Sourced from socket.io's releases.

4.4.0

Bug Fixes

• only set 'connected' to true after middleware execution (02b0f73)

Features

• add an implementation based on uWebSockets.js (c0d8c5a)

const { App } = require("uWebSockets.js");
const { Server } = require("socket.io");
const app = new App();
const io = new Server();
io.attachApp(app);
io.on("connection", (socket) => {
// ...
});
app.listen(3000, (token) => {
if (!token) {
console.warn("port already in use");
}
});

• add timeout feature (f0ed42f)

socket.timeout(5000).emit("my-event", (err) => {
  if (err) {
    // the client did not acknowledge the event in the given delay
  }
});

• add type information to socket.data (#4159) (fe8730c)

interface SocketData {
  name: string;
  age: number;
}
const io = new Server<ClientToServerEvents, ServerToClientEvents, InterServerEvents, SocketData>();
</tr></table>

... (truncated)

Sourced from socket.io's changelog.

4.4.0 (2021-11-18)

Bug Fixes

• only set 'connected' to true after middleware execution (02b0f73)

Features

• add an implementation based on uWebSockets.js (c0d8c5a)
• add timeout feature (f0ed42f)
• add type information to socket.data (#4159) (fe8730c)

• 0f11c47 chore(release): 4.4.0
• b839a3b fix: prevent double ack when emitting with a timeout
• f0ed42f feat: add timeout feature
• b7213e7 test: fix flaky test
• 2da8210 test: add test for volatile packet with binary
• 02b0f73 fix: only set 'connected' to true after middleware execution
• c0d8c5a feat: add an implementation based on uWebSockets.js
• fe8730c feat: add type information to socket.data (#4159)
• See full diff in compare view

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