{"id":26175651,"url":"https://github.com/itn3000/opentelemetry.collector.eventsource","last_synced_at":"2026-04-18T23:34:42.653Z","repository":{"id":86513849,"uuid":"243475525","full_name":"itn3000/OpenTelemetry.Collector.EventSource","owner":"itn3000","description":"unofficial opentelemetry collector for 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unexpected eof while reading","robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":false,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["csharp","eventsource","opentelemetry"],"created_at":"2025-03-11T20:57:20.237Z","updated_at":"2026-04-18T23:34:42.641Z","avatar_url":"https://github.com/itn3000.png","language":"C#","funding_links":[],"categories":[],"sub_categories":[],"readme":"# Overview\n\n[![Nuget](https://img.shields.io/nuget/v/Unofficial.OpenTelemetry.Collector.EventSource)](https://www.nuget.org/packages/Unofficial.OpenTelemetry.Collector.EventSource)\n\nThis is the C# library for collecting [EventSource](https://docs.microsoft.com/en-us/dotnet/api/system.diagnostics.tracing.eventsource) with [opentelemetry](https://opentelemetry.io)\n\n# Usage\n\n## Installing from NuGet\n\nadd `Unofficial.OpenTelemetry.Collector.EventSource` to your nuget package reference.\n\navailable version is listed in [nuget project page](https://www.nuget.org/packages/Unofficial.OpenTelemetry.Collector.EventSource)\n\n## Initialize\n\n### Add Custom Events\n\nif you want to add your EventSource, you should use `UseEventSource(this TracerBuilder builder, EventSource ev, EventLevel level)` or\n`UseEventSource(this TracerBuilder builder, IEnumerable\u003cKeyValuePair\u003cEventSource, EventLevel\u003e\u003e events)`\nsample code is here\n\n```csharp\n// using System.Diagnostics.Tracing;\n// using OpenTelemetry.Trace;\n// using OpenTelemetry.Trace.Configuration;\n// \"YourEventSource.Log\" is static readonly instance of your custom EventSource.\nusing(var factory = TracerFactory.Create(builder =\u003e \n{\n    builder.UseEventSource(YourEventSource.Log, EventLevel.Always);\n    // add your exporter...\n}))\n{\n    // ...\n}\n```\n\n### Add Framework Events\n\nif you want to add Framework's EventSource(like \"System.Runtime\", or another EventSource you cannot get instance directly),\nset `EventSourceCollectorOption.IsEnableFunc` and pass in `UseEventSource`.\nsample code is here\n\n```csharp\n// using System.Diagnostics.Tracing;\n// using OpenTelemetry.Trace;\n// using OpenTelemetry.Trace.Configuration;\n// \"YourEventSource.Log\" is static readonly instance of your custom EventSource.\n\nusing(var factory = TracerFactory.Create(builder =\u003e \n{\n    builder.UseEventSource(EventSourceCollectorOption.Create().SetIsEnableFunc(src =\u003e\n    {\n        // if System.Threading.Tasks.TplEventSource enabled, stackoverflow error may be occured when creating span\n        if(!src.Name != \"System.Threading.Tasks.TplEventSource\")\n        {\n            Console.WriteLine($\"{src.Name} enabled\");\n            return (true, new EventEnableOption());\n        }\n        else\n        {\n            Console.WriteLine($\"{src.Name} ignored\");\n            return (false, default);\n        }\n    }));\n    // add your exporter...\n}))\n{\n    // ...\n}\n```\n\n## Using with IServiceCollection\n\n1. define your eventsource, ex: \n2. do `OpenTelemetry.Trace.Configuration.TracerBuilderExtensions.UseEventSource` with your TracerBuilder instance(this is extension method)\n\n* [basic sample is here](sample/BasicSample)\n* [events from framework sample is here](sample/SystemEventSample)\n\n# ChangeLog\n\n## 0.2.0\n\nAdd `UseEventSource(EventSourceCollectorOption)` for collecting framework events.\n\n## 0.1.0\n\nFirst 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