Extend the sending message format

[zhangwenxinag]

Hello, can I support sending html messages?
Let's say I need to send a file. But this file is already on the server. So I just need to send a file id. But I need to show the file style on the style. Only local files are currently supported, which is a shame. I'd like to expand it, but I have no ideas at the moment.

[OvidijusParsiunas]

Hi @zhangwenxinag.
Just to confirm if I understand correctly. You don't want to send the actual file, but just want to send a file id?

Could perhaps respond with something like this work? You could then use the file name to interpret what you need:
{files: [{name: 'file_1.txt'}]}

If it does not please let me know more about how your app should work
Thanks!