@haybarn/ext-cozip-h1-5-3-wasm-threads

WebAssembly (threads) build of the cozip extension, built against Haybarn 1.5.3 for use with duckdb-wasm.

Source: https://github.com/asterisk-labs/cozip_reader

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-cozip-h1-5-3-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-cozip-h1-5-3-wasm-threads/bin/cozip.duckdb_extension.wasm?url';
const conn = await db.connect();
await conn.query(`INSTALL cozip FROM '${extUrl}'`);
await conn.query(`LOAD cozip`);

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-cozip-h1-5-3.

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.