# OrleansClientGenericHostExtensions Methods [Type overview](/orleans/docs/api/csharp/microsoft.orleans.core/microsoft.extensions.hosting.orleansclientgenerichostextensions/) ## AddOrleansClient(IServiceCollection, Action<IClientBuilder>) {#addorleansclient-this-microsoft-extensions-dependencyinjection-iservicecollectio-6d7878cf} [Dedicated page](/orleans/docs/api/csharp/microsoft.orleans.core/microsoft.extensions.hosting.orleansclientgenerichostextensions/methods/addorleansclient-this-microsoft-extensions-dependencyinjection-iservicecollectio-6d7878cf/) [Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.Core/Hosting/OrleansClientGenericHostExtensions.cs#L160-L164) ```csharp public static IServiceCollection AddOrleansClient(this IServiceCollection services, Action configureDelegate) ``` Configures the service collection to host an Orleans client. ### Parameters - `services` (`IServiceCollection`): The service collection. - `configureDelegate` (`Action`): The delegate used to configure the client. ### Returns The service collection. ### Exceptions - `System.ArgumentNullException`: `services` was null or `configureDelegate` was null. ## AddOrleansClient(IServiceCollection, IConfiguration, Action<IClientBuilder>) {#addorleansclient-this-microsoft-extensions-dependencyinjection-iservicecollectio-17f71f18} [Dedicated page](/orleans/docs/api/csharp/microsoft.orleans.core/microsoft.extensions.hosting.orleansclientgenerichostextensions/methods/addorleansclient-this-microsoft-extensions-dependencyinjection-iservicecollectio-17f71f18/) [Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.Core/Hosting/OrleansClientGenericHostExtensions.cs#L182-L186) ```csharp public static IServiceCollection AddOrleansClient(this IServiceCollection services, IConfiguration configuration, Action configureDelegate) ``` Configures the service collection to host an Orleans client. ### Parameters - `services` (`IServiceCollection`): The service collection. - `configuration` (`IConfiguration`): The configuration. - `configureDelegate` (`Action`): The delegate used to configure the client. ### Returns The service collection. ### Exceptions - `System.ArgumentNullException`: `services` was null or `configureDelegate` was null. ## UseOrleansClient(HostApplicationBuilder) {#useorleansclient-this-microsoft-extensions-hosting-hostapplicationbuilder-ecc7bce1} [Dedicated page](/orleans/docs/api/csharp/microsoft.orleans.core/microsoft.extensions.hosting.orleansclientgenerichostextensions/methods/useorleansclient-this-microsoft-extensions-hosting-hostapplicationbuilder-ecc7bce1/) [Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.Core/Hosting/OrleansClientGenericHostExtensions.cs) ```csharp public static HostApplicationBuilder UseOrleansClient(this HostApplicationBuilder hostAppBuilder) ``` Configures the host app builder to host an Orleans client. ### Parameters - `hostAppBuilder` (`HostApplicationBuilder`): The host app builder. ### Returns The host builder. ### Exceptions - `System.ArgumentNullException`: `hostAppBuilder` was null. ## UseOrleansClient(HostApplicationBuilder, Action<IClientBuilder>) {#useorleansclient-this-microsoft-extensions-hosting-hostapplicationbuilder-system-bcd75c2f} [Dedicated page](/orleans/docs/api/csharp/microsoft.orleans.core/microsoft.extensions.hosting.orleansclientgenerichostextensions/methods/useorleansclient-this-microsoft-extensions-hosting-hostapplicationbuilder-system-bcd75c2f/) [Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.Core/Hosting/OrleansClientGenericHostExtensions.cs) ```csharp public static HostApplicationBuilder UseOrleansClient(this HostApplicationBuilder hostAppBuilder, Action configureDelegate) ``` Configures the host app builder to host an Orleans client. ### Parameters - `hostAppBuilder` (`HostApplicationBuilder`): The host app builder. - `configureDelegate` (`Action`): The delegate used to configure the client. ### Returns The host builder. ### Exceptions - `System.ArgumentNullException`: `hostAppBuilder` was null or `configureDelegate` was null. ## UseOrleansClient(IHostApplicationBuilder) {#useorleansclient-this-microsoft-extensions-hosting-ihostapplicationbuilder-6b8ee651} [Dedicated