Sending Photo in TeleDart

[shakibm83]

how can I send photo with url?

this is my code:

I give a error.

Unhandled exception:
TelegramException: Attribute 'photo' can only be either io.File or String (Telegram file_id or image url)

I am completely sure that photo's url is right

[DinoLeung]

Are you completely sure the image url string includes the protocol as well as host domain name?

[shakibm83]

Thank you for answering🙏
I had a mistake. photo variable was a class and I must use ToString() function.
BTW the way for sending a image is like this:
await event.replyPhoto(url) // url like this https://cdn.pixabay.com/photo/2015/04/23/22/00/tree-736885_960_720.jpg