Parameters for POST request for new article

Hi

I’m trying to build a custom form that can post to all of my wordpress.

I want to do this by making a POST request on the page /wp-admin/post.php.

Steps that are working so far :

• logging into my site
• going to the page to post

The problem is that I get forbidden when i make a post request on it.

I Think it’s because of the parameters I’m trying to submit.
I’ve noticed that _wpnonce matters, but can someone tell me what are the others one mandatory ?

Thanks !