Support Spring's new RestClient with auto configuration (#3198)

CHANGELOG.md

@@ -1,5 +1,11 @@
 # Changelog
 
+## Unreleased
+
+### Features
+
+- Add support for Spring Rest Client ([#3199](https://github.com/getsentry/sentry-java/pull/3199))
+
 ## 7.6.0
 
 ### Features

sentry-samples/sentry-samples-spring-boot-jakarta/src/main/java/io/sentry/samples/spring/boot/jakarta/SentryDemoApplication.java

@@ -14,6 +14,7 @@
 import org.springframework.scheduling.quartz.CronTriggerFactoryBean;
 import org.springframework.scheduling.quartz.JobDetailFactoryBean;
 import org.springframework.scheduling.quartz.SimpleTriggerFactoryBean;
+import org.springframework.web.client.RestClient;
 import org.springframework.web.client.RestTemplate;
 import org.springframework.web.reactive.function.client.WebClient;
 
@@ -34,6 +35,11 @@ WebClient webClient(WebClient.Builder builder) {
     return builder.build();
   }
 
+  @Bean
+  RestClient restClient(RestClient.Builder builder) {
+    return builder.build();
+  }
+
   @Bean
   public JobDetailFactoryBean jobDetail() {
     JobDetailFactoryBean jobDetailFactory = new JobDetailFactoryBean();

sentry-samples/sentry-samples-spring-boot-jakarta/src/main/java/io/sentry/samples/spring/boot/jakarta/TodoController.java

@@ -4,6 +4,7 @@
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.client.RestClient;
 import org.springframework.web.client.RestTemplate;
 import org.springframework.web.reactive.function.client.WebClient;
 import reactor.core.publisher.Hooks;
@@ -14,10 +15,12 @@
 public class TodoController {
   private final RestTemplate restTemplate;
   private final WebClient webClient;
+  private final RestClient restClient;
 
-  public TodoController(RestTemplate restTemplate, WebClient webClient) {
+  public TodoController(RestTemplate restTemplate, WebClient webClient, RestClient restClient) {
     this.restTemplate = restTemplate;
     this.webClient = webClient;
+    this.restClient = restClient;
   }
 
   @GetMapping("/todo/{id}")
@@ -42,4 +45,13 @@ Todo todoWebClient(@PathVariable Long id) {
                             .map(response -> response)))
         .block();
   }
+
+  @GetMapping("/todo-restclient/{id}")
+  Todo todoRestClient(@PathVariable Long id) {
+    return restClient
+        .get()
+        .uri("https://jsonplaceholder.typicode.com/todos/{id}", id)
+        .retrieve()
+        .body(Todo.class);
+  }
 }

sentry-spring-boot-jakarta/src/main/java/io/sentry/spring/boot/jakarta/SentryAutoConfiguration.java

@@ -51,6 +51,7 @@
 import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication;
+import org.springframework.boot.autoconfigure.web.client.RestClientAutoConfiguration;
 import org.springframework.boot.autoconfigure.web.client.RestTemplateAutoConfiguration;
 import org.springframework.boot.autoconfigure.web.reactive.function.client.WebClientAutoConfiguration;
 import org.springframework.boot.context.properties.EnableConfigurationProperties;
@@ -65,6 +66,7 @@
 import org.springframework.graphql.execution.DataFetcherExceptionResolverAdapter;
 import org.springframework.scheduling.quartz.SchedulerFactoryBean;
 import org.springframework.security.core.context.SecurityContextHolder;
+import org.springframework.web.client.RestClient;
 import org.springframework.web.client.RestTemplate;
 import org.springframework.web.reactive.function.client.WebClient;
 import org.springframework.web.servlet.HandlerExceptionResolver;
@@ -357,6 +359,17 @@ public SentrySpanRestTemplateCustomizer sentrySpanRestTemplateCustomizer(IHub hu
       }
     }
 
