opentelemetry-java-instrume.../instrumentation/okhttp/okhttp-3.0/library/README.md

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# Library Instrumentation for OkHttp version 3.0 and higher
Provides OpenTelemetry instrumentation for [okhttp3](https://square.github.io/okhttp/).
## Quickstart
### Add these dependencies to your project
Replace `OPENTELEMETRY_VERSION` with the [latest
release](https://search.maven.org/search?q=g:io.opentelemetry.instrumentation%20AND%20a:opentelemetry-okhttp-3.0).
For Maven, add to your `pom.xml` dependencies:
```xml
<dependencies>
<dependency>
<groupId>io.opentelemetry.instrumentation</groupId>
<artifactId>opentelemetry-okhttp-3.0</artifactId>
<version>OPENTELEMETRY_VERSION</version>
</dependency>
</dependencies>
```
For Gradle, add to your dependencies:
```groovy
implementation("io.opentelemetry.instrumentation:opentelemetry-okhttp-3.0:OPENTELEMETRY_VERSION")
```
### Usage
The instrumentation library provides an OkHttp `Call.Factory` implementation that wraps
an instance of the `OkHttpClient` to provide OpenTelemetry-based spans and context
propagation.
```java
import io.opentelemetry.api.OpenTelemetry;
import io.opentelemetry.instrumentation.okhttp.v3_0.OkHttpTelemetry;
import okhttp3.Call;
import okhttp3.OkHttpClient;
import java.util.concurrent.ExecutorService;
public class OkHttpConfiguration {
//Use this Call.Factory implementation for making standard http client calls.
public Call.Factory createTracedClient(OpenTelemetry openTelemetry) {
return OkHttpTelemetry.builder(openTelemetry).build().newCallFactory(createClient());
}
//your configuration of the OkHttpClient goes here:
private OkHttpClient createClient() {
return new OkHttpClient.Builder().build();
}
}
```