Spring Boot REST Controller Boilerplate Generator

import { GoogleGenAI } from '@google/genai';

const ai = new GoogleGenAI({ apiKey: process.env.GEMINI_API_KEY });

async function runPrompt(variables: Record<string, string>) {
  let promptText = `Generate a production-ready Spring Boot REST Controller in Java based on the following specification.

Resource / Entity Name: {{entity_name}}
Base Endpoint Path: {{base_path}}
Required Operations: {{operations}}

Requirements:
- Spring Web annotations (@RestController, @RequestMapping, @PostMapping, etc.)
- Request body validation using Jakarta Validation (@Valid, @NotNull)
- ResponseEntity wrappers with appropriate HTTP status codes
- Clean exception handling structure`;
  Object.entries(variables).forEach(([key, val]) => {
    promptText = promptText.replace(new RegExp(`{{\\s*${key}\\s*}}`, 'g'), val);
  });

  const response = await ai.models.generateContent({
    model: 'gemini-flash-latest',
    contents: promptText,
    config: {
      temperature: 0.7,
      systemInstruction: `You are a Principal Java Architect specializing in enterprise Spring Boot microservices, clean architecture, and REST API design.`,
    },
  });

  return response.text;
}