@lsfc02 Hello! I'm here to assist you with any bugs, questions, or contributions. Let me know how I can help while we wait for a human maintainer.

To resolve the CSRF token error when updating a chart via the /api/v1/chart/{pk} endpoint in Superset version 4.0.2, you need to include a valid CSRF token in your request. You can obtain the CSRF token from the api/v1/security/csrf_token/ endpoint.

Here is an example of how you can include the CSRF token in your request using Python and the requests library:

import requests

# URL to fetch the CSRF token
csrf_token_url = 'http://your-superset-instance/api/v1/security/csrf_token/'
# URL to update the chart
update_chart_url = 'http://your-superset-instance/api/v1/chart/{pk}'

# Fetch the CSRF token
response = requests.get(csrf_token_url)
csrf_token = response.json().get('result')

# Data to update the chart
data = {
    # your chart update data here
}

# Headers including the CSRF token
headers = {
    'Content-Type': 'application/json',
    'X-CSRFToken': csrf_token
}

# Make the request to update the chart
response = requests.put(update_chart_url, json=data, headers=headers, cookies=response.cookies)

# Check the response
if response.status_code == 200:
    print('Chart updated successfully')
else:
    print('Failed to update chart:', response.content)

Make sure to replace http://your-superset-instance with the actual URL of your Superset instance and {pk} with the primary key of the chart you want to update.

The CSRF token endpoint is protected and requires proper permissions, as indicated in the superset/security/api.py file. Ensure that your user has the necessary permissions to access this endpoint.

Additionally, the ChartRestApi class in superset/charts/api.py includes the @protect() decorator on the put method, which ensures that CSRF protection is enforced. This means that including the CSRF token in your request headers is mandatory for successful updates ^[1][2][3][4].

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related: #19525