We are announcing the public preview of WebSocket on Azure
Front Door Standard and Premium. WebSocket is enabled by default without
customer configurations on Azure Front Door.
WebSocket enables full duplex communication between a server
and a client over a long-running TCP connection. It eliminates the needs for
polling as required in HTTP, avoids some of the overhead of HTTP, and can reuse
the same TCP connection for multiple request/responses resulting in a more
efficient utilization of resources. This enables more interactive and real-time
scenarios.
WebSocket can be used for apps or websites which require
real-time updates/communications or continuous streams of data, such as chats,
dashboard, finance stock info update, GPS, online education, live streaming and
game apps.
For more details, please refer to Azure
Front Door WebSocket documentation.