Original implementation of https://github.com/Madh93/instaray

main.go

package main

import (
	"log"
	"os"
	"strings"

	tgbotapi "github.com/go-telegram-bot-api/telegram-bot-api/v5"
)

func main() {
	bot, err := tgbotapi.NewBotAPI(os.Getenv("TELEGRAM_BOT_TOKEN"))
	if err != nil {
		log.Panic(err)
	}
	log.Printf("%s is ready for the action", bot.Self.UserName)

	bot.Debug = false

	u := tgbotapi.NewUpdate(0)
	u.Timeout = 60

	updates := bot.GetUpdatesChan(u)

	for update := range updates {
		if update.Message != nil { // If we got a message
			text := update.Message.Text
			log.Printf("[%s] New message", update.Message.From.UserName)
			// Tokenize msg in words
			for _, word := range strings.Fields(text) {
				var fixed string
				// Filter
				switch {
				case strings.Contains(word, "www.instagram.com"):
					fixed = strings.ReplaceAll(word, "www.instagram.com", "www.ddinstagram.com")
				case strings.Contains(word, "https://twitter.com"):
					fixed = strings.ReplaceAll(word, "https://twitter.com", "https://fxtwitter.com")
				case strings.Contains(word, "https://x.com"):
					fixed = strings.ReplaceAll(word, "https://x.com", "https://fixupx.com")
				}
				// Send back
				if fixed != "" {
					msg := tgbotapi.NewMessage(update.Message.Chat.ID, fixed)
					bot.Send(msg)
					log.Printf("[%s] %s", bot.Self.UserName, fixed)
				}
			}
		}
	}
}