Get single object by attribute in Algolia

Question

I'm using the JavaScript API for Algolia and I'm trying to check for the existence of a single record. The API has clear documentation for how to do this where the ObjectID is known ( index.getObject ), but I need to check for the existence of a single result based on a different attribute:

post_id: 10050
objectID: 55345

In this case, the post_id is being set by the CMS and I want to query the Algolia index to check whether it exists (or not).

Answer 1

So far, this code seems to do the trick:

index.search({
    filters: 'post_id: 10050',
})

I'm not sure how performant this is, but it achieves the required result at the moment.