Next.js
/Advanced
System Design for Next.js Apps
Definition
The high-level process of architecting the infrastructure, databases, caching layers, and deployment strategies for a Next.js application to handle millions of users.
Explain Like I'm New
Drawing the 'blueprint' before building the skyscraper. It's deciding: 'Should we use a relational DB or NoSQL? Should we cache this at the Edge? Should we use Serverless functions or Docker containers? How do we handle millions of images?'
Real World Example
Designing Netflix. You need a CDN (Vercel Edge) to serve the UI instantly globally. You need a fast NoSQL database (DynamoDB) to track watch history. You need powerful servers (AWS EC2) to encode video. Next.js is just the frontend orchestrator tying the systems together.
Common Use Cases
- •Senior Engineering Interviews
- •Architecting startups
- •Scaling to massive traffic
Terminal Output
bash / terminal
/*
Conceptual System Design for a Global E-Commerce App:
[ USER IN TOKYO ] ---> [ VERCEL EDGE CDN (Tokyo) ]
|
| (Serves cached HTML instantly via SSG/ISR)
|
[ NEXT.JS SERVERLESS FUNCTIONS (US-East) ]
| (Handles dynamic Checkout / Auth)
v
[ PRISMA CONNECTION POOLER ]
|
v
[ POSTGRESQL DATABASE (Primary in US-East) ]
*/
Interview Questions
basic
- What is a CDN (Content Delivery Network) and why is it critical for Next.js scalability?
intermediate
- Why are standard Serverless Functions (like AWS Lambda) a poor choice for long-running processes like video encoding?