/// <summary>
/// Serialize all meta data on the user object into JSON for storage within UserData table.
/// </summary>
/// <param name="user"></param>
/// <returns></returns>
async Task <IEnumerable <UserData> > SerializeMetaDataAsync(User user)
{
// Get all existing user data
var data = await _userDataStore.GetByUserIdAsync(user.Id);
// Prepare list to search, use dummy list if needed
var dataList = data?.ToList() ?? new List <UserData>();
// Iterate all meta data on the supplied user object,
// check if a key already exists, if so update existing key
var output = new List <UserData>();
foreach (var item in user.MetaData)
{
var key = item.Key.FullName;
var userData = dataList.FirstOrDefault(d => d.Key == key);
if (userData != null)
{
userData.Value = item.Value.Serialize();
}
else
{
userData = new UserData()
{
Key = key,
Value = item.Value.Serialize()
};
}
output.Add(userData);
}
return(output);
}
