curl --request POST \
  --url https://omnicommerce.sg/api/v1/promotions \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "name": "Christmas",
  "discountType": "fixed_amount",
  "discountValue": 12,
  "targetStores": [
    {
      "marketplace": "shopee",
      "country": "singapore",
      "storeId": "115085776"
    }
  ]
}
'

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    name: 'Christmas',
    discountType: 'fixed_amount',
    discountValue: 12,
    targetStores: [{marketplace: 'shopee', country: 'singapore', storeId: '115085776'}]
  })
};

fetch('https://omnicommerce.sg/api/v1/promotions', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://omnicommerce.sg/api/v1/promotions"

payload = {
    "name": "Christmas",
    "discountType": "fixed_amount",
    "discountValue": 12,
    "targetStores": [
        {
            "marketplace": "shopee",
            "country": "singapore",
            "storeId": "115085776"
        }
    ]
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

{
  "promotion": {}
}