Senior LevelNode JS
How does the native undici HTTP/1.1 and HTTP/2 client engine achieve 3x throughput over legacy http.request?
❓ Interview Prompt: Explain Undici architecture, zero-allocation buffers, HTTP/2 multiplexing, pipelining, and high-throughput HTTP clients.
Undici is Node's official next-generation HTTP client engine:
Performance Features:
•
Minimizes Buffer allocations and eliminates legacy EventEmitter overhead.
•
Implements HTTP pipelining and connection pooling, delivering up to 3x higher throughput than legacy 'http.request'!
Code Implementation Example
javascript
import { fetch, Agent } from 'undici';
const client = new Agent({
keepAliveTimeout: 10000,
pipelining: 10
});
const res = await fetch('https://api.internal/data', { dispatcher: client });💡Executing high-throughput HTTP requests using Undici client agent.
🎯 Interview Key Takeaway
Use Undici for internal microservice HTTP calls to achieve 3x higher throughput over legacy http.request.
#Undici#HTTP Client#Pipelining#Performance#Senior
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