Repro for issue 1224: Validate

[bkoelman]

Trying to reproduce the issue reported in #1224.

Response returned:

{
    "links": {
        "self": "/api/v1/postIts/835405"
    },
    "errors": [
        {
            "id": "9ee70a39-f314-4a7f-a7cf-6fb8e06e6680",
            "status": "422",
            "title": "Input validation failed.",
            "detail": "Error",
            "source": {
                "pointer": "/data/attributes/message"
            }
        }
    ]
}

[bkoelman]

After adding [ApiController] and adjustments, sending the next request body:

{
    "data": {
        "type": "postIts",
        "id": "835405",
        "attributes": {
            "actif": false,
            "message": "HELLO POST IT",
            "otherMessage": "HELLO POST IT",
            "refOperateur": "1"
        }
    }
}

Returns:

{
    "links": {
        "self": "/api/v1/postIts/835405"
    },
    "errors": [
        {
            "id": "ee191de9-9d51-412d-a9e1-3620d1776122",
            "links": {
                "about": "https://tools.ietf.org/html/rfc7231#section-6.5.1"
            },
            "status": "400",
            "title": "One or more validation errors occurred.",
            "detail": "Error",
            "meta": {
                "stackTrace": [
                    "JsonApiDotNetCore.Errors.UnsuccessfulActionResultException: Exception of type 'JsonApiDotNetCore.Errors.UnsuccessfulActionResultException' was thrown.",
                    "   at string JsonApiDotNetCore.Serialization.Response.JsonApiWriter.GetResponseBody(object model, HttpContext httpContext) in D:/Bart/Source/Repos/JsonApiDotNetCore/src/JsonApiDotNetCore/Serialization/Response/JsonApiWriter.cs:line 84"
                ]
            }
        },
        {
            "id": "30faa614-ea53-4795-b7ec-1dbac7f04d82",
            "links": {
                "about": "https://tools.ietf.org/html/rfc7231#section-6.5.1"
            },
            "status": "400",
            "title": "One or more validation errors occurred.",
            "detail": "The field OtherMessage must be a string or array type with a maximum length of '2'.",
            "meta": {
                "stackTrace": [
                    "JsonApiDotNetCore.Errors.UnsuccessfulActionResultException: Exception of type 'JsonApiDotNetCore.Errors.UnsuccessfulActionResultException' was thrown.",
                    "   at string JsonApiDotNetCore.Serialization.Response.JsonApiWriter.GetResponseBody(object model, HttpContext httpContext) in D:/Bart/Source/Repos/JsonApiDotNetCore/src/JsonApiDotNetCore/Serialization/Response/JsonApiWriter.cs:line 84"
                ]
            }
        }
    ]
}