30 lines
1.1 KiB
JavaScript
30 lines
1.1 KiB
JavaScript
'use strict';
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exports = module.exports = {
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getGraphs: getGraphs
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};
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var middleware = require('../middleware/index.js'),
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url = require('url');
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// for testing locally: curl 'http://127.0.0.1:8417/graphite-web/render?format=json&from=-1min&target=absolute(collectd.localhost.du-docker.capacity-usage)'
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// the datapoint is (value, timestamp) https://buildmedia.readthedocs.org/media/pdf/graphite/0.9.16/graphite.pdf
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const graphiteProxy = middleware.proxy(url.parse('http://127.0.0.1:8417'));
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function getGraphs(req, res, next) {
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var parsedUrl = url.parse(req.url, true /* parseQueryString */);
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delete parsedUrl.query['access_token'];
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delete req.headers['authorization'];
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delete req.headers['cookies'];
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// 'graphite-web' is the URL_PREFIX in docker-graphite
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req.url = url.format({ pathname: 'graphite-web/render', query: parsedUrl.query });
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// graphs may take very long to respond so we run into headers already sent issues quite often
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// nginx still has a request timeout which can deal with this then.
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req.clearTimeout();
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graphiteProxy(req, res, next);
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}
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