# @opentelemetry/tracing

> OpenTelemetry Tracing

Latest version **0.24.0** (published 2021-07-28) · Apache-2.0 license · 0 weekly downloads

> **Deprecated.** This package is deprecated.

## Install

```sh
npm install @opentelemetry/tracing
pnpm add @opentelemetry/tracing
yarn add @opentelemetry/tracing
bun add @opentelemetry/tracing
```

## Health

**Score 10/100 (F)** — status: deprecated.

Negative: deprecated.

## Facts

| | |
|---|---|
| Version | 0.24.0 |
| Published | 2021-07-28 |
| First published | 2019-10-08 |
| Weekly downloads | 0 |
| License | Apache-2.0 |
| TypeScript types | bundled |
| Module format | ESM + CommonJS |
| Node | >=8.0.0 |
| Dependencies | 4 |
| Unpacked size | 224.9 KB |
| Known vulnerabilities | 0 (+1 in 1 direct dependencies) |
| Install scripts | no |
| GitHub stars | 3458 |
| Author | OpenTelemetry Authors |
| Maintainers | mayurkale22, bogdandrutu, dyladan, obecny |
| Keywords | opentelemetry, nodejs, tracing, profiling, metrics, stats |

## Links

- npm: https://www.npmjs.com/package/@opentelemetry/tracing
- Repository: https://github.com/open-telemetry/opentelemetry-js
- Homepage: https://github.com/open-telemetry/opentelemetry-js#readme
- Issues: https://github.com/open-telemetry/opentelemetry-js/issues
- npm.io page: https://npm.io/package/@opentelemetry/tracing

## Dependencies (4)

- [lodash.merge](https://npm.io/package/lodash.merge.md) ^4.6.2
- [@opentelemetry/core](https://npm.io/package/@opentelemetry/core.md) 0.24.0
- [@opentelemetry/resources](https://npm.io/package/@opentelemetry/resources.md) 0.24.0
- [@opentelemetry/semantic-conventions](https://npm.io/package/@opentelemetry/semantic-conventions.md) 0.24.0

## Recent versions

- 0.24.0 (latest) — 2021-07-28
- 0.24.1-alpha.1 (canary) — 2021-07-30
- 0.24.1-alpha.31 — 2021-07-28
- 0.23.1-alpha.28 — 2021-07-27
- 0.23.1-alpha.24 — 2021-07-25
- 0.23.1-alpha.23 — 2021-07-23
- 0.23.1-alpha.15 — 2021-07-17
- 0.23.1-alpha.3 — 2021-07-05
- 0.23.1-alpha.18 — 2021-07-02
- 0.23.0 — 2021-06-30
- 0.23.1-alpha.17 — 2021-06-30
- 0.22.1-alpha.16 — 2021-06-30
- 0.22.1-alpha.15 — 2021-06-30
- 0.22.1-alpha.13 — 2021-06-30
- 0.22.1-alpha.3 — 2021-06-23
- … 128 more at https://npm.io/package/@opentelemetry/tracing/versions

## README

# OpenTelemetry Tracing SDK

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

The `tracing` module contains the foundation for all tracing SDKs of [opentelemetry-js](https://github.com/open-telemetry/opentelemetry-js).

Used standalone, this module provides methods for manual instrumentation of code, offering full control over span creation for client-side JavaScript (browser) and Node.js.

It does **not** provide automated instrumentation of known libraries, context propagation for asynchronous invocations or distributed-context out-of-the-box.

For automated instrumentation for Node.js, please see
[@opentelemetry/node](https://github.com/open-telemetry/opentelemetry-js/tree/main/packages/opentelemetry-node).

## Installation

```bash
npm install --save @opentelemetry/api
npm install --save @opentelemetry/tracing
```

## Usage

```js
const opentelemetry = require('@opentelemetry/api');
const { BasicTracerProvider } = require('@opentelemetry/tracing');

// To start a trace, you first need to initialize the Tracer provider.
// NOTE: The default OpenTelemetry tracer provider does not record any tracing information.
//       Registering a working tracer provider allows the API methods to record traces.
new BasicTracerProvider().register();

// To create a span in a trace, we used the global singleton tracer to start a new span.
const span = opentelemetry.trace.getTracer('default').startSpan('foo');

// Set a span attribute
span.setAttribute('key', 'value');

// We must end the spans so they become available for exporting.
span.end();
```

## Config

Tracing configuration is a merge of user supplied configuration with both the default
configuration as specified in [config.ts](./src/config.ts) and an
environmentally configurable sampling (via `OTEL_TRACES_SAMPLER` and `OTEL_TRACES_SAMPLER_ARG`).

## Example

See [examples/basic-tracer-node](https://github.com/open-telemetry/opentelemetry-js/tree/main/examples/basic-tracer-node) for an end-to-end example, including exporting created spans.

## 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][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/blob/main/LICENSE
[license-image]: https://img.shields.io/badge/license-Apache_2.0-green.svg?style=flat
[dependencies-image]: https://status.david-dm.org/gh/open-telemetry/opentelemetry-js.svg?path=packages%2Fopentelemetry-tracing
[dependencies-url]: https://david-dm.org/open-telemetry/opentelemetry-js?path=packages%2Fopentelemetry-tracing
[devDependencies-image]: https://status.david-dm.org/gh/open-telemetry/opentelemetry-js.svg?path=packages%2Fopentelemetry-tracing&type=dev
[devDependencies-url]: https://david-dm.org/open-telemetry/opentelemetry-js?path=packages%2Fopentelemetry-tracing&type=dev
[npm-url]: https://www.npmjs.com/package/@opentelemetry/tracing
[npm-img]: https://badge.fury.io/js/%40opentelemetry%2Ftracing.svg

---
_Source: https://npm.io/package/@opentelemetry/tracing · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._