# Jaeger Exporter Example This is an example of how to use the Jaeger exporter. The application in `main.cc` initializes an `JaegerExporter` instance and uses it to register a tracer provider from the [OpenTelemetry SDK](https://github.com/open-telemetry/opentelemetry-cpp). The application then calls a `foo_library` which has been instrumented using the [OpenTelemetry API](https://github.com/open-telemetry/opentelemetry-cpp/tree/main/api). Resulting spans are exported to the Jaeger agent using the Jaeger exporter. Note that the Jaeger exporter connects to the agent at `localhost:6831` by default. Once you have the Collector running, see [CONTRIBUTING.md](../../CONTRIBUTING.md) for instructions on building and running the example.