public async Task <TEntity> AddAsync(TEntity entity)
{
if (entity == null)
{
throw new ArgumentNullException($"{nameof(AddAsync)} entity must not be null");
}
try
{
await VisitContext.AddAsync(entity);
await VisitContext.SaveChangesAsync();
return(entity);
}
catch (Exception ex)
{
throw new Exception($"{nameof(entity)} could not be saved {ex.Message}");
}
}