uWebSockets.js/README.md
2020-06-20 21:01:01 +02:00

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<img src="https://raw.githubusercontent.com/uNetworking/uWebSockets/master/misc/logo.svg" height="180" /><br>
<i>Simple, secure</i><sup><a href="https://github.com/uNetworking/uWebSockets/tree/master/fuzzing#fuzz-testing-of-various-parsers-and-mocked-examples">[1]</a></sup><i> & standards compliant</i><sup><a href="https://unetworking.github.io/uWebSockets.js/report.pdf">[2]</a></sup><i> web server for the most demanding</i><sup><a href="https://github.com/uNetworking/uWebSockets/tree/master/benchmarks#benchmark-driven-development">[3]</a></sup><i> of applications.</i> <a href="https://github.com/uNetworking/uWebSockets/blob/master/misc/READMORE.md">Read more...</a>
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<a href="https://github.com/uNetworking/uWebSockets.js/releases"><img src="https://img.shields.io/github/v/release/uNetworking/uWebSockets.js"></a> <a href="https://lgtm.com/projects/g/uNetworking/uWebSockets.js/context:cpp"><img alt="Language grade: C/C++" src="https://img.shields.io/lgtm/grade/cpp/g/uNetworking/uWebSockets.js.svg?logo=lgtm&logoWidth=18"/></a> <img src="https://img.shields.io/badge/downloads-50,000,000+-green" />
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### :bulb: Familiar face
µWebSockets.js is a C++ implementation of the Http/WebSocket protocols for Node.js, easy to use from JavaScript. Think of it as a faster Express.js/Socket.IO alternative; it comes with both router and pub/sub support. Browse the [documentation](https://unetworking.github.io/uWebSockets.js/generated/) and see the [main repo](https://github.com/uNetworking/uWebSockets). There are tons of [examples](examples) but here's the gist of it all:
```javascript
/* Non-SSL is simply App() */
require('uWebSockets.js').SSLApp({
/* There are tons of SSL options */
key_file_name: 'misc/key.pem',
cert_file_name: 'misc/cert.pem',
}).ws('/*', {
/* For brevity we skip the other events */
message: (ws, message, isBinary) => {
let ok = ws.send(message, isBinary);
}
}).any('/*', (res, req) => {
/* Let's deny all Http */
res.end('Nothing to see here!');
}).listen(9001, (listenSocket) => {
if (listenSocket) {
console.log('Listening to port 9001');
}
});
```
### :muscle: Unfair advantage
Being written in native code directly targeting the Linux kernel makes it way faster than any JavaScript implementation:
![](misc/chart.png)
* Install with `npm install uNetworking/uWebSockets.js#v18.1.0` or any such release. No compiler needed.
### :briefcase: Commercially supported
<a href="https://github.com/uNetworking">uNetworking AB</a> is a Swedish consulting & contracting company dealing with anything related to µWebSockets; development, support and customer success.
Don't hesitate <a href="mailto:alexhultman@gmail.com">sending a mail</a> if you're building something large, in need of advice or having other business inquiries in mind. We'll figure out what's best for both parties and make sure you're not stepping into one of the many common pitfalls.
Special thanks to BitMEX, Bitfinex, Google, Coinbase, Bitwyre and deepstreamHub for allowing the project itself to thrive on GitHub since 2016 - this project would not be possible without these beautiful companies.
<img src="https://github.com/uNetworking/uWebSockets/raw/master/misc/2018.png" />
* µWebSockets.js is the Node.js binding to µWebSockets. Read more over at [µWebSockets](https://github.com/uNetworking/uWebSockets).