Imports System
Imports System.Collections
Imports System.Collections.Generic
Imports System.Runtime.Serialization
Imports ServiceStack
Imports ServiceStack.DataAnnotations
Imports IDB.API.DTO.Document.Operations
Namespace Global
    Namespace IDB.API.DTO.Document.Operations
        Public Partial Class CreateDocument
            Public Overridable Property DocumentID As Guid
        End Class
        Public Partial Class CreateDocumentResponse
            Public Sub New()
                ErrorMessages = New List(Of String)
            End Sub
            Public Overridable Property IsSucces As Boolean
            Public Overridable Property Name As String
            Public Overridable Property Url As String
            Public Overridable Property WebpreviewUrl As String
            Public Overridable Property ErrorMessages As List(Of String)
        End Class
    End Namespace
End Namespace
To override the Content-type in your clients, use the HTTP Accept Header, append the .csv suffix or ?format=csv
The following are sample HTTP requests and responses. The placeholders shown need to be replaced with actual values.
POST /csv/reply/CreateDocument HTTP/1.1 
Host: doapigw.baasbv.nl 
Accept: text/csv
Content-Type: text/csv
Content-Length: length
{"DocumentID":"00000000-0000-0000-0000-000000000000"}
HTTP/1.1 200 OK
Content-Type: text/csv
Content-Length: length
{"IsSucces":false,"Name":"String","Url":"String","WebpreviewUrl":"String","ErrorMessages":["String"]}