A next-level FlutterFlow action for ultra-fast, fuzzy search across huge lists and object collections. V3 introduces multi-field/key lookup with per-field weights, typo tolerance, token/proximity scoring, synonyms & stop-words, locale/diacritics handling, and rich highlight ranges—delivering instant, ranked results without blocking the UI.

Functionality

• Works with List<String> and List<Map> using keys (dot-paths)

• Per-key weights + global boosts (exact, prefix, substring, token)

• Typo tolerance (max edit distance), token proximity, and phrase bias

• threshold, limit, offset, caseSensitive, diacritics, locale

• Synonyms & stopWords lists; include/exclude filters and pinning

• Returns ranked results with scores, match ranges (for highlighting), and indices

• Preview/stream mode for keystroke-by-keystroke suggestions

• Stable sorting with tie-breakers; optional recency/popularity boost

• Deduplicate by key; collapse duplicates with aggregator callback

• Non-blocking execution (worker isolate) + cancellable runs

• Smart caching & optional prebuilt index (eager/lazy)

• Error/empty guards and safe defaults for giant datasets

• Drop-in bindings for inputs, typeahead, lists, and pickers

• Fully themable highlight formatting via exposed ranges

Use cases

• Global app search and command palettes over multi-field records

• Product/movie/book catalogs with title, tags, author/brand fields

• CRM/contact directories with name, company, email, phone

• Knowledge base & docs search with synonyms and phrase proximity

• Admin tools: settings/logs/feature flag finders across keys

• Country/city/tag pickers powering long single/multi-selects

• Offline catalogs (travel, POS, media) with prebuilt on-device index

• Autocomplete/typeahead backends for forms, chats, and editors

• Analytics builders: metrics/dimensions/segments quick find

• Enterprise search where ranking & highlight quality matter

Keywords
fuzzy search, multi field search, weighted keys, relevance scoring, token proximity, prefix boost, substring match, typo tolerant, edit distance, threshold, case sensitive, diacritics normalization, locale aware, synonyms, stop words, ranked results, highlight ranges, indices return, result limit, offset paging, stable sort, deduplicate, recency boost, popularity boost, preview mode, cancellable worker, background isolate, caching, prebuilt index, instant suggestions, typeahead engine, autocomplete backend, large dataset search, offline search, command palette, catalog search, Flutter action, FlutterFlow action, high performance, responsive UI.