Big update!Announcing Socket for GitHub 1.0. Learn more
Socket
BlogLoveFAQ
Install
Log in

vary

Package Overview
Dependencies
0
Maintainers
1
Versions
7
Issues
File Explorer

Advanced tools

vary

Manipulate the HTTP Vary header

    1.1.2latest

Version published
Maintainers
1
Weekly downloads
24,672,266
decreased by-5.43%

Weekly downloads

Readme

Source

vary

NPM Version NPM Downloads Node.js Version Build Status Test Coverage

Manipulate the HTTP Vary header

Installation

This is a Node.js module available through the npm registry. Installation is done using the npm install command:

$ npm install vary

API

var vary = require('vary')

vary(res, field)

Adds the given header field to the Vary response header of res. This can be a string of a single field, a string of a valid Vary header, or an array of multiple fields.

This will append the header if not already listed, otherwise leaves it listed in the current location.

// Append "Origin" to the Vary header of the response vary(res, 'Origin')

vary.append(header, field)

Adds the given header field to the Vary response header string header. This can be a string of a single field, a string of a valid Vary header, or an array of multiple fields.

This will append the header if not already listed, otherwise leaves it listed in the current location. The new header string is returned.

// Get header string appending "Origin" to "Accept, User-Agent" vary.append('Accept, User-Agent', 'Origin')

Examples

Updating the Vary header when content is based on it

var http = require('http') var vary = require('vary') http.createServer(function onRequest (req, res) { // about to user-agent sniff vary(res, 'User-Agent') var ua = req.headers['user-agent'] || '' var isMobile = /mobi|android|touch|mini/i.test(ua) // serve site, depending on isMobile res.setHeader('Content-Type', 'text/html') res.end('You are (probably) ' + (isMobile ? '' : 'not ') + 'a mobile user') })

Testing

$ npm test

License

MIT

Keywords

FAQs

What is vary?

Manipulate the HTTP Vary header

Is vary popular?

The npm package vary receives a total of 23,121,611 weekly downloads. As such, vary popularity was classified as popular.

Is vary well maintained?

We found that vary demonstrated a not healthy version release cadence and project activity. It has 1 open source maintainer collaborating on the project.

Last updated on 24 Sep 2017
Socket

Product

Subscribe to our newsletter

Get open source security insights delivered straight into your inbox. Be the first to learn about new features and product updates.


  • Terms
  • Privacy
  • Security

Made with ⚡️ by Socket Inc