How to update an already indexed document?

[h0lg]

Is using AddAsync<TObject>(TObject, CancellationToken) good for updating?

I'm using lifti to index documents that can update outside of the index - so I need to re-index them on change. I'm currently using the FullTextIndex<TKey>.AddAsync<TObject>(TObject, CancellationToken) method (the index builder knows the key via its .WithObjectTokenization().WithKey() config) for both adding and updating and it seems to work without issues. But the name AddAsync raises the question whether it's intended to be used like that or whether I should check for an already indexed document using FullTextIndex<TKey>.Metadata.Contains() and remove it before.

[mikegoatly]

As long as you've got the default duplicate key behaviour configured (https://mikegoatly.github.io/lifti/docs/index-construction/withduplicatekeybehavior/) then the index will manage the contains/remove/add process

[mikegoatly]

But that said, the docs for the AddAsync method could do with mentioning that...

[h0lg]

duplicate key behaviour

I was not aware of that - thanks for the hint and quick answer!