public async Task <User> Handle(
FindUserByLoginAndPasswordQuery query,
CancellationToken cancellationToken
)
{
cancellationToken.ThrowIfCancellationRequested();
using (var transaction =
await _dbContext.Database.BeginTransactionAsync(IsolationLevel.RepeatableRead, cancellationToken))
{
try
{
var user = await _dbContext
.Users
.IncludeDefault()
.AsNoTracking()
.SingleOrDefaultAsync(
x => EF.Functions.Like(x.Login, query.Login),
cancellationToken
);
if (user != null && !_passwordValidator.Verify(user.PasswordHash, query.Password))
{
throw new HttpStatusCodeException(
422,
"Wrong password.",
"The user found, but the password was wrong."
);
}
transaction.Commit();
return(user);
}
catch
{
transaction.Rollback();
throw;
}
}
}