Azure Web PubSub service client library for .NET

Azure Web PubSub Service is an Azure-managed service that helps developers easily build web applications with real-time features and publish-subscribe pattern. Any scenario that requires real-time publish-subscribe messaging between server and clients or among clients can use Azure Web PubSub service. Traditional real-time features that often require polling from server or submitting HTTP requests can also use Azure Web PubSub service.

You can use this library in your app server side to manage the WebSocket client connections, as shown in below diagram:

Use this library to:

• Send messages to hubs and groups.
• Send messages to particular users and connections.
• Organize users and connections into groups.
• Close connections
• Grant, revoke, and check permissions for an existing connection

Source code | Package | API reference documentation | Product documentation | Samples

Komma igång

Installera paketet

Install the client library from NuGet:

dotnet add package Azure.Messaging.WebPubSub

Förutsättningar

• En prenumeration för Azure.
• An existing Azure Web PubSub service instance.

Create and authenticate a WebPubSubServiceClient

In order to interact with the service, you'll need to create an instance of the WebPubSubServiceClient class. To make this possible, you'll need the connection string or a key, which you can access in the Azure portal.

var serviceClient = new WebPubSubServiceClient(new Uri(endpoint), "some_hub", new AzureKeyCredential(key));

Exempel

Broadcast a text message to all clients

var serviceClient = new WebPubSubServiceClient(new Uri(endpoint), "some_hub", new AzureKeyCredential(key));

serviceClient.SendToAll("Hello World!");

Broadcast a JSON message to all clients

var serviceClient = new WebPubSubServiceClient(new Uri(endpoint), "some_hub", new AzureKeyCredential(key));

serviceClient.SendToAll(RequestContent.Create(
        new
        {
            Foo = "Hello World!",
            Bar = 42
        }),
        ContentType.ApplicationJson);

Broadcast a binary message to all clients

var serviceClient = new WebPubSubServiceClient(new Uri(endpoint), "some_hub", new AzureKeyCredential(key));

Stream stream = BinaryData.FromString("Hello World!").ToStream();
serviceClient.SendToAll(RequestContent.Create(stream), ContentType.ApplicationOctetStream);

Felsökning

Setting up console logging

You can also enable console logging if you want to dig deeper into the requests you're making against the service.

Nästa steg

Använd dessa resurser för att börja skapa ett eget program: