Many Telegram bots (e.g., @youtube) have a button you can click on to forward messages sent by the bot. When the user clicks on this button, Telegram opens a contact list that lets the user choose who to forward the message to.
How can I send a button like this? The closest thing I can find is forwardMessage but that expects chat_id target ID as a required parameter. But I won't have this target ID until the user selects who they want to forward to.
If you want to share your content to specific chats, you have 2 options:
Option 1
If your bot has inline_mode enabled you can share content via a button that opens a inline_query in the chat selected. Basically, this is how @youtube bot works. To use this method you need to send an inline button with switch_inline_query as a field (documentation).
Example in Javascript:
bot.sendMessage(msg.chat.id, 'Share:', {
reply_markup: {
inline_keyboard: [[{
text: 'Share with your friends',
switch_inline_query: 'share'
}]]
}
})
This is the same example I use in my bot @livecoinbot, set a bitcoin address and use the share button.
Option 2
You can create a normal inline button or just simply send a link in a normal message, that will prompt the telegram client to share the content. Here is how you do it:
https://t.me/share/url?url=[url-to-send-here]&text=[text]
Example: Click here