page](/orleans/docs/api/csharp/microsoft.orleans.core/microsoft.extensions.hosting.orleansclientgenerichostextensions/methods/useorleansclient-this-microsoft-extensions-hosting-ihostapplicationbuilder-6b8ee651/) [Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.Core/Hosting/OrleansClientGenericHostExtensions.cs) ```csharp public static IHostApplicationBuilder UseOrleansClient(this IHostApplicationBuilder hostAppBuilder) ``` ### Parameters - `hostAppBuilder` (`IHostApplicationBuilder`): The host app builder. ### Returns The host builder. ### Exceptions - `System.ArgumentNullException`: `hostAppBuilder` was null. ## UseOrleansClient(IHostApplicationBuilder, Action<IClientBuilder>) {#useorleansclient-this-microsoft-extensions-hosting-ihostapplicationbuilder-syste-d1df0fbf} [Dedicated page](/orleans/docs/api/csharp/microsoft.orleans.core/microsoft.extensions.hosting.orleansclientgenerichostextensions/methods/useorleansclient-this-microsoft-extensions-hosting-ihostapplicationbuilder-syste-d1df0fbf/) [Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.Core/Hosting/OrleansClientGenericHostExtensions.cs) ```csharp public static IHostApplicationBuilder UseOrleansClient(this IHostApplicationBuilder hostAppBuilder, Action configureDelegate) ``` Configures the host app builder to host an Orleans client. ### Parameters - `hostAppBuilder` (`IHostApplicationBuilder`): The host app builder. - `configureDelegate` (`Action`): The delegate used to configure the client. ### Returns The host builder. ### Exceptions - `System.ArgumentNullException`: `hostAppBuilder` was null or `configureDelegate` was null. ## UseOrleansClient(IHostBuilder) {#useorleansclient-this-microsoft-extensions-hosting-ihostbuilder-00ebc272} [Dedicated page](/orleans/docs/api/csharp/microsoft.orleans.core/microsoft.extensions.hosting.orleansclientgenerichostextensions/methods/useorleansclient-this-microsoft-extensions-hosting-ihostbuilder-00ebc272/) [Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.Core/Hosting/OrleansClientGenericHostExtensions.cs#L102) ```csharp public static IHostBuilder UseOrleansClient(this IHostBuilder hostBuilder) ``` Configures the host builder to host an Orleans client. ### Parameters - `hostBuilder` (`IHostBuilder`): The host builder. ### Returns The host builder. ### Exceptions - `System.ArgumentNullException`: `hostBuilder` was null. ## UseOrleansClient(IHostBuilder, Action<HostBuilderContext, IClientBuilder>) {#useorleansclient-this-microsoft-extensions-hosting-ihostbuilder-system-action-mi-63bab8e0} [Dedicated page](/orleans/docs/api/csharp/microsoft.orleans.core/microsoft.extensions.hosting.orleansclientgenerichostextensions/methods/useorleansclient-this-microsoft-extensions-hosting-ihostbuilder-system-action-mi-63bab8e0/) [Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.Core/Hosting/OrleansClientGenericHostExtensions.cs) ```csharp public static IHostBuilder UseOrleansClient(this IHostBuilder hostBuilder, Action configureDelegate) ``` Configures the host builder to host an Orleans client. ### Parameters - `hostBuilder` (`IHostBuilder`): The host builder. - `configureDelegate` (`Action`): The delegate used to configure the client. ### Returns The host builder. ### Exceptions - `System.ArgumentNullException`: `hostBuilder` was null or `configureDelegate` was null. ## UseOrleansClient(IHostBuilder, Action<IClientBuilder>) {#useorleansclient-this-microsoft-extensions-hosting-ihostbuilder-system-action-or-a52bda24} [Dedicated page](/orleans/docs/api/csharp/microsoft.orleans.core/microsoft.extensions.hosting.orleansclientgenerichostextensions/methods/useorleansclient-this-microsoft-extensions-hosting-ihostbuilder-system-action-or-a52bda24/) [Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.Core/Hosting/OrleansClientGenericHostExtensions.cs) ```csharp public static IHostBuilder UseOrleansClient(this IHostBuilder hostBuilder, Action configureDelegate) ``` Configures the host builder to host an Orleans client. ### Parameters - `hostBuilder` (`IHostBuilder`): The host builder. - `configureDelegate` (`Action`): The delegate used to configure the client. ### Returns The host builder. ### Exceptions - `System.ArgumentNullException`: `hostBuilder` was null or `configureDelegate` was null.