Spring HTTP Interface is an HTTP service as a Java interface with annotated methods for HTTP exchanges.
Add annotation @HttpInterface for @HttpExchange(s).
Add annotation @EnableHttpInterfaces for init beans with annotation @HttpInterface.
- Spring Framework 6/Spring Boot 3
- Java 17+
Annotation interface by @HttpInterface
@HttpInterface(baseUrl = "http://127.0.0.1:8080")
public interface GreetingService {
@GetExchange("/greeting")
Mono<String> greeting(@RequestParam String name);
}Use GreetingService to communicate with HTTP Server
@AllArgsConstructor
@RestController
public static class GreetingEndpoint {
private GreetingService greetingService;
@RequestMapping("/hello")
public Mono<String> greeting(@RequestParam String name) {
return greetingService.greeting(name);
}
@RequestMapping("/greeting")
public Mono<String> hello(@RequestParam String name) {
return Mono.just("Hello " + name);
}
}More about @HttpInterface
Use you own HttpServiceProxyFactory
@HttpInterface(proxyFactory = "myProxyFactory")
public interface GreetingService {
@GetExchange("/greeting")
Mono<String> greeting(@RequestParam String name);
}Use you own WebClient
@HttpInterface(httpExchangeAdapter = "myHttpExchangeAdapter")
public interface GreetingService {
@GetExchange("/greeting")
Mono<String> greeting(@RequestParam String name);
}