+    @Configuration(proxyBeanMethods = false)
+    @AutoConfigureBefore(RestClientAutoConfiguration.class)
+    @ConditionalOnClass(RestClient.class)
+    @Open
+    static class SentrySpanRestClientConfiguration {
+      @Bean
+      public SentrySpanRestClientCustomizer sentrySpanRestClientCustomizer(IHub hub) {
+        return new SentrySpanRestClientCustomizer(hub);
+      }
+    }
+
     @Configuration(proxyBeanMethods = false)
     @AutoConfigureBefore(WebClientAutoConfiguration.class)
     @ConditionalOnClass(WebClient.class)

sentry-spring-boot-jakarta/src/main/java/io/sentry/spring/boot/jakarta/SentrySpanRestClientCustomizer.java

@@ -0,0 +1,30 @@
+package io.sentry.spring.boot.jakarta;
+
+import com.jakewharton.nopen.annotation.Open;
+import io.sentry.IHub;
+import io.sentry.spring.jakarta.tracing.SentrySpanClientHttpRequestInterceptor;
+import org.jetbrains.annotations.NotNull;
+import org.springframework.boot.web.client.RestClientCustomizer;
+import org.springframework.web.client.RestClient;
+
+@Open
+class SentrySpanRestClientCustomizer implements RestClientCustomizer {
+  private final @NotNull SentrySpanClientHttpRequestInterceptor interceptor;
+
+  public SentrySpanRestClientCustomizer(final @NotNull IHub hub) {
+    this.interceptor = new SentrySpanClientHttpRequestInterceptor(hub, false);
+  }
+
+  @Override
+  public void customize(final @NotNull RestClient.Builder restClientBuilder) {
+    restClientBuilder.requestInterceptors(
+        clientHttpRequestInterceptors -> {
+          // As the SentrySpanClientHttpRequestInterceptor is being created in this class, this
+          // might not work
+          // if somebody registers it from an outside.
+          if (!clientHttpRequestInterceptors.contains(interceptor)) {
+            clientHttpRequestInterceptors.add(interceptor);
+          }
+        });
+  }
+}

sentry-spring-boot-jakarta/src/test/kotlin/io/sentry/spring/boot/jakarta/SentryAutoConfigurationTest.kt

@@ -61,6 +61,7 @@ import org.springframework.core.Ordered
 import org.springframework.core.annotation.Order
 import org.springframework.scheduling.quartz.SchedulerFactoryBean
 import org.springframework.security.core.context.SecurityContextHolder
+import org.springframework.web.client.RestClient
 import org.springframework.web.client.RestTemplate
 import org.springframework.web.reactive.function.client.WebClient
 import org.springframework.web.servlet.HandlerExceptionResolver
@@ -649,6 +650,23 @@ class SentryAutoConfigurationTest {
             }
     }
 
+    @Test
+    fun `when tracing is enabled and RestClient is on the classpath, SentrySpanRestClientCustomizer bean is created`() {
+        contextRunner.withPropertyValues("sentry.dsn=http://key@localhost/proj", "sentry.traces-sample-rate=1.0")
+            .run {
+                assertThat(it).hasSingleBean(SentrySpanRestClientCustomizer::class.java)
+            }
+    }
+
+    @Test
+    fun `when tracing is enabled and RestClient is not on the classpath, SentrySpanRestClientCustomizer bean is not created`() {
+        contextRunner.withPropertyValues("sentry.dsn=http://key@localhost/proj", "sentry.traces-sample-rate=1.0")
+            .withClassLoader(FilteredClassLoader(RestClient::class.java))
+            .run {
+                assertThat(it).doesNotHaveBean(SentrySpanRestClientCustomizer::class.java)
+            }
+    }
+
     @Test
     fun `when tracing is enabled and WebClient is on the classpath, SentrySpanWebClientCustomizer bean is created`() {
         contextRunner.withPropertyValues("sentry.dsn=http://key@localhost/proj", "sentry.traces-sample-rate=1.0")