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Faceting and Filtering Issue in Typesense

TLDR Hauke faced issues with facets filtering in Typesense. Kishore Nallan recommended using the instantsearch.js JS library or the multi_search endpoint for independent search queries.

1mo

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Aug 15, 2023 (1 month ago)

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Hauke

10:54 AM

Hello, I'm having an issue with facets and I'm wondering if what I'm looking for is possible:

When filtering by a faceted field, I still want to be able to see the other facet options from this field. Filters from other fields should still apply. So for example:

I have a collection of books with a year and author field. Faceting returns e.g. [2020,2021,2022] for the year. Is there a way to select books from 2020 and still have the other facet options available in the response? When I select 2020 I still want the author facets to be filtered by that query.

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Kishore Nallan

10:56 AM

You're probably looking for this feature? https://github.com/typesense/typesense/issues/943

We've implemented this, and I can share a build with you tomorrow.

Hauke

10:58 AM

Not exactly, the facets are not objects but primitive types. But right now, when I filter by year:2020 the facets in the response only include this year. I want the user to be able to see the other options as well

Kishore Nallan

11:05 AM

Ah got it, something like how it happens in this demo as you apply the facet filters? https://ecommerce-store.typesense.org/

Hauke

11:11 AM

Kishore Nallan yes, that's exactly the behaviour I'm looking for!

11:13

Hauke

11:13 AM

unfortunately my project does not run on node so I'm not sure how to apply this. Is there a special filter flag to achieve this faceting behaviour?

Kishore Nallan

11:22 AM

We integrate with instantsearch.js JS library which gives you this behavior out of the box. See the demo app uses node, but the requests are made directly from frontend.

11:22

Kishore Nallan

11:22 AM

Otherwise, you will have to use multi_search end-point to make those queries. You can look at the network inspector tab to see the queries being made and figure out what you need to do.

Hauke

12:18 PM

Thank you, I will try that. It seems that I have to make multiple requests for this to work so currently there is no server side feature for this?

12:19

Hauke

12:19 PM

if I use multi_search it will not be multiple requests but still do multiple searches on the typesense server, I presume?

Kishore Nallan

12:20 PM

It will go as a single request but inside a multi search request you can have independent search queries

Hauke

12:27 PM

Thanks - I think I know what to do now

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