Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
res.attachment() Method in Express.js
The res.attachment() method is used for setting the Content-Disposition header field to "attachment". If a filename is passed, then it sets the Content-type based on the extension name that is retrieved from the res.type(). It sets the Content-Disposition "filename" field with the parameter.
Syntax
res.attachment()
Example 1
Create a file with the name "resAttachment.js" and copy the following code snippet. After creating the file, use the command "node resAttachment.js" to run this code as shown in the example below −
// res.attachment() Method Demo Example
// Importing the express
var express = require('express');
// Initializing the express and port number
var app = express();
// Initializing the router from express
var router = express.Router();
var PORT = 3000;
// Defining an endpoint
app.get('/api', function(req, res){
res.attachment('attacment.txt');
console.log(res.get('Content-Disposition'));
res.end();
});
app.listen(PORT, function(err){
if (err) console.log(err);
console.log("Server listening on PORT", PORT);
});Hit the following Endpoint with a GET request − localhost:3000/api
Output
C:\home
ode>> node resAttachment.js Server listening on PORT 3000 attachment; filename="attacment.txt"
Example 2
Let's take a look at one more example.
// res.attachment() Method Demo Example
// Importing the express
var express = require('express');
// Initializing the express and port number
var app = express();
// Initializing the router from express
var router = express.Router();
var PORT = 3000;
// Defining an endpoint
// With middleware
app.use('/api', function(req, res, next){
res.attachment('tutorialspoint.txt');
console.log(res.get('Content-Disposition'));
next();
})
app.get('/api', function(req, res){
console.log('Attachment Added');
res.send("Attachment Added");
});
app.listen(PORT, function(err){
if (err) console.log(err);
console.log("Server listening on PORT", PORT);
});Hit the following Endpoint with a GET Request − localhost:3000/api
Output
C:\home
ode>> node resAttachment.js Server listening on PORT 3000 attachment; filename="tutorialspoint.txt" Attachment Added
Updated on: 29-Jan-2022
892 Views
Advertisements