curl --request POST \
  --url https://api.social-api.ai/v1/platforms/facebook/logins/{loginId}/pages/{pageId}/assign \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "brand_id": "b7f9..."
}
'

const options = {
  method: 'POST',
  headers: {Authorization: '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({brand_id: 'b7f9...'})
};

fetch('https://api.social-api.ai/v1/platforms/facebook/logins/{loginId}/pages/{pageId}/assign', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://api.social-api.ai/v1/platforms/facebook/logins/{loginId}/pages/{pageId}/assign"

payload = { "brand_id": "b7f9..." }
headers = {
    "Authorization": "<api-key>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

{
  "account_id": "acc_01J...",
  "brand_id": "<string>",
  "platform_page_id": "<string>"
}

{
  "error": {
    "code": "resource.not_found",
    "message": "Account not found",
    "meta": {}
  }
}

{
  "error": {
    "code": "resource.not_found",
    "message": "Account not found",
    "meta": {}
  }
}

{
  "error": {
    "code": "resource.not_found",
    "message": "Account not found",
    "meta": {}
  }
}