WebTransport is a protocol that builds on top of HTTP/3 and offers bidirectional communication between servers and apps. WebTransport offers several benefits over its predecessor, WebSockets, including faster connections, lower latency and the ability to handle both reliable and ordered data streams as well as unordered ones (such as UDP). It can handle multiple streams in the same connection without head-of-line blocking, allowing for more efficient communication in complex applications. Overall, WebTransport is suitable for a wide range of use cases, including real-time web apps, streaming media and Internet of Things (IoT) data communications. Even though WebTransport is still in the early stages — support across browsers is gradually maturing, with popular libraries such as socket.io adding support for WebTransport — our teams are currently assessing its potential for real-time IoT apps.
