Apache Solr Search API

The Solr Search API provides HTTP endpoints for full-text document search, including query parsers (Standard, DisMax, Extended DisMax), JSON Query DSL, faceting and JSON Facet API, spell checking, suggestions, MoreLikeThis, spatial search, dense vector search, result grouping, highlighting, and result clustering. Queries are submitted to the /select handler and support complex relevancy scoring with Learning to Rank.