# 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 io.opentelemetry.instrumentation opentelemetry-grpc-1.6 OPENTELEMETRY_VERSION ``` 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()); } ```