36 lines
1.1 KiB
JavaScript
36 lines
1.1 KiB
JavaScript
'use strict';
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const Profiler = require('../../stats/profiler-proxy');
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const debug = require('debug')('windshaft:cartodb:stats');
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const { name: prefix } = require('../../../package.json');
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module.exports = function profiler (options) {
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const { enabled = true, statsClient } = options;
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return function profilerMiddleware (req, res, next) {
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const { logger } = res.locals;
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// TODO: stop using profiler and log stats instead of adding them to the profiler
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req.profiler = new Profiler({
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statsd_client: statsClient,
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profile: enabled
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});
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req.profiler.start([prefix, 'response'].join('.'));
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res.on('finish', () => {
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req.profiler.end();
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logger.info({ stats: req.profiler.toJSON() });
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try {
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// May throw due to dns, see: http://github.com/CartoDB/Windshaft/issues/166
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req.profiler.sendStats();
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} catch (err) {
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debug('error sending profiling stats: ' + err);
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}
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});
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next();
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};
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};
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