BAEL-6355 - OpenAI API with Spring Boot - review comment incorporated

spring-boot-modules/spring-boot-libraries-2/src/main/java/com/baeldung/openapi/controller/ChatController.java

@@ -23,12 +23,17 @@ public class ChatController {
     @Value("${openai.api.url}")
     private String apiUrl;
 
+    /**
+     * Creates a chat request and sends it to the OpenAI API
+     * Returns the first message from the API response
+     *
+     * @param prompt the prompt to send to the API
+     * @return first message from the API response
+     */
     @GetMapping("/chat")
     public String chat(@RequestParam String prompt) {
-        // create a request
         ChatRequest request = new ChatRequest(model, prompt);
 
-        // call the API
         ChatResponse response = restTemplate.postForObject(
                 apiUrl,
                 request,
@@ -38,7 +43,6 @@ public class ChatController {
             return "No response";
         }
 
-        // return the first response
         return response.getChoices().get(0).getMessage().getContent();
     }
 }