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htmx.org sse
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| package main | |
| import ( | |
| "fmt" | |
| "net/http" | |
| "time" | |
| "github.com/r3labs/sse/v2" | |
| ) | |
| func main() { | |
| server := sse.New() | |
| _ = server.CreateStream("chat") | |
| _ = server.CreateStream("messages") | |
| _ = server.CreateStream("notifications") | |
| mux := http.NewServeMux() | |
| mux.HandleFunc("/events", func(w http.ResponseWriter, r *http.Request) { | |
| go func() { | |
| // Received Browser Disconnection | |
| <-r.Context().Done() | |
| println("The client is disconnected here") | |
| return | |
| }() | |
| server.ServeHTTP(w, r) | |
| }) | |
| mux.HandleFunc("/chatroom", func(w http.ResponseWriter, r *http.Request) { | |
| w.Write([]byte(`<div>Hello from chat room</div>`)) | |
| }) | |
| mux.HandleFunc("/index", func(w http.ResponseWriter, r *http.Request) { | |
| w.Write([]byte(` | |
| <html> | |
| <head> | |
| <script src="https://unpkg.com/[email protected]/dist/htmx.js" integrity="sha384-yZq+5izaUBKcRgFbxgkRYwpHhHHCpp5nseXp0MEQ1A4MTWVMnqkmcuFez8x5qfxr" crossorigin="anonymous"></script> | |
| <script src="https://unpkg.com/[email protected]/sse.js"></script> | |
| </head> | |
| <body hx-ext="sse" sse-connect="/events?stream=messages"> | |
| <div > | |
| <div sse-swap="hello-post-1">one</div> | |
| </div> | |
| <div> | |
| <div sse-swap="hello-post-1">one</div> | |
| </div> | |
| <div> | |
| <div sse-swap="hello-post-1">one</div> | |
| </div> | |
| <div hx-ext="sse" sse-connect="/events?stream=notifications"> | |
| <div sse-swap="hello-post-2">one</div> | |
| </div> | |
| <div> | |
| <div hx-ext="sse" sse-connect="/events?stream=chat"> | |
| <div hx-get="/chatroom" hx-trigger="sse:chatter"> | |
| chat body reloaded | |
| </div> | |
| </div> | |
| </div> | |
| </body></html> | |
| `)) | |
| }) | |
| go func() { | |
| i := 0 | |
| for { | |
| i++ | |
| time.Sleep(1 * time.Second) | |
| server.TryPublish("messages", &sse.Event{ | |
| ID: []byte(fmt.Sprintf("%d", i)), | |
| Event: []byte("hello-post-1"), | |
| Data: []byte(`<div>Hello from sse ` + fmt.Sprintf("%d", i) + `</div>`), | |
| }) | |
| server.TryPublish("notifications", &sse.Event{ | |
| ID: []byte(fmt.Sprintf("%d", i)), | |
| Event: []byte("hello-post-2"), | |
| Data: []byte(`<div>Hello from post 2 sse ` + fmt.Sprintf("%d", i) + `</div>`), | |
| }) | |
| server.TryPublish("chat", &sse.Event{ | |
| ID: []byte(fmt.Sprintf("%d", i)), | |
| Event: []byte("chatter"), | |
| Data: []byte(`<div></div>`), | |
| }) | |
| } | |
| }() | |
| http.ListenAndServe(":9999", mux) | |
| } |
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