@haybarn/ext-a5-h1-5-6-wasm-threads

Part of @haybarn/ext-a5-h1-5-6 — the a5 extension's parent package.

Haybarn is a derived distribution of DuckDB from Query.Farm: the same SQL, APIs and database files, with signed releases, rebuilt and signed extensions, engine improvements, and supply-chain review built in.

This is the WebAssembly (threads) build of the a5 extension, built against Haybarn 1.5.6 for use with Haybarn-Wasm / duckdb-wasm.

Source: https://github.com/query-farm/a5

Why this package

Lets you bundle / self-host / version-pin the wasm extension instead of fetching it from the Haybarn CDN at runtime — handy for offline, CSP-restricted, or air-gapped duckdb-wasm apps.

Pick the variant matching the duckdb-wasm bundle your app loads: mvp, eh, or threads.

Install

npm install @haybarn/ext-a5-h1-5-6-wasm-threads

Use it (duckdb-wasm)

Resolve the bundled .wasm to a URL and point duckdb-wasm at it. With a bundler (Vite shown; webpack/esbuild use new URL(..., import.meta.url)):

import extUrl from '@haybarn/ext-a5-h1-5-6-wasm-threads/bin/a5.duckdb_extension.wasm?url';
const conn = await db.connect();
await conn.query(`INSTALL a5 FROM '${extUrl}'`);
await conn.query(`LOAD a5`);

Exact extension-loading API depends on your duckdb-wasm version; the key point is that extUrl is a local, bundler-emitted asset, not a CDN fetch. See the duckdb-wasm docs.

For automatic, native (non-wasm) installs use the meta-package @haybarn/ext-a5-h1-5-6.

Links

• @haybarn/ext-a5-h1-5-6 — the parent package for this extension
• Haybarn — what Haybarn is and how to install it

Trademark

Haybarn is an independent derived distribution of DuckDB published by Query Farm LLC. Not affiliated with or endorsed by the DuckDB Foundation. DuckDB is a trademark of the DuckDB Foundation.