private async Task <TokenPair> GenerateToUserAsync(AuthUser user)
{
var tokens = await generator.GenerateTokenPairAsync(user);
var refresh = new RefreshToken
{
User = user,
Token = tokens.Refresh.Token,
ExpirationDateTimeUtc = tokens.Refresh.ExpirationDateTimeUtc
};
user.RefreshTokens.Add(refresh);
await userManager.UpdateAsync(user);
return(tokens);
}