/// <inheritdoc />
public async Task <IdentityResult> UpdateAsync(LondonTravelUser user, CancellationToken cancellationToken)
{
if (user == null)
{
throw new ArgumentNullException(nameof(user));
}
if (user.CreatedAt == DateTime.MinValue)
{
user.CreatedAt = DateTimeOffset.FromUnixTimeSeconds(user.Timestamp).UtcDateTime;
}
LondonTravelUser updated = await _client.ReplaceAsync(user.Id, user, user.ETag);
if (updated != null)
{
user.ETag = updated.ETag;
return(IdentityResult.Success);
}
else
{
return(ResultForError("Conflict", "The user could not be updated as the ETag value is out-of-date."));
}
}