Backend API Development
Instructions
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Route Creation
- •Define RESTful routes (GET, POST, PUT, DELETE)
- •Group routes by resource
- •Use clear and consistent URL patterns
- •
Request & Response Handling
- •Parse request bodies, params, and query strings
- •Validate incoming data
- •Send structured JSON responses
- •Handle errors with proper HTTP status codes
- •
Database Connectivity
- •Connect to a database (SQL or NoSQL)
- •Implement CRUD operations
- •Use environment variables for credentials
- •Handle connection errors gracefully
Best Practices
- •Follow REST conventions
- •Keep controllers thin and logic modular
- •Use async/await for database operations
- •Never expose sensitive data in responses
- •Centralize error handling
Example Structure
js
// routes/user.routes.js
import express from "express";
import { getUsers, createUser } from "../controllers/user.controller.js";
const router = express.Router();
router.get("/users", getUsers);
router.post("/users", createUser);
export default router;