31 lines
835 B
JavaScript
31 lines
835 B
JavaScript
var request = require('request');
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function VarnishHttpCacheBackend(host, port) {
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this.host = host;
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this.port = port;
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}
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module.exports = VarnishHttpCacheBackend;
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/**
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* @param cacheObject should respond to `key() -> String` method
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* @param {Function} callback
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*/
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VarnishHttpCacheBackend.prototype.invalidate = function(cacheObject, callback) {
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request(
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{
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method: 'PURGE',
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url: 'http://' + this.host + ':' + this.port + '/key',
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headers: {
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'Invalidation-Match': '\\b' + cacheObject.key() + '\\b'
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}
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},
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function(err, response) {
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if (err || response.statusCode !== 204) {
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return callback(new Error('Unable to invalidate Varnish object'));
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}
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return callback(null);
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}
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);
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};
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