I can't update blocks in Notion API

Question

How can I update my block with Notion? I've tried to follow the instructions on how to update the API but failed. Even when using requests.patch , the response text doesn't change.

Here's the code:

import json, requests
import dotenv, os

def main():
    dotenv.load_dotenv(dotenv.find_dotenv())
    TOKEN = os.environ.get("TOKEN")
    BLOCK_ID = os.environ.get("BLOCK_ID")
    headers = {
        "Authorization": "Bearer " + TOKEN,
        "Notion-Version": "2021-08-16"
    }

    new_body = {
        "paragraph": {
            "text": [{
                "text": {
                    "content": "bye bye"
                }
            }]
        }
    }

    readurl = f"https://api.notion.com/v1/blocks/{BLOCK_ID}"

    # res = requests.request("PATCH", readurl, headers=headers, data=json.dumps(new_body))
    res = requests.patch(readurl, headers=headers, data=new_body)
    print(res.status_code)
    print(json.dumps(json.loads(res.text), indent=2))

if __name__ == "__main__":
    main()

The status code and text are:

200
{
  # other properties... then,
  "paragraph": {
    "text": [
      {
        "type": "text",
        "text": {
          "content": "hello there!",
          "link": null
        },
        "annotations": {
          "bold": true,
          "italic": false,
          "strikethrough": false,
          "underline": false,
          "code": false,
          "color": "default"
        },
        "plain_text": "hello there!",
        "href": null
      }
    ]
  }
}

Answer 1

cause u miss Content_Type on header

try change to

    headers = {
        "Authorization": "Bearer " + TOKEN,
        "Notion-Version": "2021-08-16"
        "Content-Type": "application/json"
    }

the data value will ignore when no content-Type on header, so the 200 respond will show as no data value provide for change.