Do you have experience working with server-sent events (SSE)?

Yes, I have experience working with server-sent events (SSE). This technology allows a server to send a stream of updates to a client over a unidirectional HTTP connection.

In Go, SSE is typically implemented by:

• Setting the headers Content-Type: text/event-stream.
• Maintaining an open HTTP connection.
• Sending data in event format, for example:

w.Header().Set("Content-Type", "text/event-stream")
w.Header().Set("Cache-Control", "no-cache")
w.Header().Set("Connection", "keep-alive")

fmt.Fprintf(w, "data: %s\n\n", message)

SSE is useful for real-time data updates, such as notifications or news feeds, without the need for constant polling of the server.