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Sleeping
Sleeping
File size: 2,249 Bytes
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const express = require("express");
const { createServer } = require("http");
const { Server } = require("socket.io");
const cors = require("cors");
const dotenv = require("dotenv");
const path = require("path");
dotenv.config();
const app = express();
const httpServer = createServer(app);
const io = new Server(httpServer, {
cors: {
origin:
process.env.NODE_ENV === "production"
? process.env.CLIENT_URL || "http://localhost:5173"
: true, // Allow all origins in development
methods: ["GET", "POST"],
credentials: true
}
});
const PORT = process.env.PORT || 3000;
const HOST = process.env.HOST || "localhost";
// Middleware
app.use(cors());
app.use(express.json());
// Serve static files from frontend build (for production)
if (process.env.NODE_ENV === "production") {
const frontendPath = path.join(__dirname, "../../../../app/dist");
app.use(express.static(frontendPath));
// Serve index.html for all routes (SPA support)
app.get("*", (req: any, res: any, next: any) => {
if (req.path.startsWith("/health") || req.path.startsWith("/socket.io")) {
return next();
}
res.sendFile(path.join(frontendPath, "index.html"));
});
}
// Health check endpoint
app.get("/health", (_req: any, res: any) => {
res.json({ status: "ok", timestamp: new Date().toISOString() });
});
// Socket.io connection handling
io.on("connection", (socket: any) => {
console.log(`New client connected: ${socket.id}`);
// Echo test handler
socket.on("echo", (data: any, callback: any) => {
const timestamp = new Date().toISOString();
const responseMessage = `Hello from server! Received: "${data.message}" at ${timestamp}`;
console.log(`[Echo] Client ${socket.id}: ${data.message}`);
// Send response via callback
if (callback && typeof callback === "function") {
callback({
message: responseMessage,
serverTime: timestamp,
clientTime: data.timestamp
});
}
});
socket.on("disconnect", () => {
console.log(`Client disconnected: ${socket.id}`);
});
});
// Start server
httpServer.listen(PORT, HOST, () => {
console.log(`Server running on ${HOST}:${PORT}`);
console.log(`Health check: http://${HOST}:${PORT}/health`);
console.log(`Environment: ${process.env.NODE_ENV || "development"}`);
});
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