Runnable TypeScript examples for the infermap npm package. Each example is self-contained and progressively demonstrates more advanced usage.
From the repo root:
cd packages/infermap-js
npm install
npm run build
npm link # makes `infermap` resolvable from anywhere
cd ../..
npm install --no-save tsx # runner for TypeScript
Alternatively, run from inside a project that already depends on infermap from npm:
npm install infermap tsx
npx tsx path/to/example.ts
| # | File | What it shows |
|---|---|---|
| 01 | 01_basic_mapping.ts | Basic map() call with plain record arrays. The minimum viable integration. |
| 02 | 02_csv_file_mapping.ts | Read CSV files from disk via extractSchemaFromFile (infermap/node), then call MapEngine.mapSchemas. |
| 03 | 03_config_and_aliases.ts | Teach the AliasScorer about domain vocabulary via config.aliases; reweight or disable scorers via config.scorers. |
| 04 | 04_custom_scorer.ts | Define a domain-specific scorer with defineScorer() and plug it into the engine alongside the defaults. Jaccard over prefix/suffix synonyms. |
| 05 | 05_save_and_reuse.ts | Persist a computed mapping to JSON with mapResultToConfigJson and re-hydrate it later with fromConfig — useful for caching expensive mapping computations. |
| 06 | 06_nextjs_api_route.ts | Next.js App Router Route Handler running on the Edge Runtime. Accepts CSV text over HTTP POST, returns a normalized JSON report. Zero Node built-ins. |
| 07 | 07_database_mapping.ts | Connect to a SQLite database, extract its schema via extractDbSchema, and map it onto a canonical target loaded from a JSON schema definition file. Requires better-sqlite3. |