3-quicksocket-callbacks.js

app.post("/callback", async (req, res) => {
    res.status(204);
    res.send();

    // Remember to include security checks here - see the documentation
    // for more information.

    const { action, referenceId, payload } = req.body;
    switch (action) {
        case "CONNECT":
            console.log("User", referenceId, "connected!");
            break;
        case "DISCONNECT":
            console.log("User", referenceId, "disconnected!");
            break;
        case "MESSAGE":
            console.log("User", referenceId, "sent", payload);
            break;
    }
});