Sending Telegram messages with Telethon: some entity parameters work, others don't?

Question

I\'m using Telethon\'s send_message function to send messages to various chats.

Sometimes, the destination is another user (just a regular one on one chat), sometime

Answer 1

I suggest reading this section of the document (entities)

for example, I want to send the message to a user with the username: alix

client = TelegramClient('session_name',
                    api_id,
                    api_hash,
                    )
client.start()
destination_user_username='alix'
entity=client.get_entity(destination_user_username)
client.send_message(entity=entity,message="Hi")

or I want to send the message to a channel with username: test_ali3

client = TelegramClient('session_name',
                    api_id,
                    api_hash
                    )
client.start()

destination_channel_username='test_ali3'
entity=client.get_entity(destination_channel_username)
client.send_message(entity=entity,message="Hi")

or I want to send the message to a group with invite_link: https://t.me/joinchat/Bn4WIhMF1T_ZAF-yM6WbHw

client = TelegramClient('session_name',
                    api_id,
                    api_hash
                    )
client.start()
destination_group_invite_link='https://t.me/joinchat/Bn4WIhMF1T_ZAF-yM6WbHw'
entity=client.get_entity(destination_group_invite_link)
client.send_message(entity=entity,message="Hi")

I hope to be useful to you.