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@platformatic/http-metrics
Advanced tools
The `http-metrics` package provides a simple way to collect prometheus metrics for your Node.js HTTP server. It can be used with any Node.js HTTP server framework, such as Express, Koa, or Fastify.
The http-metrics
package provides a simple way to collect prometheus metrics for your Node.js HTTP server. It can be used with any Node.js HTTP server framework, such as Express, Koa, or Fastify.
npm install @platformatic/http-metrics
const { createServer } = require('node:http')
const { Registry } = require('prom-client')
const httpMetrics = require('./index')
const registry = new Registry()
httpMetrics(registry)
const server = createServer(async (req, res) => {
if (req.url === '/metrics') {
const metrics = await registry.metrics()
res.setHeader('Content-Type', registry.contentType)
res.end(metrics)
return
}
res.end('Hello World\n')
})
server.listen(0, () => {
const { port } = server.address()
console.log(`Server listening on http://127.0.0.1:${port}`)
})
registry
<Registry>
The prom-client registry to use for collecting metrics.options
<object>
Options for configuring the metrics collection.
customLabels
<array>
A list of custom labels names to add to the metrics.getCustomLabels(req, res, server)
<function>
A function that returns an object of custom labels to add to the metrics. The function receives the request object as a first argument and a response object as a second argument.ignoreMethods
<array>
A list of HTTP methods to ignore when collecting metrics. Default: ['OPTIONS', 'HEAD', 'CONNECT', 'TRACE']
.ignoreUrls
<array>
A list of URLs strings and regexps to ignore when collecting metrics. Default: []
.ignore(req, res, server)
<function>
A function that returns a boolean indicating whether to ignore the request when collecting metrics. The function receives the request object as a first argument and a response object as a second argument.ports
<array>
By default the http metrics are collected for all defined http servers. If you want to collect metrics only for specific http servers, you can provide an array of ports to collect metrics for.histogram
<object>
prom-client histogram options. Use it if you want to customize the histogram.summary
<object>
prom-client summary options. Use it if you want to customize the summary.Returns:
histogram
<Histogram>
The histogram metric for measuring request duration.summary
<Summary>
The summary metric for measuring request duration.startTimer({ request, [server] })
<function>
A function that starts a timer for measuring request duration.
The function can be used to add custom measurements that are not collected by diagnostic channel.endTimer({ request, response, [server] })
<function>
A function that ends a timer for custom request duration measurement.Apache-2.0
FAQs
The `http-metrics` package provides a simple way to collect prometheus metrics for your Node.js HTTP server. It can be used with any Node.js HTTP server framework, such as Express, Koa, or Fastify.
The npm package @platformatic/http-metrics receives a total of 0 weekly downloads. As such, @platformatic/http-metrics popularity was classified as not popular.
We found that @platformatic/http-metrics demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 7 open source maintainers collaborating on the project.
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