Ghost API - HTML text body empty

Developer help
1

I’m trying to create a new post using the rest API (python). My post (title, slug, etc) get created, except for the text body (formatted in HTML). I can’t figure out how to fix this. Any ideas? I tried wrapping it in: <!--kg-card-begin: html-->, that didn’t work.

This is my code:

def create_post(title, content, slug, description, status='published'):
    print(f"Creating post with title: {title}, slug: {slug}")
    print(f"Post content: {content}")

    token = generate_jwt_token(ghost_admin_api_key)
    if not token:
        print("Failed to generate JWT token. Exiting.")
        return None
    headers = {
        'Authorization': f'Ghost {token}',
        'Content-Type': 'application/json'
    }

    post_data = {
        'posts': [
            {
                'title': title,
                'slug': slug,
                'html': content,
                'status': status,
                'meta_title': title,
                'meta_description': description,
            }
        ]
    }

    print(f"Making request to URL: {ghost_admin_api_url}posts/?source=html")
    print("Request body:", post_data)

    response = requests.post(f'{ghost_admin_api_url}posts/', json=post_data, headers=headers)

    print(f"Response Status Code: {response.status_code}")
    print(f"Response Content: {response.text}")

    if response.status_code == 201:
        print('Post created successfully.')
        post_id = response.json()['posts'][0]['id']
        print('Post ID: ', post_id)
        return post_id
    else:
        print('Failed to create post.')
        try:
            error_info = response.json()
        except ValueError:
            error_info = {'error': 'Non-JSON response'}
        print(f"Error Response: {error_info}")
        return None
This is the response I'm getting. Lexical is empty.

Response Content: “mobiledoc”:null,“lexical”:"{"root":{"children":[{"children":,"direction":null,"format":"","indent":0,"type":"paragraph","version":1}]

HTML text example

<!--kg-card-begin: html-->
<h2>Introduction to English Seafood Vocabulary</h2>
<p>Seafood is an essential part of many cultures and cuisines around the world. Understanding seafood vocabulary can enrich your dining experiences and improve your English language skills. This guide will introduce you to some common terms you might encounter.</p>
<h3>Types of Seafood</h3>
<!--kg-card-end: html-->
2

See “source html” on this page:
Ghost Admin API Documentation - you need source=html as a query string (not in the request body) if you want to feed in html instead of lexical.

Note that wrapping in those comments will protect the content from being converted to native lexical format. If you want easy to edit content (not html in a card), don’t wrap it.