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index.js
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index.js
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const express = require("express");
const app = express();
const PORT = process.env.PORT || 8080;
require("dotenv").config();
const cors = require("cors");
const cookieParser = require("cookie-parser");
const mongoose = require("mongoose");
const server = require("http").createServer(app);
const io = require("socket.io")(server, {
cors: {
origin: "*",
},
});
const dbUrl = process.env.MONGO_URI;
// Middleware
app.use(
cors({
origin: ["http://localhost:3000", "http://localhost:5173"],
credentials: true,
})
);
app.use(express.json());
app.use(cookieParser());
// Routes
const userRouter = require("./routes/userRouter");
app.use("/users", userRouter);
const gameRouter = require("./routes/gameRouter");
app.use("/game", gameRouter);
// Error handling middleware
app.use((err, req, res, next) => {
console.log(`ERROR => ${err}`);
res.send(err);
});
io.on("connection", (socket) => {
console.log(`client ${socket.id} connected.`);
try {
socket.emit("enter", "Welcome! You are connected.");
socket.on("test", (data) => {
console.log(data);
});
} catch (error) {
console.error(error);
}
socket.on("disconnect", () => {
console.log(`client ${socket.id} disconnected.`);
});
});
const pollingInterval = 30 * 1000; // 5 seconds
const initSocket = (io) => {
const interval = setInterval(() => {
console.log("*** Test emitted! ***");
io.emit("test", "Testing socket");
}, pollingInterval);
};
initSocket(io);
// Start the server
async function init() {
try {
const connection = await mongoose.connect(dbUrl, {
dbName: "galaxy-smashers",
});
if (connection.connections[0].host) {
console.log("Connected to DB");
server.listen(PORT, () => {
console.log("Listening on port " + PORT);
});
}
} catch (err) {
console.log(err);
process.exit(1);
}
}
init();