POST this to https://order.dominos.com/power/validate-order

dominos-sample-request.json

{
  "Address": {
    "Street": "2764 SOMETHNING DRIVE",
    "City": "CARLSBAD",
    "Region": "CA",
    "PostalCode": "92009",
    "Type": "House"
  },
  "Coupons": [
    {
      "Code": "7039",
      "ID": 1,
      "Qty": 1
    }
  ],
  "CustomerID": "",
  "Email": "[email protected]",
  "Extension": "",
  "FirstName": "NOBODY",
  "LastName": "IN PARTICULAR",
  "LanguageCode": "en",
  "OrderChannel": "OLO",
  "OrderID": "",
  "Amounts": {},
  "OrderMethod": "Web",
  "OrderTaker": null,
  "Partners": {},
  "Payments": [],
  "Phone": "(760) 802 - 2222",
  "Products": [
    {
      "Code": "14SCREEN",
      "Qty": 1,
      "ID": 1,
      "isNew": true,
      "Options": {
        "X": {},
        "Xm": {},
        "Bq": {},
        "Xw": {},
        "P": {
          "1/4": "1"
        },
        "S": {},
        "Sb": {},
        "B": {},
        "Pm": {},
        "H": {},
        "K": {},
        "Sa": {},
        "Du": {},
        "A": {},
        "E": {},
        "Fe": {},
        "Cs": {},
        "Cp": {},
        "Z": {},
        "R": {},
        "F": {},
        "G": {},
        "J": {},
        "M": {
          "1/1": "1"
        },
        "N": {},
        "O": {},
        "Rr": {},
        "Si": {},
        "Td": {},
        "Ht": {}
      },
      "descriptions": []
    }
  ],
  "ServiceMethod": "Delivery",
  "SourceOrganizationURI": "order.dominos.com",
  "StoreID": "8380",
  "Version": "1.0",
  "Tags": {},
  "Status": ""
}