telegram-bot-api/docs/examples/command-handling.md

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# Command Handling
This is a simple example of changing behavior based on a provided command.
```go
package main
import (
"log"
"os"
"github.com/go-telegram-bot-api/telegram-bot-api"
)
func main() {
bot, err := tgbotapi.NewBotAPI(os.Getenv("TELEGRAM_APITOKEN"))
if err != nil {
log.Panic(err)
}
bot.Debug = true
log.Printf("Authorized on account %s", bot.Self.UserName)
u := tgbotapi.NewUpdate(0)
u.Timeout = 60
updates := bot.GetUpdatesChan(u)
for update := range updates {
if update.Message == nil { // ignore any non-Message updates
continue
}
if !update.Message.IsCommand() { // ignore any non-command Messages
continue
}
// Create a new MessageConfig. We don't have text yet,
// so we leave it empty.
msg := tgbotapi.NewMessage(update.Message.Chat.ID, "")
// Extract the command from the Message.
switch update.Message.Command() {
case "help":
msg.Text = "I understand /sayhi and /status."
case "sayhi":
msg.Text = "Hi :)"
case "status":
msg.Text = "I'm ok."
default:
msg.Text = "I don't know that command"
}
if _, err := bot.Send(msg); err != nil {
log.Panic(err)
}
}
}
```