opentelemetry-java-instrume.../instrumentation/grpc-1.6/library/README.md

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# Library Instrumentation for gRPC 1.6.0+
Provides OpenTelemetry instrumentation for [gRPC](https://grpc.io/).
## Quickstart
### Add the following dependencies to your project
Replace `OPENTELEMETRY_VERSION` with the [latest release](https://search.maven.org/search?q=g:io.opentelemetry.instrumentation%20AND%20a:opentelemetry-grpc-1.6).
For Maven, add the following to your `pom.xml` dependencies:
```xml
<dependencies>
<dependency>
<groupId>io.opentelemetry.instrumentation</groupId>
<artifactId>opentelemetry-grpc-1.6</artifactId>
<version>OPENTELEMETRY_VERSION</version>
</dependency>
</dependencies>
```
For Gradle, add the following to your dependencies:
```groovy
implementation("io.opentelemetry.instrumentation:opentelemetry-grpc-1.6:OPENTELEMETRY_VERSION")
```
### Usage
The instrumentation library provides the implementation of `ClientInterceptor` and `ServerInterceptor` to provide OpenTelemetry-based spans and context propagation.
```java
// For client-side, attach the interceptor to your channel builder.
void configureClientInterceptor(Opentelemetry opentelemetry, NettyChannelBuilder nettyChannelBuilder) {
GrpcTelemetry grpcTelemetry = GrpcTelemetry.create(opentelemetry);
nettyChannelBuilder.intercept(grpcTelemetry.newClientInterceptor());
}
// For server-side, attatch the interceptor to your service.
ServerServiceDefinition configureServerInterceptor(Opentelemetry opentelemetry, ServerServiceDefinition serviceDefinition) {
GrpcTelemetry grpcTelemetry = GrpcTelemetry.create(opentelemetry);
return ServiceInterceptors.intercept(serviceDefinition, grpcTelemetry.newServerInterceptor());
}
```