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‎.gitattributes‎

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# Auto detect text files and perform LF normalization
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* text=auto
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# Custom for Visual Studio
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*.cs diff=csharp
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*.sln merge=union
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*.csproj merge=union
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*.vbproj merge=union
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*.fsproj merge=union
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*.dbproj merge=union
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# Standard to msysgit
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*.doc diff=astextplain
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*.DOC diff=astextplain
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*.docx diff=astextplain
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*.DOCX diff=astextplain
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*.dot diff=astextplain
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*.DOT diff=astextplain
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*.pdf diff=astextplain
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*.PDF diff=astextplain
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*.rtf diff=astextplain
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*.RTF diff=astextplain

‎.gitignore‎

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*.nupkg
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*.user
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*.suo
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*.exe
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.vs
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bin
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obj
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packages
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.idea

‎LICENSE‎

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The MIT License (MIT)
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Copyright (c) 2018 Sergey Kuznetsov
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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‎Prometheus.Client.AspNetCore.sln‎

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Microsoft Visual Studio Solution File, Format Version 12.00
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# Visual Studio 15
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VisualStudioVersion = 15.0.26228.4
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MinimumVisualStudioVersion = 10.0.40219.1
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Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "src", "src", "{D994EEE1-3786-4FDF-8A49-76D8B9819A29}"
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EndProject
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Prometheus.Client.AspNetCore", "src\Prometheus.Client.AspNetCore\Prometheus.Client.AspNetCore.csproj", "{B70120FA-53E2-4290-8DF2-BD3AF7139DCB}"
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EndProject
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Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution Items", "{FA0CD8D2-E9AE-4518-B989-17901C5928B0}"
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ProjectSection(SolutionItems) = preProject
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.gitattributes = .gitattributes
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.gitignore = .gitignore
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appveyor.yml = appveyor.yml
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LICENSE = LICENSE
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README.md = README.md
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EndProjectSection
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EndProject
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Global
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GlobalSection(SolutionConfigurationPlatforms) = preSolution
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Debug|Any CPU = Debug|Any CPU
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Release|Any CPU = Release|Any CPU
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EndGlobalSection
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GlobalSection(ProjectConfigurationPlatforms) = postSolution
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{B70120FA-53E2-4290-8DF2-BD3AF7139DCB}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
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{B70120FA-53E2-4290-8DF2-BD3AF7139DCB}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{B70120FA-53E2-4290-8DF2-BD3AF7139DCB}.Release|Any CPU.ActiveCfg = Release|Any CPU
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{B70120FA-53E2-4290-8DF2-BD3AF7139DCB}.Release|Any CPU.Build.0 = Release|Any CPU
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EndGlobalSection
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GlobalSection(SolutionProperties) = preSolution
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HideSolutionNode = FALSE
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EndGlobalSection
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GlobalSection(NestedProjects) = preSolution
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{B70120FA-53E2-4290-8DF2-BD3AF7139DCB} = {D994EEE1-3786-4FDF-8A49-76D8B9819A29}
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EndGlobalSection
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EndGlobal

‎README.md‎

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# Prometheus.Client.AspNetCore
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[![NuGet Badge](https://buildstats.info/nuget/Prometheus.Client.AspNetCore)](https://www.nuget.org/packages/Prometheus.Client.AspNetCore/)
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[![License MIT](https://img.shields.io/badge/license-MIT-green.svg)](https://opensource.org/licenses/MIT)
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Extension for [Prometheus.Client](https://github.com/PrometheusClientNet/Prometheus.Client)
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#### Installation:
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dotnet add package Prometheus.Client.AspNetCore
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#### Quik start:
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```csharp
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public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory, IApplicationLifetime appLifetime)
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{
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app.UsePrometheusServer();
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}
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```

‎appveyor.yml‎

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version: '{build}-{branch}'
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image: Visual Studio 2017
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build_script:
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- cmd: dotnet restore src\Prometheus.Client.AspNetCore && dotnet pack src\Prometheus.Client.AspNetCore -c Release --include-symbols
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artifacts:
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- path: '**\*.nupkg'
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name: All Nupkg
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deploy:
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- provider: NuGet
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api_key:
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secure: vukCl5k+S4fJtqeYNiB9ufy/NUCw+60cPcqnPoqvykBjSo8Ub8QtEfZNN9qvj5Jh
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on:
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appveyor_repo_tag: true

‎src/Prometheus.Client.AspNetCore/DefaultCollectors.cs‎

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using System.Collections.Generic;
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using Prometheus.Client.Collectors;
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using System.Runtime.InteropServices;
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namespace Prometheus.Client.AspNetCore
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{
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/// <summary>
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/// All default Collector
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/// </summary>
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public static class DefaultCollectors
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{
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/// <summary>
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/// Get default Collector
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/// </summary>
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public static IEnumerable<IOnDemandCollector> Get(MetricFactory metricFactory)
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{
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yield return new DotNetStatsCollector(metricFactory);
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var isWindows = RuntimeInformation.IsOSPlatform(OSPlatform.Windows);
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if (isWindows)
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yield return new WindowsDotNetStatsCollector(metricFactory);
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}
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}
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}

