App from telebot

Signed-off-by: Terekhin Alexandr <alex@bearns.me>

go.mod

@@ -0,0 +1,3 @@
+module bearns.me/didinst/tg-bot-example
+
+go 1.15

main.go

@@ -0,0 +1,44 @@
+package main
+
+import (
+	"log"
+	"os"
+
+	tb "gopkg.in/tucnak/telebot.v2"
+)
+
+func main() {
+    var (
+        port      = os.Getenv("PORT")
+        publicURL = os.Getenv("PUBLIC_URL")
+        token     = os.Getenv("TOKEN")
+        apiURL	= os.Getenv("API_URL")
+    )
+
+    webhook := &tb.Webhook{
+        Listen:   ":" + port,
+        Endpoint: &tb.WebhookEndpoint{PublicURL: publicURL},
+    }
+
+    pref := tb.Settings{
+        Token:  token,
+        Poller: webhook,
+        URL:	 apiURL,
+    }
+
+    b, err := tb.NewBot(pref)
+    if err != nil {
+        log.Fatal(err)
+    }	
+
+	if err != nil {
+		log.Fatal(err)
+		return
+	}
+
+	b.Handle("/hello", func(m *tb.Message) {
+		b.Send(m.Sender, "Hello World!")
+	})
+
+	b.Start()
+}