expressjsHow do I use Express.js to get headers?
Express.js is a web application framework for Node.js. It can be used to get headers from incoming requests. Here is an example of how to do this:
const express = require('express')
const app = express()
app.get('/', (req, res) => {
const headers = req.headers
console.log(headers)
res.send('Headers received')
})
app.listen(3000)
This example code will create an Express.js server that will log the headers from incoming requests and respond with the message Headers received
.
The code consists of the following parts:
const express = require('express')
- This line imports the Express.js module.const app = express()
- This line creates an Express.js application.app.get('/', (req, res) => {
- This line creates a route handler for theGET
request to the root URL.const headers = req.headers
- This line retrieves the headers from the incoming request.console.log(headers)
- This line logs the headers to the console.res.send('Headers received')
- This line sends the responseHeaders received
to the client.app.listen(3000)
- This line starts the Express.js server on port 3000.
For more information about Express.js, see the documentation.
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