I have created Telegram bot from BotFather
and it gave me an API key. Now when I am trying to open this URL
https://api.telegram.org/bot<MYAPIKEY>/sendMessage?chat_id=@<MYTELEGRAMUSERNAME>&text=Hello
it responds me
{
"ok": false,
"error_code": 400,
"description": "Bad Request: chat not found"
}
How to fix? What I forgot to do?
I was trying to open my bot's page in telegram and type there something (it didn't respond anything).
I want my computer to send Telegram notifications to me.