What is spdy?
The spdy npm package is designed to support the SPDY and HTTP/2 protocols in Node.js. It provides server and client functionality, allowing developers to create SPDY/HTTP2 servers and clients with ease. This package is particularly useful for improving web application performance by leveraging the advanced features of these protocols, such as multiplexing, server push, and header compression.
What are spdy's main functionalities?
Creating an SPDY/HTTP2 server
This code sample demonstrates how to create a simple SPDY/HTTP2 server using the spdy package along with Express. It sets up a server that listens on port 3000 and serves a simple message over SPDY/HTTP2.
const spdy = require('spdy');
const express = require('express');
const app = express();
app.get('/', (req, res) => {
res.end('Hello over SPDY/HTTP2');
});
const options = {
key: fs.readFileSync('<path-to-key>'),
cert: fs.readFileSync('<path-to-cert>')
};
spdy.createServer(options, app).listen(3000, () => {
console.log('Server is running on https://localhost:3000');
});
Creating an SPDY/HTTP2 client
This code sample shows how to create an SPDY/HTTP2 client that connects to a server. It demonstrates making a request to the server and handling the response, including reading response headers and data.
const spdy = require('spdy');
const http2 = require('http2');
const client = spdy.connect('https://localhost:3000', (err, socket) => {
if (err) {
throw new Error('Connection failed');
}
const req = http2.request({
':path': '/'
});
req.on('response', (headers) => {
console.log('Response headers:', headers);
});
req.setEncoding('utf8');
req.on('data', (chunk) => console.log(chunk));
req.end();
});
Other packages similar to spdy
http2
The http2 package is a core module in Node.js that provides an implementation of the HTTP/2 protocol. It offers similar functionalities to spdy, such as creating servers and clients that can communicate over HTTP/2. However, spdy provides additional support for the SPDY protocol, which is not covered by the http2 module.
node-http2
node-http2 is an npm package that also implements the HTTP/2 protocol. It provides an API for creating HTTP/2 servers and clients. Compared to spdy, node-http2 focuses solely on HTTP/2 without support for SPDY. spdy might offer a more comprehensive solution for developers looking to support both protocols.