03. Data Structures/Queues/LEARN

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+

loggerMiddleware.js

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+const express = require('express');
+const app = express();
+
+// Middleware function to log requests
+app.use((req, res, next) => {
+  console.log(`Received a ${req.method} request to ${req.url}`);
+  next(); // Call next() to move to the next middleware or route handler
+});
+
+// Middleware function to check if the request contains a specific header
+app.use((req, res, next) => {
+  if (req.headers.authorization) {
+    console.log('Authorization header present');
+  } else {
+    console.log('Authorization header not present');
+  }
+  next();
+});
+
+// Route handler
+app.get('/', (req, res) => {
+  res.send('Hello, World!');
+});
+
+// Starting the server
+const PORT = process.env.PORT || 3000;
+app.listen(PORT, () => {
+  console.log(`Server is running on port ${PORT}`);
+});

server.js

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+// Import required modules
+const express = require('express');
+
+// Create an Express application
+const app = express();
+
+// Middleware function to log requests
+app.use((req, res, next) => {
+  console.log(`Received a ${req.method} request to ${req.url}`);
+  next(); // Call next() to move to the next middleware or route handler
+});
+
+// Middleware function to check if the request contains a specific header
+app.use((req, res, next) => {
+  if (req.headers.authorization) {
+    console.log('Authorization header present');
+  } else {
+    console.log('Authorization header not present');
+  }
+  next();
+});
+
+// Route handler
+app.get('/', (req, res) => {
+  res.send('Hello, World!');
+});
+
+// Starting the server
+const PORT = process.env.PORT || 3000;
+app.listen(PORT, () => {
+  console.log(`Server is running on port ${PORT}`);
+});