Request payload is not validated before processing a POST request

[christian-pinto]

When processing a POST the code would accept any payload as long as it is a properly formatted RedFish object.
As an example let's take the below RedFish event object.

{
    "@odata.type": "#Event.v1_7_0.Event",
    "Id": "1",
    "Name": "Manager Created",
    "Context": "",
    "Events": [{
      "EventType": "Other",
      "EventId": "4594",
      "Severity": "Ok",
      "Message": "New Manager Available at FQDN http://foo.bar.org and Port 1234 ",
      "MessageId": "Manager.1.0.AggregationSourceDiscovered",
      "MessageArgs": [ "http://foo.bar.org", "1234" ],
      "OriginOfCondition": {
        "@odata.id": "/redfish/v1/Managers/Manager1"
      }}
    ]
}

if this is posted to /redfish/v1/Chassis the API replies with a 200 and the below Frankenstein Chassis object is created:

{
    "@Redfish.Copyright": "Copyright 2YNTSJ14-2YNTSJ21 SNIA. All rights reserved.",
    "@odata.id": "/redfish/v1Chassis/YNTSJ",
    "@odata.type": "#Event.v1_7_0.Event",
    "ChassisType": "IP based Chassis",
    "Context": "",
    "Events": [
        {
            "EventId": "4594",
            "EventType": "Other",
            "Message": "New Manager Available at FQDN http://foo.bar.org and Port 1234 ",
            "MessageArgs": [
                "http://foo.bar.org",
                "1234"
            ],
            "MessageId": "Manager.1.0.AggregationSourceDiscovered",
            "OriginOfCondition": {
                "@odata.id": "/redfish/v1/Managers/Manager1"
            },
            "Severity": "Ok"
        }
    ],
    "Id": "1",
    "Name": "Manager Created"
}

This request should instead fail because of a malformed payload. Each API endpoint should validate the payload before processing the request.