const server = /* create deepstream server */;
import clientPlugin, { extendPermissionHandler } from "deepstreamio-server-client-plugin"

// Attach to server
const port = 6021; // Your server's TCP port
const bytes = 64; // More bytes = more secure but slower
clientPlugin(server, port, bytes);

// extendPermissionHandler handles authenticating the server for you, and then
// defers to your permissionHandler
server.set('permissionHandler', extendPermissionHandler({
    isValidUser: function(conn, auth, cb) {
        // Handle client auth
    },
    canPerformAction: function(username, message, cb) {
        // Handle client permissions
    }
}));

// Wait for "clientReady" before you try to use the client
// "clientReady" won't fire until the server starts
server.once('clientReady', () => {
    // Use client
});