# OpenTelemetryCollectorExtensions

- Kind: `class`
- Package: [CommunityToolkit.Aspire.Hosting.OpenTelemetryCollector](/reference/api/csharp/communitytoolkit.aspire.hosting.opentelemetrycollector.md)
- Version: `13.4.0`
- Namespace: `Aspire.Hosting`
- Target framework: `net10.0`
- Source: [GitHub](https://github.com/CommunityToolkit/Aspire/blob/d9dc6fc02412d7398c5722840513d99965a6e98f/src/CommunityToolkit.Aspire.Hosting.OpenTelemetryCollector/OpenTelemetryCollectorExtensions.cs)

Provides extension methods for adding and configuring OpenTelemetry Collector resources.

## Definition

```csharp
namespace Aspire.Hosting;

public static class OpenTelemetryCollectorExtensions
{
    // ...
}
```

## Methods

- [AddOpenTelemetryCollector(IDistributedApplicationBuilder, string, Action<OpenTelemetryCollectorSettings>)](/reference/api/csharp/communitytoolkit.aspire.hosting.opentelemetrycollector/opentelemetrycollectorextensions/methods.md#addopentelemetrycollector-idistributedapplicationbuilder-string-action-opentelemetrycollectorsettings) : `IResourceBuilder<OpenTelemetryCollectorResource>` `extension` `ats export` -- Adds an OpenTelemetry Collector container resource to the application model.
- [WithAppForwarding(IResourceBuilder<OpenTelemetryCollectorResource>)](/reference/api/csharp/communitytoolkit.aspire.hosting.opentelemetrycollector/opentelemetrycollectorextensions/methods.md#withappforwarding-iresourcebuilder-opentelemetrycollectorresource) : `IResourceBuilder<OpenTelemetryCollectorResource>` `extension` `ats export` -- Configures all compatible resources in the application to forward telemetry to this collector.
- [WithConfig(IResourceBuilder<OpenTelemetryCollectorResource>, string)](/reference/api/csharp/communitytoolkit.aspire.hosting.opentelemetrycollector/opentelemetrycollectorextensions/methods.md#withconfig-iresourcebuilder-opentelemetrycollectorresource-string) : `IResourceBuilder<OpenTelemetryCollectorResource>` `extension` `ats export` -- Adds a configuration file to the collector resource.