1
import express, { Request, Response, NextFunction } from "express";
2
import cookieParser from "cookie-parser";
3
import dotenv from "dotenv";
4
import { ErrorMiddleware } from "./middleware/error";
5
import userRouter from "./routes/user.route";
6
import { v2 as cloudinary } from "cloudinary";
7
import eventRouter from "./routes/event.route";
8
import orderRouter from "./routes/order.route";
9
import NotificationRouter from "./routes/notification.route";
10
import analyticsRouter from "./routes/analytics.route";
11
import layoutRouter from "./routes/layout.route";
12
import destinationRouter from "./routes/destination.route";
13
import { rateLimit } from "express-rate-limit";
14
const cors = require('cors');
15

16
// Initialize environment variables
17
dotenv.config();
18

19
// Verify required environment variables
20
export const app = express();
21

22
// CORS middleware
23
app.use(cors({
24
  origin: [
25
    "http://localhost:3000",  // Local development frontend
26
    "https://tour-client-teal.vercel.app"  // Add the production frontend URL
27
  ], 
28
  credentials: true,  // Allow credentials (cookies)
29
}));
30

31
// Cloudinary Configuration
32
cloudinary.config({
33
  cloud_name: process.env.CLOUD_NAME,
34
  api_key: process.env.CLOUD_API_KEY,
35
  api_secret: process.env.CLOUD_SECRET_KEY,
36
});
37

38
// Middleware to parse JSON payloads with larger size and handle request timeout
39
app.use((req, res, next) => {
40
  // Set timeout to 2 minutes (120,000 ms)
41
  res.setTimeout(120000, () => {
42
    res.status(408).json({
43
      success: false,
44
      message: 'Request timed out',
45
    });
46
  });
47
  next();
48
});
49

50
// Middlewares
51
app.use(express.urlencoded({ extended: true }));
52
app.use(express.json({ limit: '100mb' })); // Adjusted payload size limit
53
app.use(cookieParser()); // Parse cookies
54

55
// API request limit - Ensure this is applied after CORS
56
const limiter = rateLimit({
57
  windowMs: 15 * 60 * 1000, // 15 minutes
58
  max: 500, // Increased from 100 to 500
59
  standardHeaders: "draft-7",
60
  legacyHeaders: false,
61
});
62

63
app.use(limiter);  // Apply rate limiter middleware here
64

65
// Routes
66
app.use("/api/v1", userRouter);
67
app.use("/api/v1", eventRouter);
68
app.use("/api/v1", orderRouter);
69
app.use("/api/v1", NotificationRouter);
70
app.use("/api/v1", analyticsRouter);
71
app.use("/api/v1", layoutRouter);
72
app.use("/api/v1", destinationRouter);
73

74
// Testing API
75
app.get("/test", (req: Request, res: Response) => {
76
  res.status(200).json({
77
    success: true,
78
    message: "API is Working",
79
  });
80
});
81

82
// Unknown Route Handler
83
app.all("*", (req: Request, res: Response, next: NextFunction) => {
84
  const error = new Error(`Route ${req.originalUrl} not found`) as any;
85
  error.statusCode = 404;
86
  next(error);
87
});
88

89
// Error Middleware (must come after routes and unknown route handler)
90
app.use(ErrorMiddleware);
91

92
app.use((req, res, next) => {
93
  res.setHeader("Connection", "keep-alive");
94
  next();
95
});