How to implement server-sent events (SSE) in a Django application?
Instruction: Explain the process of using server-sent events for sending real-time updates to clients in Django.
Context: This question assesses the candidate's knowledge of real-time web technologies and specifically, the implementation of SSE in Django for pushing updates to clients.
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SSE sends a one-way HTTP event stream that a browser reads with EventSource. Django can serve it with StreamingHttpResponse; Channels is not required. Under ASGI, use an async iterator and nonblocking work. A long WSGI stream instead occupies a worker for its lifetime.
This complete Django5.2 view sends three public demonstration events under ASGI:...