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# OpenTelemetry-Go
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2021-03-01 00:08:33 +01:00
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[](https://github.com/open-telemetry/opentelemetry-go/actions?query=workflow%3Aci+branch%3Amain)
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2021-02-10 22:28:32 +01:00
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[](https://pkg.go.dev/go.opentelemetry.io/otel)
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[](https://goreportcard.com/report/go.opentelemetry.io/otel)
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[](https://gitter.im/open-telemetry/opentelemetry-go?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge)
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The Go [OpenTelemetry](https://opentelemetry.io/) implementation.
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## Project Status
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**Warning**: this project is currently in a pre-GA phase. Backwards
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incompatible changes may be introduced in subsequent minor version releases as
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we work to track the evolving OpenTelemetry specification and user feedback.
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Our progress towards a GA release candidate is tracked in [this project
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board](https://github.com/orgs/open-telemetry/projects/5). This release
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candidate will follow semantic versioning and will be released with a major
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version greater than zero.
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Progress and status specific to this repository is tracked in our local
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[project boards](https://github.com/open-telemetry/opentelemetry-go/projects)
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and
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[milestones](https://github.com/open-telemetry/opentelemetry-go/milestones).
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Project versioning information and stability guarantees can be found in the
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[versioning documentation](./VERSIONING.md).
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## Getting Started
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You can find a getting started guide on [opentelemetry.io](https://opentelemetry.io/docs/go/getting-started/).
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OpenTelemetry's goal is to provide a single set of APIs to capture distributed
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traces and metrics from your application and send them to an observability
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platform. This project allows you to do just that for applications written in
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Go. There are two steps to this process: instrument your application, and
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configure an exporter.
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### Instrumentation
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To start capturing distributed traces and metric events from your application
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it first needs to be instrumented. The easiest way to do this is by using an
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instrumentation library for your code. Be sure to check out [the officially
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supported instrumentation
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libraries](https://github.com/open-telemetry/opentelemetry-go-contrib/tree/main/instrumentation).
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If you need to extend the telemetry an instrumentation library provides or want
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to build your own instrumentation for your application directly you will need
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to use the
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[go.opentelemetry.io/otel/api](https://pkg.go.dev/go.opentelemetry.io/otel/api)
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package. The included [examples](./example/) are a good way to see some
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practical uses of this process.
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### Export
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Now that your application is instrumented to collect telemetry, it needs an
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export pipeline to send that telemetry to an observability platform.
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You can find officially supported exporters [here](./exporters/) and in the
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companion [contrib
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repository](https://github.com/open-telemetry/opentelemetry-go-contrib/tree/main/exporters/metric).
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Additionally, there are many vendor specific or 3rd party exporters for
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OpenTelemetry. These exporters are broken down by
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[trace](https://pkg.go.dev/go.opentelemetry.io/otel/sdk/export/trace?tab=importedby)
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and
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[metric](https://pkg.go.dev/go.opentelemetry.io/otel/sdk/export/metric?tab=importedby)
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support.
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## Contributing
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See the [contributing documentation](CONTRIBUTING.md).
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