# KafkaBuilderExtensions

- Kind: `class`
- Package: [Aspire.Hosting.Kafka](/reference/api/csharp/aspire.hosting.kafka.md)
- Version: `13.4.0`
- Namespace: `Aspire.Hosting`
- Target framework: `net8.0`
- Source: [GitHub](https://github.com/microsoft/aspire/blob/cbc352350f1a9bafbaff10d14a2c8de4ac186a48/src/Aspire.Hosting.Kafka/KafkaBuilderExtensions.cs)

Provides extension methods for adding Kafka resources to the application model.

## Definition

```csharp
namespace Aspire.Hosting;

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

## Methods

- [AddKafka(IDistributedApplicationBuilder, string, int?)](/reference/api/csharp/aspire.hosting.kafka/kafkabuilderextensions/methods.md#addkafka-idistributedapplicationbuilder-string-int) : `IResourceBuilder<KafkaServerResource>` `extension` `ats export` -- Adds a Kafka resource to the application. A container is used for local development.
- [WithDataBindMount(IResourceBuilder<KafkaServerResource>, string, bool)](/reference/api/csharp/aspire.hosting.kafka/kafkabuilderextensions/methods.md#withdatabindmount-iresourcebuilder-kafkaserverresource-string-bool) : `IResourceBuilder<KafkaServerResource>` `extension` `ats export` -- Adds a bind mount for the data folder to a Kafka container resource.
- [WithDataVolume(IResourceBuilder<KafkaServerResource>, string?, bool)](/reference/api/csharp/aspire.hosting.kafka/kafkabuilderextensions/methods.md#withdatavolume-iresourcebuilder-kafkaserverresource-string-bool) : `IResourceBuilder<KafkaServerResource>` `extension` `ats export` -- Adds a named volume for the data folder to a Kafka container resource.
- [WithHostPort(IResourceBuilder<KafkaUIContainerResource>, int?)](/reference/api/csharp/aspire.hosting.kafka/kafkabuilderextensions/methods.md#withhostport-iresourcebuilder-kafkauicontainerresource-int) : `IResourceBuilder<KafkaUIContainerResource>` `extension` `ats export` -- Configures the host port that the KafkaUI resource is exposed on instead of using randomly assigned port.
- [WithKafkaUI(IResourceBuilder<KafkaServerResource>, Action<IResourceBuilder<KafkaUIContainerResource>>, string?)](/reference/api/csharp/aspire.hosting.kafka/kafkabuilderextensions/methods.md#withkafkaui-iresourcebuilder-kafkaserverresource-action-iresourcebuilder-kafkauicontainerresource-string) : `IResourceBuilder<KafkaServerResource>` `extension` `ats export` -- Adds a Kafka UI container to the application.