package main
/*
This was entirely generated by GPT4 with the prompt:
write me a simple golang server demonstrating server sent events (sse)
*/
import (
"fmt"
"net/http"
"time"
)
func main() {
http.HandleFunc("/", serveHome)
http.HandleFunc("/sse", serveSSE)
http.ListenAndServe(":8080", nil)
}
func serveHome(w http.ResponseWriter, r *http.Request) {
html := `
Server-Sent Events Demo
Server-Sent Events Demo
`
w.Header().Set("Content-Type", "text/html")
w.Write([]byte(html))
}
func serveSSE(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "text/event-stream")
w.Header().Set("Cache-Control", "no-cache")
w.Header().Set("Connection", "keep-alive")
flusher, ok := w.(http.Flusher)
if !ok {
http.Error(w, "Streaming unsupported!", http.StatusInternalServerError)
return
}
for i := 1; ; i++ {
fmt.Fprintf(w, "data: Message %d from server\n\n", i)
flusher.Flush()
time.Sleep(time.Second)
}
}