Hapi Framework(@hapi/hapi)package, which may be loaded using the @opentelemetry/sdk-trace-node package and is included in the @opentelemetry/auto-instrumentations-node bundle.

If total installation size is not constrained, it is recommended to use the @opentelemetry/auto-instrumentations-node bundle with https://www.npmjs.com/package/@opentelemetry/sdk-node" class="text-primary hover:underline" target="_blank" rel="noopener noreferrer">@opentelemetry/sdk-node for the most seamless instrumentation experience.

Compatible with OpenTelemetry JS API and SDK 1.0+.

Status

| Maturity | Component Owner | Compatibility |
|----------------------------------------------------|-------------------------------------------------------|-----------------------|
| Unmaintained | N/A | API 1.0+
SDK 1.0+ |

Installation

``bash
npm install --save @opentelemetry/instrumentation-hapi
`

$3

- @hapi/hapi versions >=17.0.0 <22

Usage

OpenTelemetry Hapi Instrumentation allows the user to automatically collect trace data and export them to their backend of choice, to give observability to distributed systems.

To load a specific instrumentation (Hapi in this case), specify it in the registerInstrumentations' configuration.

`js
const { NodeTracerProvider } = require('@opentelemetry/sdk-trace-node');
const { registerInstrumentations } = require('@opentelemetry/instrumentation');
const { HapiInstrumentation } = require('@opentelemetry/instrumentation-hapi');

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

registerInstrumentations({
instrumentations: [
new HapiInstrumentation(),
],
});
`

If instead you would just want to load a specific instrumentation only (hapi in this case);

`js
const { NodeTracerProvider } = require('@opentelemetry/sdk-trace-node');
const { HapiInstrumentation } = require('@opentelemetry/instrumentation-hapi');
const provider = new NodeTracerProvider();
provider.register();

const hapiInstrumentation = new HapiInstrumentation();
hapiInstrumentation.setTracerProvider(provider);
`

See examples/hapi for a short example using Hapi

Hapi Instrumentation Support

This package provides automatic tracing for hapi server routes and request lifecycle extensions defined either directly or via a Hapi plugin.

Semantic Conventions

Prior to version 0.48.0, this instrumentation created spans targeting an experimental semantic convention Version 1.7.0.

HTTP semantic conventions (semconv) were stabilized in v1.23.0, and a migration process was defined. instrumentation-hapi versions 0.48.0 and later include support for migrating to stable HTTP semantic conventions, as described below. The intent is to provide an approximate 6 month time window for users of this instrumentation to migrate to the new HTTP semconv, after which a new minor version will use the new semconv by default and drop support for the old semconv. See the HTTP semconv migration plan for OpenTelemetry JS instrumentations.

To select which semconv version(s) is emitted from this instrumentation, use the OTEL_SEMCONV_STABILITY_OPT_IN environment variable.

- http: emit the new (stable) v1.23.0+ semantics
- http/dup: emit both the old v1.7.0 and the new (stable) v1.23.0+ semantics
- By default, if OTEL_SEMCONV_STABILITY_OPT_IN includes neither of the above tokens, the old v1.7.0 semconv is used.

$3

The following semconv attributes are collected on hapi route spans:

| v1.7.0 semconv | v1.23.0 semconv | Notes |
|----------------|-----------------------|---------------------------------------------|
| http.method | http.request.method | HTTP request method |
| http.route | http.route (same) | Route assigned to handler. Ex: /users/:id` |

Useful links

- For more information on OpenTelemetry, visit:
- For more about OpenTelemetry JavaScript:
- For help or feedback on this project, join us in [GitHub Discussions][discussions-url]

License

Apache 2.0 - See [LICENSE][license-url] for more information.

[discussions-url]: https://github.com/open-telemetry/opentelemetry-js/discussions
[license-url]: https://github.com/open-telemetry/opentelemetry-js-contrib/blob/main/LICENSE
[license-image]: https://img.shields.io/badge/license-Apache_2.0-green.svg?style=flat
[npm-url]: https://www.npmjs.com/package/@opentelemetry/instrumentation-hapi
[npm-img]: https://badge.fury.io/js/%40opentelemetry%2Finstrumentation-hapi.svg