Web PubSub

The Azure Web PubSub service enables high-scale, real-time client-server application communication. It can ease developer burden for building applications that use, for example, live dashboards, text chat, and tracking maps. Web PubSub has functional overlap with the Azure SignalR service.

Service Overview

Supporting real-time communications between clients and servers or across clients is a common requirement for applications providing features such as live dashboards, text chat, tracking maps, alert-generating services, IoT device managers, informational feeds, and collaboration whiteboards. Azure Web PubSub facilitates building applications that use the WebSocket protocol, which is designed to enable full-duplex real-time communications and has become highly popular and broadly supported by browsers, servers, and development libraries over the past decade. 

Application clients and servers interact with instances of the Azure Web PubSub service programmatically to send and retrieve messages. A client or server sends messages to a hub hosted by the service, and subscribers to the hub can receive the messages in real time. API libraries to work with the service are provided for JavaScript, C#, Python, and Java. REST APIs into the service are also available, allowing it to be accessed from other languages and tools.