GET api/UserAccount/GetByUsername/{username}

{
  "ResponseCode": 200,
  "ResponseMessage": "User user@example.com.",
  "Data": {
    "Name": "John",
    "Surname": "Doe",
    "Email": "user@example.com",
    "Username": "user@example.com",
    "EmployeeNumber": "",
    "OldUsername": "",
    "RolePerModule": {
      "Audit": "ADMINISTRATOR",
      "Delegation": "ADMIN"
    },
    "Positions": null
  }
}

<JsonResponseModelOfUserCyyWUdKo xmlns:i="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://schemas.datacontract.org/2004/07/RGS.API.Models">
  <Data xmlns:d2p1="http://schemas.datacontract.org/2004/07/QAP.API.ModelsForClient">
    <d2p1:Email>user@example.com</d2p1:Email>
    <d2p1:EmployeeNumber></d2p1:EmployeeNumber>
    <d2p1:Name>John</d2p1:Name>
    <d2p1:OldUsername></d2p1:OldUsername>
    <d2p1:Positions xmlns:d3p1="http://schemas.microsoft.com/2003/10/Serialization/Arrays" i:nil="true" />
    <d2p1:RolePerModule xmlns:d3p1="http://schemas.microsoft.com/2003/10/Serialization/Arrays">
      <d3p1:KeyValueOfstringstring>
        <d3p1:Key>Audit</d3p1:Key>
        <d3p1:Value>ADMINISTRATOR</d3p1:Value>
      </d3p1:KeyValueOfstringstring>
      <d3p1:KeyValueOfstringstring>
        <d3p1:Key>Delegation</d3p1:Key>
        <d3p1:Value>ADMIN</d3p1:Value>
      </d3p1:KeyValueOfstringstring>
    </d2p1:RolePerModule>
    <d2p1:Surname>Doe</d2p1:Surname>
    <d2p1:Username>user@example.com</d2p1:Username>
  </Data>
  <ResponseCode>200</ResponseCode>
  <ResponseMessage>User user@example.com.</ResponseMessage>
</JsonResponseModelOfUserCyyWUdKo>