use ably

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

test3/main.go

@@ -0,0 +1,59 @@
+package main
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"os"
+
+	ably "github.com/ably/ably-go/ably"
+)
+
+func main() {
+	ctx := context.Background()
+	c, err := ably.NewRealtime(
+		ably.WithAutoConnect(true),
+		ably.WithToken(os.Args[1]),
+		// ably.WithLogLevel(ably.LogDebug),
+		ably.WithAuthMethod(http.MethodGet),
+		ably.WithUseTokenAuth(true),
+		ably.WithRealtimeHost("realtime.pa.highwebmedia.com"),
+	)
+	if err != nil {
+		panic(err)
+	}
+
+	rc := c.Channels.Get("room:tip_alert:" + os.Args[2])
+	if err := rc.Attach(ctx); err != nil {
+		panic(err)
+	}
+	defer func() {
+		if err := rc.Detach(ctx); err != nil {
+			panic(err)
+		}
+	}()
+
+	type donateMsg struct {
+		Name   string `json:"to_username"`
+		From   string `json:"from_username"`
+		Amount int64  `json:"amount"`
+	}
+
+	cancel, err := rc.SubscribeAll(ctx, func(msg *ably.Message) {
+		donate := &donateMsg{}
+		if err := json.Unmarshal([]byte(msg.Data.(string)), donate); err != nil {
+			fmt.Println(err.Error())
+			return
+		}
+		if len(donate.From) > 3 {
+			fmt.Println(donate.From, "send ", donate.Amount, "tokens")
+		}
+	})
+	if err != nil {
+		panic(err)
+	}
+	defer cancel()
+	defer c.Close()
+	select {}
+}