Node.js AdvancedLesson 91Free preview

HTTP2 Module

This lesson is part of Node.js · All levels

Summary

This lesson discusses the built-in HTTP2 module that implements the HTTP/2 protocol. You'll understand multiplexing, header compression (HPACK), and server push that makes page loading more efficient. This module provides createSecureServer with an ALPN 'h2' and similar HTTP/1.1 API. (Node.js)

Key points

HTTP/2 uses a single TCP connection for multiple streams at once (multiplexing).
Header compressed with HPACK so overhead repetition is reduced.
Node.js provides http2.createSecureServer() (https) and createServer() (h2c, rarely used on the web).
The server allows the server to send a resource before the client requests it.
Its API is similar to HTTP/1.1: event 'stream', stream.respond(), stream.end().

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