Adapters
Node.js
Integrate crossws with Node.js using ws or uWebSockets.js
To integrate crossws with your Node.js HTTP server, you need to connect the upgrade event to the handleUpgrade method returned from the adapter. crossws uses a prebundled version of ws.
import { createServer } from "node:http";
import crossws from "crossws/adapters/node";
const ws = crossws({
hooks: {
message: console.log,
},
});
const server = createServer((req, res) => {
res.end(
`<script>new WebSocket("ws://localhost:3000").addEventListener('open', (e) => e.target.send("Hello from client!"));</script>`,
);
}).listen(3000);
server.on("upgrade", ws.handleUpgrade);
Adapter Hooks
node:open (peer)node:message (peer, data, isBinary)node:close (peer, code, reason)node:error (peer, error)node:ping (peer)node:pong (peer)node:unexpected-response (peer, req, res)node:upgrade (peer, req)
See
test/fixture/node.ts for demo and src/adapters/node.ts for implementation.uWebSockets
You can alternatively use uWebSockets.js for Node.js servers.
First add uNetworking/uWebSockets.js as a dependency.
import { App } from "uWebSockets.js";
import crossws from "crossws/adapters/uws";
const ws = crossws({
hooks: {
message: console.log,
},
});
const server = App().ws("/*", ws.websocket);
server.get("/*", (res, req) => {
res.writeStatus("200 OK").writeHeader("Content-Type", "text/html");
res.end(
`<script>new WebSocket("ws://localhost:3000").addEventListener('open', (e) => e.target.send("Hello from client!"));</script>`,
);
});
server.listen(3001, () => {
console.log("Listening to port 3001");
});
Adapter Hooks
uws:open (ws)uws:message (ws, message, isBinary)uws:close (ws, code, message)uws:ping (ws, message)uws:pong (ws, message)uws:drain (ws)uws:upgrade (res, req, context)uws:subscription (ws, topic, newCount, oldCount)
See
test/fixture/node-uws.ts for demo and src/adapters/node-uws.ts for implementation.