A spring boot REST controller to connect to OpenAI API

OpenAIController.java

import org.springframework.ai.chat.prompt.Prompt;
import org.springframework.ai.openai.OpenAiChatModel;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

@RestController
@RequestMapping("/api/openai")
public class OpenAIController {

    @Autowired
    private OpenAiChatModel chatModel;

    public OpenAIController(OpenAiChatModel chatModel) {
        this.chatModel = chatModel;
    }

    @GetMapping("/chat")
    public String chat(@RequestParam String message) {
        Prompt prompt = new Prompt(message);
        return chatModel.call(prompt).getResult().getOutput().getContent();
    }
}