> ## Documentation Index
> Fetch the complete documentation index at: https://easyaf.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# WebAssemblyHostBuilder

> Extension methods for WebAssemblyHostBuilder from Microsoft.AspNetCore.Components.WebAssembly

## Definition

**Assembly:** Microsoft.AspNetCore.Components.WebAssembly.dll

**Namespace:** Microsoft.AspNetCore.Components.WebAssembly.Hosting

## Syntax

```csharp theme={"dark"}
Microsoft.AspNetCore.Components.WebAssembly.Hosting.WebAssemblyHostBuilder
```

## Summary

This type is defined in Microsoft.AspNetCore.Components.WebAssembly.

## Remarks

See [Microsoft documentation](https://learn.microsoft.com/dotnet/api/microsoft.aspnetcore.components.webassembly.hosting.webassemblyhostbuilder) for more information about the rest of the API.

## Methods

### <Icon icon="puzzle-piece" iconType="duotone" color="#419AC5" size={24} className="mr-2" /> AddBlazorEssentials <Badge color="green">Extension</Badge>

<Note>Extension method from `Microsoft.AspNetCore.Components.WebAssembly.Hosting.WebAssemblyHostBuilderExtensions`</Note>

Registers the necessary services to bootstrap BlazorEssentials, including a `ConfigurationBase`, [AppStateBase](/blazoressentials/api-reference/CloudNimble/BlazorEssentials/AppStateBase), and
[HttpClient](https://learn.microsoft.com/dotnet/api/system.net.http.httpclient)HttpClients\</see> for interacting with both the

#### Syntax

```csharp theme={"dark"}
public static Microsoft.AspNetCore.Components.WebAssembly.Hosting.WebAssemblyHostBuilder AddBlazorEssentials<TConfiguration, TAppState>(Microsoft.AspNetCore.Components.WebAssembly.Hosting.WebAssemblyHostBuilder builder, string configSectionName) where TConfiguration : CloudNimble.EasyAF.Configuration.ConfigurationBase where TAppState : CloudNimble.BlazorEssentials.AppStateBase
```

#### Parameters

| Name                | Type                                                                         | Description                                                                                                                                                     |
| ------------------- | ---------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `builder`           | `Microsoft.AspNetCore.Components.WebAssembly.Hosting.WebAssemblyHostBuilder` | The [WebAssemblyHostBuilder](/blazoressentials/api-reference/Microsoft/AspNetCore/Components/WebAssembly/Hosting/WebAssemblyHostBuilder) instance to configure. |
| `configSectionName` | `string`                                                                     | The name of the Configuration node in appsettings.json that specifies BlazorEssentials settings.                                                                |

#### Returns

Type: `Microsoft.AspNetCore.Components.WebAssembly.Hosting.WebAssemblyHostBuilder`
The

#### Type Parameters

* `TConfiguration` - The `ConfigurationBase`-derived type to register in the DI container.
* `TAppState` - The [AppStateBase](/blazoressentials/api-reference/CloudNimble/BlazorEssentials/AppStateBase)-derived type to register in the DI container.

### <Icon icon="puzzle-piece" iconType="duotone" color="#419AC5" size={24} className="mr-2" /> AddBlazorEssentials <Badge color="green">Extension</Badge>

<Note>Extension method from `Microsoft.AspNetCore.Components.WebAssembly.Hosting.WebAssemblyHostBuilderExtensions`</Note>

#### Syntax

```csharp theme={"dark"}
public static Microsoft.AspNetCore.Components.WebAssembly.Hosting.WebAssemblyHostBuilder AddBlazorEssentials<TConfiguration, TAppState, TMessageHandler>(Microsoft.AspNetCore.Components.WebAssembly.Hosting.WebAssemblyHostBuilder builder, string configSectionName) where TConfiguration : CloudNimble.EasyAF.Configuration.ConfigurationBase where TAppState : CloudNimble.BlazorEssentials.AppStateBase where TMessageHandler : System.Net.Http.DelegatingHandler
```

#### Parameters

| Name                | Type                                                                         | Description                                                                                                                                                     |
| ------------------- | ---------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `builder`           | `Microsoft.AspNetCore.Components.WebAssembly.Hosting.WebAssemblyHostBuilder` | The [WebAssemblyHostBuilder](/blazoressentials/api-reference/Microsoft/AspNetCore/Components/WebAssembly/Hosting/WebAssemblyHostBuilder) instance to configure. |
| `configSectionName` | `string`                                                                     | The name of the Configuration node in appsettings.json that specifies BlazorEssentials settings.                                                                |

#### Returns

Type: `Microsoft.AspNetCore.Components.WebAssembly.Hosting.WebAssemblyHostBuilder`

#### Type Parameters

* `TConfiguration` - The `ConfigurationBase`-derived type to register in the DI container.
* `TAppState` - The [AppStateBase](/blazoressentials/api-reference/CloudNimble/BlazorEssentials/AppStateBase)-derived type to register in the DI container.
* `TMessageHandler` - The [DelegatingHandler](https://learn.microsoft.com/dotnet/api/system.net.http.delegatinghandler)-derived type to register for the built-in HttpClients. Defaults to `BlazorEssentialsAuthorizationMessageHandler`1\`.

#### Remarks

If your *TMessageHandler* needs a constructor, register it before making this call.