Description
Package provides simple uniform interface for metrics such as counters,
gauges and histograms. It keeps track of metrics in runtime and can be used for
some basic web service instrumentation in Go, where complex tools such as
Prometheus or InfluxDB are not required.
It is compatible with expvar package, that is also commonly used for monitoring.
metric alternatives and similar packages
Based on the "DevOps Tools" category.
Alternatively, view metric alternatives based on common mentions on social networks and blogs.
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Moby
Moby Project - a collaborative project for the container ecosystem to assemble container-based systems -
Packer
Packer is a tool for creating identical machine images for multiple platforms from a single source configuration. -
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Hey
HTTP load generator, ApacheBench (ab) replacement, formerly known as rakyll/boom -
Flynn
[UNMAINTAINED] A next generation open source platform as a service (PaaS) -
webhook
webhook is a lightweight incoming webhook server to run shell commands -
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StatusOK
Monitor your Website and APIs from your Computer. Get Notified through Slack, E-mail when your server is down or response time is more than expected. -
goxc
a build tool for Go, with a focus on cross-compiling, packaging and deployment -
s3gof3r
Fast, concurrent, streaming access to Amazon S3, including gof3r, a CLI. http://godoc.org/github.com/rlmcpherson/s3gof3r -
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dasel
Query, update and convert data structures from the command line. Comparable to jq/yq but supports JSON, TOML, YAML, XML and CSV with zero runtime dependencies. -
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uTask
µTask is an automation engine that models and executes business processes declared in yaml. ✏️📋 -
cassowary
:rocket: Modern cross-platform HTTP load-testing tool written in Go -
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dogo
Monitoring changes in the source file and automatically compile and run (restart). -
Pewpew
Flexible HTTP command line stress tester for websites and web services -
easyssh-proxy
easyssh-proxy provides a simple implementation of some SSH protocol features in Go -
gobrew
Shell script to download and set GO environmental paths to allow multiple versions. -
terraform-provider-openapi
OpenAPI Terraform Provider that configures itself at runtime with the resources exposed by the service provider (defined in a swagger file)
Scout APM - Leading-edge performance monitoring starting at $39/month
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README
metric
Package provides simple uniform interface for metrics such as counters, gauges and histograms. It keeps track of metrics in runtime and can be used for some basic web service instrumentation in Go, where complex tools such as Prometheus or InfluxDB are not required.
It is compatible with expvar package, that is also commonly used for monitoring.
Usage
// Create new metric. All metrics may take time frames if you want them to keep
// history. If no time frames are given the metric only keeps track of a single
// current value.
c := metric.NewCounter("15m10s") // 15 minutes of history with 10 second precision
// Increment counter
c.Add(1)
// Return JSON with all recorded counter values
c.String() // Or json.Marshal(c)
// With expvar
// Register a metric
expvar.Publish("latency", metric.NewHistogram("5m1s", "15m30s", "1h1m"))
// Register HTTP handler to visualize metrics
http.Handle("/debug/metrics", metric.Handler(metric.Exposed))
// Measure time and update the metric
start := time.Now()
...
expvar.Get("latency").(metric.Metric).Add(time.Since(start).Seconds())
Metrics are thread-safe and can be updated from background goroutines.
Web UI
Nothing fancy, really, but still better than reading plain JSON. No javascript, only good old HTML, CSS and SVG.
[web ui](example/screenshot.png)
Of course you may customize a list of metrics to show in the web UI.
If you need precise values - you may use /debug/vars HTTP endpoint provided
by expvar.
License
Code is distributed under MIT license, feel free to use it in your proprietary projects as well.
*Note that all licence references and agreements mentioned in the metric README section above
are relevant to that project's source code only.