The modular-socket.io package can be used to load events for a socket.io WebSocket from a given directory.

const io = require("socket.io");

const path = require("path");
const fs = require("fs");

const mod = require("modular-socket.io");
const publicEvents = mod(path.join(__dirname, "api", "events"));
const adminEvents = mod(path.join(__dirname, "api", "admin", "events"));

...

io.on("connect", (socket) => {
    publicEvents(socket);
    if (/* authorized */) {
        adminEvents(socket);
    }
});

require("modular-socket.io")

Returns the createEvents function

createEvents(directory)

Attempts to load all .js files within the given directory.

Returns a function that sets the events up for passed in sockets using the files within the given directory.

Files must export a function by default, that can take as many arguments as you wish. The first argument will always be the socket that emitted the event.