# MongoDBBuilderExtensions

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

Provides extension methods for adding MongoDB resources to an `Hosting.IDistributedApplicationBuilder`.

## Definition

```csharp
namespace Aspire.Hosting;

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

## Methods

- [AddDatabase(IResourceBuilder<MongoDBServerResource>, string, string?)](/reference/api/csharp/aspire.hosting.mongodb/mongodbbuilderextensions/methods.md#adddatabase-iresourcebuilder-mongodbserverresource-string-string) : `IResourceBuilder<MongoDBDatabaseResource>` `extension` `ats export` -- Adds a MongoDB database to the application model.
- [AddMongoDB(IDistributedApplicationBuilder, string, int?)](/reference/api/csharp/aspire.hosting.mongodb/mongodbbuilderextensions/methods.md#addmongodb-idistributedapplicationbuilder-string-int) : `IResourceBuilder<MongoDBServerResource>` `extension` `ats ignored` -- Adds a MongoDB resource to the application model. A container is used for local development.
- [AddMongoDB(IDistributedApplicationBuilder, string, int?, IResourceBuilder<ParameterResource>, IResourceBuilder<ParameterResource>)](/reference/api/csharp/aspire.hosting.mongodb/mongodbbuilderextensions/methods.md#addmongodb-idistributedapplicationbuilder-string-int-iresourcebuilder-parameterresource-iresourcebuilder-parameterresource) : `IResourceBuilder<MongoDBServerResource>` `extension` `ats export`
- [WithDataBindMount(IResourceBuilder<MongoDBServerResource>, string, bool)](/reference/api/csharp/aspire.hosting.mongodb/mongodbbuilderextensions/methods.md#withdatabindmount-iresourcebuilder-mongodbserverresource-string-bool) : `IResourceBuilder<MongoDBServerResource>` `extension` `ats export` -- Adds a bind mount for the data folder to a MongoDB container resource.
- [WithDataVolume(IResourceBuilder<MongoDBServerResource>, string?, bool)](/reference/api/csharp/aspire.hosting.mongodb/mongodbbuilderextensions/methods.md#withdatavolume-iresourcebuilder-mongodbserverresource-string-bool) : `IResourceBuilder<MongoDBServerResource>` `extension` `ats export` -- Adds a named volume for the data folder to a MongoDB container resource.
- [WithHostPort(IResourceBuilder<MongoExpressContainerResource>, int?)](/reference/api/csharp/aspire.hosting.mongodb/mongodbbuilderextensions/methods.md#withhostport-iresourcebuilder-mongoexpresscontainerresource-int) : `IResourceBuilder<MongoExpressContainerResource>` `extension` `ats export` -- Configures the host port that the Mongo Express resource is exposed on instead of using randomly assigned port.
- [WithInitBindMount(IResourceBuilder<MongoDBServerResource>, string, bool)](/reference/api/csharp/aspire.hosting.mongodb/mongodbbuilderextensions/methods.md#withinitbindmount-iresourcebuilder-mongodbserverresource-string-bool) : `IResourceBuilder<MongoDBServerResource>` `extension` `obsolete` `ats ignored` -- Adds a bind mount for the init folder to a MongoDB container resource.
- [WithInitFiles(IResourceBuilder<MongoDBServerResource>, string)](/reference/api/csharp/aspire.hosting.mongodb/mongodbbuilderextensions/methods.md#withinitfiles-iresourcebuilder-mongodbserverresource-string) : `IResourceBuilder<MongoDBServerResource>` `extension` `ats export` -- Copies init files into a MongoDB container resource.
- [WithMongoExpress(IResourceBuilder<T>, Action<IResourceBuilder<MongoExpressContainerResource>>, string?)](/reference/api/csharp/aspire.hosting.mongodb/mongodbbuilderextensions/methods.md#withmongoexpress-iresourcebuilder-t-action-iresourcebuilder-mongoexpresscontainerresource-string) : `IResourceBuilder<T>` `extension` `ats export` -- Adds a MongoExpress administration and development platform for MongoDB to the application model.