‎src/Prometheus.Client.AspNetCore/Prometheus.Client.AspNetCore.csproj‎

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<Project Sdk="Microsoft.NET.Sdk">
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<PropertyGroup>
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<Description>An Owin handler for the Prometheus.Client</Description>
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<Copyright>2018 © Sergey Kuznetsov</Copyright>
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<AssemblyTitle>Prometheus.Client.Owin</AssemblyTitle>
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<VersionPrefix>1.5.0</VersionPrefix>
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<Authors>Sergey Kuznetsov</Authors>
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<TargetFrameworks>netstandard1.3;netstandard2.0</TargetFrameworks>
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<AssemblyName>Prometheus.Client.AspNetCore</AssemblyName>
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<PackageId>Prometheus.Client.AspNetCore</PackageId>
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<PackageTags>prometheus;metrics</PackageTags>
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<PackageIconUrl>https://image.ibb.co/k4Sc0k/prometheus.png</PackageIconUrl>
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<PackageProjectUrl>https://github.com/PrometheusClientNet/Prometheus.Client.AspNetCore</PackageProjectUrl>
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<PackageLicenseUrl>https://opensource.org/licenses/MIT</PackageLicenseUrl>
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<RepositoryType>git</RepositoryType>
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<RepositoryUrl>https://github.com/PrometheusClientNet/Prometheus.Client.AspNetCore</RepositoryUrl>
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<TreatWarningsAsErrors>true</TreatWarningsAsErrors>
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<GenerateDocumentationFile>true</GenerateDocumentationFile>
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</PropertyGroup>
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<ItemGroup>
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<PackageReference Include="Prometheus.Client" Version="1.5.0" />
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</ItemGroup>
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<ItemGroup Condition=" '$(TargetFramework)' == 'netstandard1.3'">
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<PackageReference Include="Microsoft.AspNetCore.Http.Abstractions">
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<Version>1.1.0</Version>
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</PackageReference>
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</ItemGroup>
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<ItemGroup Condition="'$(TargetFramework)' == 'netstandard2.0'">
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<PackageReference Include="Microsoft.AspNetCore.Http.Abstractions">
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<Version>2.0.0</Version>
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</PackageReference>
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</ItemGroup>
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</Project>

‎src/Prometheus.Client.AspNetCore/PrometheusExtensions.cs‎

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using System;
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using System.Threading.Tasks;
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using Prometheus.Client.Collectors;
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using Microsoft.AspNetCore.Builder;
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namespace Prometheus.Client.AspNetCore
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{
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/// <summary>
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/// PrometheusExtensions
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/// </summary>
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public static class PrometheusExtensions
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{
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/// <summary>
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/// Add PrometheusServer request execution pipeline.
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/// </summary>
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public static IApplicationBuilder UsePrometheusServer(this IApplicationBuilder app)
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{
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return UsePrometheusServer(app, null);
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}
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/// <summary>
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/// Add PrometheusServer request execution pipeline.
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/// </summary>
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public static IApplicationBuilder UsePrometheusServer(this IApplicationBuilder app, Action<PrometheusOptions> setupOptions)
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{
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var options = new PrometheusOptions();
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setupOptions?.Invoke(options);
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if (app == null)
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throw new ArgumentNullException(nameof(app));
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if (options == null)
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throw new ArgumentNullException(nameof(options));
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if (!options.MapPath.StartsWith("/"))
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throw new ArgumentException($"MapPath '{options.MapPath}' should start with '/'");
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RegisterCollectors(options);
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app.Map(options.MapPath, coreapp =>
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{
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coreapp.Run(async context =>
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{
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var req = context.Request;
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var response = context.Response;
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req.Headers.TryGetValue("Accept", out var acceptHeaders);
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var contentType = ScrapeHandler.GetContentType(acceptHeaders);
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response.ContentType = contentType;
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using (var outputStream = response.Body)
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{
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var collected = options.CollectorRegistryInstance.CollectAll();
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ScrapeHandler.ProcessScrapeRequest(collected, contentType, outputStream);
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}
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await Task.FromResult(0).ConfigureAwait(false);
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});
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});
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return app;
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}
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private static void RegisterCollectors(PrometheusOptions options)
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{
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if (options.UseDefaultCollectors)
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{
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var metricFactory = Metrics.DefaultFactory;
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if (options.CollectorRegistryInstance != CollectorRegistry.Instance)
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metricFactory = new MetricFactory(options.CollectorRegistryInstance);
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options.Collectors.AddRange(DefaultCollectors.Get(metricFactory));
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}
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options.CollectorRegistryInstance.RegisterOnDemandCollectors(options.Collectors);
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}
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}
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}

‎src/Prometheus.Client.AspNetCore/PrometheusOptions.cs‎

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using System.Collections.Generic;
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using Prometheus.Client.Collectors;
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namespace Prometheus.Client.AspNetCore
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{
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/// <summary>
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/// Options for Prometheus
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/// </summary>
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public class PrometheusOptions
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{
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/// <summary>
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/// Url, default = "/metrics"
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/// </summary>
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public string MapPath { get; set; } = "/metrics";
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/// <summary>
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/// CollectorRegistry intance
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/// </summary>
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public ICollectorRegistry CollectorRegistryInstance { get; set; } = CollectorRegistry.Instance;
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/// <summary>
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/// IOnDemandCollectors
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/// </summary>
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public List<IOnDemandCollector> Collectors { get; set; } = new List<IOnDemandCollector>();
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/// <summary>
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/// Use default collectors
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/// </summary>
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public bool UseDefaultCollectors { get; set; } = true;
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}
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}

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