Hi,
Yes, you can! Following Reverse engineer the Discourse API, you can figure out how to do it.
In your case, it’s a POST request to /post_actions, with the following possible payload:
| field | descritpion | 
|---|---|
id | 
The post ID | 
post_action_type_id | 
The post action type ID | 
message | 
Message used with notify_user and notify_moderators actions types | 
is_warning | 
Whether you flag a topic | 
take_action | 
Whether to agree with the flag and hide the post immediately | 
queue_for_review | 
Whether to queue immediately for review | 
flag_topic | 
Whether you flag a topic | 
| action type | ID | 
|---|---|
off_topic | 
3 | 
inappropriate | 
4 | 
spam | 
6 | 
notify_user | 
7 | 
notify_moderators | 
8 | 
To delete a flag, you can send a DELETE request to /post_actions/<post_id> and as payload, post_action_type_id.
Hope that helps! ![]()