App Metrics is an open-source and cross-platform .NET library used to record metrics within an application. App Metrics can run on .NET Core or on the full .NET framework also supporting .NET 4.5.2. App Metrics abstracts away the underlaying repository of your Metrics for example InfluxDB, Graphite, Elasticsearch etc, by sampling and aggregating in memory and providing extensibility points to flush metrics to a repository at a specified interval. For pre .NET Core web applications see AppMetrics.Owin
App Metrics provides various metric types to measure things such as the rate of requests, counting the number of user logins over time, measure the time taken to execute a database query, measure the amount of free memory and so on. Metrics types supported are Gauges, Counters, Meters, Histograms and Timers and Application Performance Indexes Apdex.
For metric reporting capabilities see:
- Console & Text File Reporters
- InfluxDB Extensions
- Elasticsearch Extensions
- Prometheus Extensions
- Graphite Extensions
App.Metrics includes an Exponentially Forward Decaying, Sliding Window and Algorithm R reservoir implementations, for additional reservoir sampling see the reservoir repo. For more details on reservoir sampling see the docs.
App Metrics also provides a health checking system allowing you to monitor the health of your application through user defined checks.
| Branch | AppVeyor | Travis | Coverage |
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| dev |  |
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| master |  |
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| Package | Dev Release | Pre-Release | Release |
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| App.Metrics |  |
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| App.Metrics.Extensions.Mvc |  |
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| App.Metrics.Extensions.Middleware |  |
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| App.Metrics.Formatters.Json |  |
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Grab the InfluxDB or Elasticsearch dashboard.
Grab the InfluxDB or Elasticsearch dashboard
AppVeyor and Travis CI builds are triggered on commits and PRs to dev and master branches.
See the following for build arguments and running locally.
| Configuration | Description | Default | Environment | Required |
|---|---|---|---|---|
| BuildConfiguration | The configuration to run the build, Debug or Release | Release | All | Optional |
| PreReleaseSuffix | The pre-release suffix for versioning nuget package artifacts e.g. beta |
ci | All | Optional |
| CoverWith | DotCover or OpenCover to calculate and report code coverage, None to skip. When not None, a coverage file and html report will be generated at ./artifacts/coverage |
OpenCover | Windows Only | Optional |
| SkipCodeInspect | false to run ReSharper code inspect and report results, true to skip. When true, the code inspection html report and xml output will be generated at ./artifacts/resharper-reports |
false | Windows Only | Optional |
| BuildNumber | The build number to use for pre-release versions | 0 | All | Optional |
Run build.ps1 from the repositories root directory.
.\build.ps1
With Arguments
.\build.ps1 --ScriptArgs '-BuildConfiguration=Release -PreReleaseSuffix=beta -CoverWith=OpenCover -SkipCodeInspect=false -BuildNumber=1'
Run build.sh from the repositories root directory. Code Coverage reports are now supported on Linux and OSX, it will be skipped running in these environments.
.\build.sh
With Arguments
.\build.sh --ScriptArgs '-BuildConfiguration=Release -PreReleaseSuffix=beta -BuildNumber=1'
Nuget packages won't be generated on non-windows environments by default.
Unfortunately there is currently no way out-of-the-box to conditionally build & pack a project by framework. Because
App.Metricspackages target.NET 4.5.2as well asdotnet standardthere is a work around in the build script to forcedotnet standardon build but no work around for packaging on non-windows environments.
App.Metrics includes benchmarking using BenchmarkDotNet. You can find the benchmark results here.
To run, fron the solution's root:
cd .\benchmarks\App.Metrics.Benchmarks.Runner\
dotnet run -c "Release"
You'll then be prompted to choose a benchmark to run which will output a markdown file with the result in directory .\benchmarks\App.Metrics.Benchmarks.Runner\BenchmarkDotNet.Artifacts\results.
Alternatively, you can run the same benchmarks from visual studio using xUnit.net in the benchmark project.
See the contribution guidlines for details.
Thanks for providing free open source licensing
This library is release under Apache 2.0 License ( see LICENSE ) Copyright (c) 2016 Allan Hardy
See LICENSE
App Metrics is based on the Metrics.NET library, and at the moment uses the same reservoir sampling code from the original library which is a port of the Java Dropwizard Metrics library.
Metrics.NET Licensed under these terms: "Metrics.NET is release under Apache 2.0 License Copyright (c) 2014 Iulian Margarintescu" see LICENSE
Dropwizard Metrics Licensed under these terms*: "Copyright (c) 2010-2013 Coda Hale, Yammer.com Published under Apache Software License 2.0, see LICENSE"
Get more details at codescene.io.