howto-create-serviceclient-with-net-and-azure-identity.md

title	description	author	ms.author	ms.date	ms.service	ms.custom	ms.topic
How to create a WebPubSubServiceClient with .NET and Azure Identity	How to create a WebPubSubServiceClient with .NET and Azure Identity	terencefan	tefa	11/15/2021	azure-web-pubsub	devx-track-dotnet	how-to

How to create a WebPubSubServiceClient with .NET and Azure Identity

This how-to guide shows you how to create a WebPubSubServiceClient using Microsoft Entra ID in .NET.

Requirements

• Install Azure.Identity from nuget.org.

  dotnet add package Azure.Identity

• Install Azure.Messaging.WebPubSub from nuget.org

  dotnet add package Azure.Messaging.WebPubSub

• If using DependencyInjection, install Microsoft.Extensions.Azure from nuget.org

  dotnet add package Microsoft.Extensions.Azure

Sample codes

1. Create a TokenCredential with Azure Identity SDK.

   usingAzure.Identity;namespacechatapp{publicclassProgram{publicstaticvoidMain(string[]args){varcredential=newDefaultAzureCredential();}}}

   credential can be any class that inherits from TokenCredential class.

   • EnvironmentCredential
   • ClientSecretCredential
   • ClientCertificateCredential
   • ManagedIdentityCredential
   • VisualStudioCredential
   • VisualStudioCodeCredential
   • AzureCliCredential

   To learn more, see Azure Identity client library for .NET

2. Then create a client with endpoint, hub, and credential.

   usingAzure.Identity;usingAzure.Messaging.WebPubSub;publicclassProgram{publicstaticvoidMain(string[]args){varcredential=newDefaultAzureCredential();varclient=newWebPubSubServiceClient(newUri("<endpoint>"),"<hub>",credential);}}

   Or inject it into IServiceCollections with our BuilderExtensions.

   usingSystem;usingAzure.Identity;usingMicrosoft.Extensions.Azure;usingMicrosoft.Extensions.Configuration;usingMicrosoft.Extensions.DependencyInjection;namespacechatapp{publicclassStartup{publicStartup(IConfigurationconfiguration){Configuration=configuration;}publicIConfigurationConfiguration{get;}publicvoidConfigureServices(IServiceCollectionservices){services.AddAzureClients(builder =>{varcredential=newDefaultAzureCredential();builder.AddWebPubSubServiceClient(newUri("<endpoint>"),"<hub>",credential);});}}}

   Learn how to use this client, see Azure Web PubSub service client library for .NET

Complete sample

• Simple chatroom with Microsoft Entra authorization