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server.js
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server.js
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const express = require("express");
const https = require("https");
const session = require("express-session");
const cors = require("cors");
const cookieParser = require("cookie-parser");
const compression = require("compression");
const cacheControl = require("express-cache-controller");
const morgan = require("morgan");
const { check, validationResult } = require("express-validator");
const rateLimit = require("express-rate-limit");
const app = express();
//Middleware
app.use(express.json());
// Static files
app.use(express.static("public"));
app.use(cors());
app.use(cookieParser());
app.use(compression());
app.use(express.urlencoded({ extended: false }));
app.use(cacheControl({ noCache: true }));
//Morgan
morgan.token("date", function () {
var p = new Date()
.toString()
.replace(/[A-Z]{3}\+/, "+")
.split(" ");
return p[2] + "/" + p[1] + "/" + p[3] + ":" + p[4] + " " + p[5];
});
// Rate limiting
app.use(
rateLimit({
windowMs: 15 * 60 * 1000, // 15 minutes
max: 100, // limit each IP to 100 requests per windowMs
message:
"Too many requests from this IP, please try again after 15 minutes",
})
);
// Validator
app.post(
"/user",
[check("username").isEmail(), check("password").isLength({ min: 5 })],
(req, res) => {
const errors = validationResult(req);
if (!errors.isEmpty()) {
return res.status(400).json({ errors: errors.array() });
}
res.send("User Created");
}
);
// Session Middleware
app.use(
session({
secret: "secret",
resave: true,
saveUninitialized: false,
cookie: { maxAge: 60000 },
})
);
app.get("/", (req, res) => {
console.log("Hello World");
res.send("Hello World");
res.cacheControl = {
noCache: true,
};
});
// Middleware Chaining
app.use((req, res, next) => {
console.log("Middleware 1");
next();
});
// Error handling middleware
app.use((err, req, res, next) => {
console.error(err.stack);
res.status(500).send("Something broke!");
});
// Route handling middleware
app.use(
"/user/:id",
(req, res, next) => {
console.log("Request URL:", req.originalUrl);
next();
},
(req, res, next) => {
console.log("Request Type:", req.method);
next();
}
);
app.use((req, res, next) => {
console.log("Middleware 2");
next();
});
const Middleware = (req, res, next) => {
console.log("Middleware");
next();
};
app.use(Middleware);
app.listen(3000, () => {
console.log("Server is running on port 3000");
});