Implementation Workflow

Phase 1: Initialize Workspace Environments

Establish independent Spring Boot projects for both the providing and consuming services, ensuring that all Maven or Gradle dependencies, including spring-boot-starter-web, are properly configured.

Phase 2: Define Provider API Endpoints

Within the provider application, construct a controller to expose RESTful resources.

@RestController
public class GreetingEndpoint {

    @RequestMapping(value = "/api/greet", method = RequestMethod.GET)
    public String generateGreeting() {
        return "Greetings from the provider!";
    }
}

Phase 3: Configure Consumer HTTP Client

In the consumer application, utilize a RestTemplate instance to dispatch requests to the provider's exposed URL.

public class ServiceConsumer {

    private final RestTemplate httpClient = new RestTemplate();

    public void fetchGreeting() {
        String providerUrl = "http://localhost:8080/api/greet";
        String result = httpClient.getForObject(providerUrl, String.class);
        System.out.println(result);
    }
}

Phase 4: Validate Cross-Service Connectivity

Launch both applications simultaneously. Trigger the consumer's request method to confirm that the provider responds successfully, verifying the console outputs the expected payload.