a telegram example

telegram/.env

@@ -0,0 +1 @@
+TOKEN=5292519055:AAGJPrxYs70PoIWEvLcS3oV3XZ2ldko-M4k

telegram/Makefile

@@ -0,0 +1,5 @@
+run:
+	go run -v -x send_after.go
+
+test:
+	curl https://api.telegram.org/bot5292519055:AAGJPrxYs70PoIWEvLcS3oV3XZ2ldko-M4k/getMe

telegram/send_after.go

@@ -0,0 +1,37 @@
+package main
+
+import (
+	"time"
+	"fmt"
+
+	. "github.com/enetx/g"
+	"github.com/enetx/tg/bot"
+	"github.com/enetx/tg/ctx"
+)
+
+func main() {
+	fmt.Println("started...")
+	// Read the bot token from the .env file
+	token := NewFile(".env").Read().Ok().Trim().Split("=").Collect().Last().Some()
+	b := bot.New(token).Build().Unwrap()
+
+	// Register a command handler for /start
+	b.Command("start", func(ctx *ctx.Context) error {
+		// Send an immediate message so Telegram considers the update as "handled"
+		ctx.SendMessage("Preparing self-destruct...").Send()
+
+		// Schedule a second message to be sent after 3 seconds,
+		// and automatically delete it 5 seconds after it is sent
+		ctx.SendMessage("This message will self-destruct in 5 seconds.").
+			After(3 * time.Second).       // Delay sending by 3 seconds
+			DeleteAfter(5 * time.Second). // Delete 5 seconds after it is sent
+			Send()
+
+		// Delete the original /start message (from the user)
+		// This should be done after responding to avoid Telegram resending the update
+		return ctx.DeleteMessage().Send().Err()
+	})
+
+	// Start polling for updates and drop any pending ones from before startup
+	b.Polling().DropPendingUpdates().Start()
+}