90 lines
2.9 KiB
Markdown
90 lines
2.9 KiB
Markdown
# Manual Instrumentation for Spring-Web
|
|
|
|
Provides OpenTelemetry instrumentation for Spring's RestTemplate.
|
|
|
|
## Quickstart
|
|
|
|
### Add these dependencies to your project.
|
|
|
|
Replace `SPRING_VERSION` with the version of spring you're using.
|
|
`Minimum version: 3.1`
|
|
|
|
Replace `OPENTELEMETRY_VERSION` with the latest stable [release](https://mvnrepository.com/artifact/io.opentelemetry).
|
|
`Minimum version: 0.17.0`
|
|
|
|
For Maven add to your `pom.xml`:
|
|
```xml
|
|
<dependencies>
|
|
<!-- opentelemetry -->
|
|
<dependency>
|
|
<groupId>io.opentelemetry.instrumentation</groupId>
|
|
<artifactId>opentelemetry-spring-web-3.1</artifactId>
|
|
<version>OPENTELEMETRY_VERSION</version>
|
|
</dependency>
|
|
|
|
<!-- provides opentelemetry-sdk -->
|
|
<dependency>
|
|
<groupId>io.opentelemetry</groupId>
|
|
<artifactId>opentelemetry-exporters-logging</artifactId>
|
|
<version>OPENTELEMETRY_VERSION</version>
|
|
</dependency>
|
|
|
|
<!-- required to instrument spring-web -->
|
|
<!-- this artifact should already be present in your application -->
|
|
<dependency>
|
|
<groupId>org.springframework</groupId>
|
|
<artifactId>spring-web</artifactId>
|
|
<version>SPRING_VERSION</version>
|
|
</dependency>
|
|
|
|
</dependencies>
|
|
```
|
|
|
|
For Gradle add to your dependencies:
|
|
```groovy
|
|
implementation("io.opentelemetry.instrumentation:opentelemetry-spring-web-3.1:OPENTELEMETRY_VERSION")
|
|
implementation("io.opentelemetry:opentelemetry-exporters-logging:OPENTELEMETRY_VERSION")
|
|
|
|
//this artifact should already be present in your application
|
|
implementation("org.springframework:spring-web:SPRING_VERSION")
|
|
```
|
|
|
|
### Features
|
|
|
|
#### RestTemplateInterceptor
|
|
|
|
RestTemplateInterceptor adds OpenTelemetry client spans to requests sent using RestTemplate by implementing the [ClientHttpRequestInterceptor](https://docs.spring.io/spring/docs/current/javadoc-api/org/springframework/http/client/ClientHttpRequestInterceptor.html)
|
|
interface. An example is shown below:
|
|
|
|
##### Usage
|
|
|
|
```java
|
|
|
|
import io.opentelemetry.instrumentation.spring.httpclients.RestTemplateInterceptor;
|
|
import io.opentelemetry.api.OpenTelemetry;
|
|
|
|
import org.springframework.beans.factory.annotation.Autowired;
|
|
import org.springframework.context.annotation.Bean;
|
|
import org.springframework.context.annotation.Configuration;
|
|
import org.springframework.http.client.ClientHttpRequestInterceptor;
|
|
import org.springframework.web.client.RestTemplate;
|
|
|
|
@Configuration
|
|
public class RestTemplateConfig {
|
|
|
|
@Bean
|
|
public RestTemplate restTemplate(OpenTelemetry openTelemetry) {
|
|
|
|
RestTemplate restTemplate = new RestTemplate();
|
|
RestTemplateInterceptor restTemplateInterceptor = new RestTemplateInterceptor(openTelemetry);
|
|
restTemplate.getInterceptors().add(restTemplateInterceptor);
|
|
|
|
return restTemplate;
|
|
}
|
|
}
|
|
```
|
|
|
|
### Starter Guide
|
|
|
|
Check out the opentelemetry [quick start](https://github.com/open-telemetry/opentelemetry-java/blob/master/QUICKSTART.md) to learn more about OpenTelemetry instrumentation.
|