<dependency>
    <groupId>com.alibaba.csp</groupId>
    <artifactId>sentinel-spring-restclient-adapter</artifactId>
    <version>${sentinel.version}</version>
</dependency>

import com.alibaba.csp.sentinel.adapter.spring.restclient.SentinelRestClientInterceptor;
import org.springframework.web.client.RestClient;

// Create RestClient with Sentinel interceptor
RestClient restClient = RestClient.builder()
    .requestInterceptor(new SentinelRestClientInterceptor())
    .build();

// Use RestClient to send requests (protected by Sentinel)
String result = restClient.get()
    .uri("https://httpbin.org/get")
    .retrieve()
    .body(String.class);

import com.alibaba.csp.sentinel.adapter.spring.restclient.SentinelRestClientConfig;
import com.alibaba.csp.sentinel.adapter.spring.restclient.SentinelRestClientInterceptor;
import com.alibaba.csp.sentinel.adapter.spring.restclient.extractor.RestClientResourceExtractor;
import com.alibaba.csp.sentinel.adapter.spring.restclient.fallback.RestClientFallback;

// Custom resource name extractor
RestClientResourceExtractor customExtractor = request -> {
    // Example: normalize RESTful path parameters
    String path = request.getURI().getPath();
    if (path.matches("/users/\\d+")) {
        path = "/users/{id}";
    }
    return request.getMethod() + ":" + request.getURI().getHost() + path;
};

// Custom fallback: throw a custom exception when blocked
RestClientFallback customFallback = (request, body, execution, ex) -> {
    throw new RuntimeException("Service temporarily unavailable, please retry later", ex);
};

// Create configuration
SentinelRestClientConfig config = new SentinelRestClientConfig(
    "my-restclient:",  // Resource name prefix
    customExtractor,
    customFallback
);

// Create interceptor with custom configuration
RestClient restClient = RestClient.builder()
    .requestInterceptor(new SentinelRestClientInterceptor(config))
    .build();

import com.alibaba.csp.sentinel.slots.block.RuleConstant;
import com.alibaba.csp.sentinel.slots.block.flow.FlowRule;
import com.alibaba.csp.sentinel.slots.block.flow.FlowRuleManager;
import java.util.Collections;

// Configure flow control rule
FlowRule rule = new FlowRule("restclient:GET:https://httpbin.org/get");
rule.setGrade(RuleConstant.FLOW_GRADE_QPS);
rule.setCount(10); // Max 10 requests per second
rule.setLimitApp("default");

FlowRuleManager.loadRules(Collections.singletonList(rule));