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main.go
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main.go
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package main
import (
"flag"
"fmt"
"log"
"net"
"os"
"github.com/igungor/tlbot"
)
// flags
var (
token = flag.String("token", "", "telegram bot token")
webhook = flag.String("webhook", "", "webhook url")
host = flag.String("host", "127.0.0.1", "host to listen to")
port = flag.String("port", "1986", "port to listen to")
)
func usage() {
fmt.Fprintf(os.Stderr, "echobot is an echo server for testing Telegram bots\n\n")
fmt.Fprintf(os.Stderr, "usage:\n")
fmt.Fprintf(os.Stderr, " echobot -token <insert-your-telegrambot-token> -webhook <insert-your-webhook-url>\n\n")
fmt.Fprintf(os.Stderr, "flags:\n")
flag.PrintDefaults()
os.Exit(2)
}
func main() {
log.SetFlags(0)
log.SetPrefix("echobot: ")
flag.Usage = usage
flag.Parse()
if *webhook == "" {
log.Printf("missing webhook parameter\n\n")
flag.Usage()
}
if *token == "" {
log.Printf("missing token parameter\n\n")
flag.Usage()
}
b := tlbot.New(*token)
err := b.SetWebhook(*webhook)
if err != nil {
log.Fatal(err)
}
messages := b.Listen(net.JoinHostPort(*host, *port))
for msg := range messages {
go func() {
// echo the message as *bold*
txt := "*" + msg.Text + "*"
err := b.SendMessage(msg.Chat.ID, txt, tlbot.ModeMarkdown, false, nil)
if err != nil {
log.Printf("Error while sending message. Err: %v\n", err)
}
}()
}
}