Permission restricted imports for Deno.

import {
  importw,
  release,
  worker,
} from "https://deno.land/x/[email protected]/mod.ts";

// Import module from within a worker.
const { log, add, [release]: terminate, [worker]: workerRef } = await importw(
  "https://deno.land/x/[email protected]/examples/basic/exampleMod.ts",
  {
    name: "exampleWorker",
    deno: false,
  },
);

// Have access to the underlying Worker
console.log(workerRef.constructor.name); // Worker

// Run code within the Worker
await log(`add(40, 2) in a worker:`, await add(40, 2));

// Gracefully release Worker resources
await terminate();

This module allows users to import modules from within a Deno Worker and expose the methods to the main runtime.

This allows for a degree of isolation around the imported module, and allows consumers to restrict an imported module's access to the Deno namespace and / or privileged operations.

Note: this module does not provide full isolation as Workers run in-process. If your code is long running you may be vulnerable to side channel timing attacks.

This module consists of ports / adaptions of Comlink and import-from-worker to create the bridge between main runtime and Worker.

Please refer to examples README.

Contributing guide

importw is licensed under the MIT License.

This module makes use of several ported sub-modules, each containing their original license.