curl --request GET \
  --url https://sandbox.api.portal.io/zapier/trigger/order \
  --header 'Accept: <accept>' \
  --header 'X-MSS-API-APPID: <api-key>' \
  --header 'X-MSS-API-USERKEY: <api-key>' \
  --header 'X-MSS-CUSTOM-DATE: <api-key>' \
  --header 'X-MSS-SIGNATURE: <api-key>'

import requests

url = "https://sandbox.api.portal.io/zapier/trigger/order"

headers = {
    "Accept": "<accept>",
    "X-MSS-API-APPID": "<api-key>",
    "X-MSS-API-USERKEY": "<api-key>",
    "X-MSS-CUSTOM-DATE": "<api-key>",
    "X-MSS-SIGNATURE": "<api-key>"
}

response = requests.get(url, headers=headers)

print(response.text)

const options = {
  method: 'GET',
  headers: {
    Accept: '<accept>',
    'X-MSS-API-APPID': '<api-key>',
    'X-MSS-API-USERKEY': '<api-key>',
    'X-MSS-CUSTOM-DATE': '<api-key>',
    'X-MSS-SIGNATURE': '<api-key>'
  }
};

fetch('https://sandbox.api.portal.io/zapier/trigger/order', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

{
  "number": 936,
  "createdDate": "2030-08-21T00:22:19Z",
  "modifiedDate": "2031-01-12T00:22:19Z",
  "status": "Draft",
  "total": 796.45,
  "partCount": 134.19,
  "orderSuppliers": [
    {
      "id": 81376,
      "sum": 742.16,
      "partCount": 134.19,
      "status": "Submitted"
    }
  ],
  "id": 81376
}

{
  "responseStatus": {
    "errorCode": "Unauthorized",
    "message": "Authentication failed. Verify the HMAC headers and credentials used for the request."
  }
}