Learn to build scalable APIs, manage databases, and implement secure authentication systems.
Master the foundational principles for building robust backend systems with modern frameworks and best practices.
Design and implement scalable API endpoints using modern frameworks like Express.js, FastAPI, and Echo.
app.get('/users/:id', (req, res) => {
const user = users.find(u => u.id === parseInt(req.params.id))
if (!user) return res.status(404).json({ error: 'User not found' })
res.json(user)
})
Connect to SQL and NoSQL databases, optimize queries, and implement data caching solutions.
db.getCollection('users').find({
name: { $regex: 'John', $options: 'i' },
age: { $gt: 25 }
}).sort({ createdAt: -1 }).limit(10)
Implement secure authentication with JWT, OAuth2, and API keys for different application scenarios.
Backend development is essential for creating the logic and data structures that power web and mobile applications. Master backend skills to build secure, performant, and scalable systems.
Next Section →Explore microservices architecture, rate limiting, and performance optimization techniques for high-load systems.
Design loosely coupled microservices using gRPC, REST, or event-driven communication patterns.
version: '3'
services:
auth-service:
build: ./auth
ports: ["3001:3000"]
order-service:
build: ./orders
ports: ["3002:3000"]
volumes:
postgres_data:
Implement request rate limiting to protect against API abuse and DoS attacks.
const rateLimit = require('express-rate-limit');
const limiter = rateLimit({
windowMs: 15 * 60 * 1000,
max: 100,
message: 'Too many requests'
});
app.use('/api', limiter);
Implement Redis or in-memory caching to improve API performance and reduce database load.
function cacheMiddleware(req, res, next) {
const cacheKey = req.originalUrl;
let cached = cache.get(cacheKey);
if (cached) {
return res.json(JSON.parse(cached));
}
next();
}
In-depth guide to building backend applications with Express, MongoDB, and TypeScript.
Read GuideComplete guide to building REST APIs with Django, DRF, and PostgreSQL.
Practice Project