feat: use di in hc

Author: phnx47

Prometheus.Client.Examples.sln

@@ -7,7 +7,7 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ConsoleMetricServer_6.0", "
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "CoreWebWithoutExtensions_3.1", "src\CoreWebWithoutExtensions_3.1\CoreWebWithoutExtensions_3.1.csproj", "{A03FD2F8-8F18-44AB-9D01-16D15208B087}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "HealthChecks_6.0", "src\HealthChecks_6.0\HealthChecks_6.0.csproj", "{237FECAD-9D7C-43F4-A240-974A5ADE0DE7}"
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "HealthChecks", "src\HealthChecks\HealthChecks.csproj", "{237FECAD-9D7C-43F4-A240-974A5ADE0DE7}"
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AspNetCore_6.0", "src\AspNetCore_6.0\AspNetCore_6.0.csproj", "{297EA5CD-C468-40CA-A97C-8A5DC28CF701}"
 EndProject

src/HealthChecks_6.0/HealthChecks_6.0.csproj renamed to src/HealthChecks/HealthChecks.csproj

@@ -8,6 +8,7 @@
     <PackageReference Include="AspNetCore.HealthChecks.Uris" Version="6.0.3" />
     <PackageReference Include="Prometheus.Client" Version="5.2.0" />
     <PackageReference Include="Prometheus.Client.AspNetCore" Version="5.0.0" />
+    <PackageReference Include="Prometheus.Client.DependencyInjection" Version="1.4.0" />
     <PackageReference Include="Prometheus.Client.HealthChecks" Version="2.0.0" />
   </ItemGroup>
 </Project>

src/HealthChecks_6.0/Program.cs renamed to src/HealthChecks/Program.cs

@@ -8,6 +8,7 @@
 using Prometheus.Client;
 using Prometheus.Client.AspNetCore;
 using Prometheus.Client.Collectors;
+using Prometheus.Client.DependencyInjection;
 using Prometheus.Client.HealthChecks;
 
 namespace HealthChecks;
@@ -21,20 +22,18 @@ public Startup(IConfiguration configuration)
 
     public IConfiguration Configuration { get; }
 
-    // This method gets called by the runtime. Use this method to add services to the container.
     public void ConfigureServices(IServiceCollection services)
     {
         services.AddControllers();
-        services.AddSingleton<ICollectorRegistry, CollectorRegistry>();
-        services.AddSingleton<IMetricFactory, MetricFactory>();
+        services.AddMetricFactory();
+
         services
             .AddHealthChecks()
             .AddUrlGroup(new Uri("https://google.com"), "google", HealthStatus.Unhealthy)
             .AddUrlGroup(new Uri("https://invalidurl"), "invalidurl", HealthStatus.Degraded);
         services.AddPrometheusHealthCheckPublisher();
     }
 
-    // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
     public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
     {
         app.UseRouting();
@@ -46,7 +45,7 @@ public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
 
         app.UseHealthChecks("/hc", new HealthCheckOptions
         {
-            Predicate = r => true
+            Predicate = _ => true
         });
 
         app.UsePrometheusServer();