How to stream SSE with URLSession in Swift

Issue #1056 &#xA; Most HTTP requests are short-lived: send a request, wait for a complete response, close the connection. Server-Sent Events (SSE) breaks that pattern. The server sends a continuous stream of data over a single persistent connection, pushing new content whenever it has something to say. It&rsquo;s unidirectional (server to client only) and built on plain HTTP, which makes it…