How to Add a Custom Layered Navigation Filter in Magento 2
Add a custom filter to Magento 2 layered navigation: when an attribute is enough, how FilterList works, and a custom filter class backed by OpenSearch facets.
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Articles about OpenSearch
4 articles
Slow Magento 2 Category Pages: A Profiling Checklist
A step by step checklist to fix slow Magento 2 category pages: cache hits, profiling, N+1 product loads, layered navigation, swatches, images and the database.
Magento 2 OpenSearch Setup and Tuning Guide for 2.4.8
How to connect Magento 2.4.8 to OpenSearch, size the JVM heap, keep the cluster green, speed up catalogsearch_fulltext reindexing and debug search problems.
Magento 2 Search Synonyms and Relevance Tuning Guide
Improve Magento 2 site search: synonym groups, search terms and redirects, attribute search weight, stopwords and how to test relevance against OpenSearch.