usps.json

{
    "Fault": {
        "faultcode": "Client",
        "faultstring": "An exception has been raised as a result of client data.",
        "detail": {
            "Errors": {
                "ErrorDetail": {
                    "Severity": "Authentication",
                    "PrimaryErrorCode": {
                        "Code": "250003",
                        "Description": "Invalid Access License number"
                    },
                    "Location": {
                        "LocationElementName": "p2:AccessLicenseNumber",
                        "XPathOfElement": ""
                    },
                    "SubErrorCode": {
                        "Code": "01",
                        "Description": "Missing required element"
                    }
                }
            }
        }
    }
}