You can send a POST request to /api/threads/{board} with form data including text and delete_password . The saved database record will have at least the fields _id , text , created_on (date & time), bumped_on (date & time, starts same as created_on ), reported (boolean), delete_password , & replies (array).
First, where is the route that handles the post method of the /api/threads/{board}? Paste that code here (I want to make sure we understand each other ).