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cacheable-middleware

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cacheable-middleware

Middleware component to set cache headers on responses from an Express or Connect server

1.0.0
latest
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npmnpm
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69
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cacheable-middleware

Middleware component to set cache headers on responses from an Express or Connect server.

Installation

Install as an NPM module:

npm install cacheable-middleware

Usage

The cacheable middleware can be used in two ways - by adding it to the express or connect server, the response will add a new method cacheFor( millisecondsDuration ) that will add the cache headers to cache this particular response for the specified number of milliseconds.

// add cache middleware to add cacheFor method to responses
app.use(require('cache-middleware')());

// add a route that sends a file and sets headers to cache for one day
app.get('/', function(req, res) {
   res.cacheFor(86400000).sendfile(__dirname + '/index.html');
});

// add a route that sends a file and sets headers to cache for six months
app.get('/long-cache', function(req, res) {
   res.cacheFor(6, 'months').sendfile(__dirname + '/index.html');
});

To automatically set the cache headers for a particular duration for a path, set the duration when the middleware is added:

// add cache middleware to add cacheFor method to responses
// and default the cache headers on each response to one day
app.use('/static', require('cache-middleware')(86400000));

// alternative syntax
app.use('/static', require('cache-middleware')(1 'day'));

Duration Syntax

For conveninece, durations can be supplied as any arguments that can be received by Moment.js.

Breaking Changes

Upgrading to version 1.x requires node >= 6 to support the use of ES6

Keywords

cache

FAQs

Package last updated on 05 Aug 2018

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