add example edit_message

examples/edit_message/main.go

@@ -0,0 +1,59 @@
+package main
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"os/signal"
+	"time"
+
+	"github.com/go-telegram/bot"
+	"github.com/go-telegram/bot/models"
+)
+
+// Send any text message to the bot after the bot has been started
+
+func main() {
+	ctx, cancel := signal.NotifyContext(context.Background(), os.Interrupt)
+	defer cancel()
+
+	opts := []bot.Option{
+		bot.WithDefaultHandler(handler),
+	}
+
+	b, err := bot.New(os.Getenv("EXAMPLE_TELEGRAM_BOT_TOKEN"), opts...)
+	if nil != err {
+		// panics for the sake of simplicity.
+		// you should handle this error properly in your code.
+		panic(err)
+	}
+
+	b.Start(ctx)
+}
+
+func handler(ctx context.Context, b *bot.Bot, update *models.Update) {
+	if update.Message == nil {
+		return
+	}
+
+	m, errSend := b.SendMessage(ctx, &bot.SendMessageParams{
+		ChatID: update.Message.Chat.ID,
+		Text:   update.Message.Text,
+	})
+	if errSend != nil {
+		fmt.Printf("error sending message: %v\n", errSend)
+		return
+	}
+
+	time.Sleep(time.Second * 2)
+
+	_, errEdit := b.EditMessageText(ctx, &bot.EditMessageTextParams{
+		ChatID:    m.Chat.ID,
+		MessageID: m.ID,
+		Text:      "New Message!",
+	})
+	if errEdit != nil {
+		fmt.Printf("error edit message: %v\n", errEdit)
+		return
+	}
+}