SimpleTextSearch for Plain JSON Documents

If you want a practical default without assembling your own BoolQuery, Querylight TS can build a search bundle from plain JSON documents and run a broader lexical + fuzzy search for you.

Beginner setup

import { createSimpleTextSearchIndex, simpleTextSearch } from "@tryformation/querylight-ts";

const search = createSimpleTextSearchIndex({
  documents: [
    {
      id: "range-filters",
      title: "RangeQuery Over Lexical Fields",
      description: "Use lexical ranges over sortable string values.",
      body: "RangeQuery compares terms lexically."
    }
  ],
  primaryFields: ["title"],
  secondaryFields: ["description", "body"]
});

const hits = simpleTextSearch(search, { query: "range fi", limit: 5 });

What it does

• Indexes the declared primary and secondary fields.
• Builds default prefix support for incomplete queries.
• Builds a fuzzy side index for typo-tolerant matching.
• Fuses the lexical and fuzzy rankings with reciprocal rank fusion.

The returned bundle also exposes the underlying DocumentIndex so you can graduate to custom queries later without re-indexing your data.

If you need highlighting, keep retrieval and highlighting separate: use simpleTextSearch to rank results, then call documentIndex.highlight(...) on the returned ids for fields such as title and body.

For a fuller walkthrough, including the equivalent manual setup and a build-time browser architecture, see Getting Started with Browser Search. For the offset-based highlighter API, see Highlighting with Querylight TS.