Getting Started with Wasm

Minimum Requirements

• Node.js (>= v20)

Install the Library

If your project does not contain it already, install the peer dependency @iota/iota-sdk as well.

npm

npm install @iota/iota-sdk

Yarn

yarn add @iota/iota-sdk

pnpm

pnpm add @iota/iota-sdk

You can install the latest beta version of the library by running the following command:

npm

npm install @iota/notarization@latest

Yarn

yarn add @iota/notarization@latest

pnpm

pnpm add @iota/notarization@latest

Build the Library

Alternatively, you can build the bindings to work with currently unreleased features. You can find instructions for this in the notarization repository.

Usage in Node.js and Web

The Wasm packages are bundled for both Node.js and web. To use them, you must import them from the correct entry point:

Node.js

import { ... } from '@iota/notarization/node';

Web

import { ... } from '@iota/notarization/web';

Usage Examples

Typescript (Node.js)

bindings/wasm/notarization_wasm/examples/src/01_create_locked.ts

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See full example on GitHub

Typescript (Web)

import { TimeLock } from "@iota/notarization/web";
import { strict as assert } from "assert";
import { getFundedClient } from "./util";

/* Demonstrate how to create a Locked Notarization and publish it. */
export async function createLocked(): Promise<void> {
    console.log("Creating a simple locked notarization example");

    // create a new client that offers notarization related functions
    const notarizationClient = await getFundedClient();

    // Calculate an unlock time (24 hours from now) to be used for deleteLock
    const delete_unlock_at = Math.round(Date.now() / 1000 + 86400); // 24 hours

    const utf8Encode = new TextEncoder();

    // ... Rest of the code
}

See utils for details about the implementations about the helper functions used here.

API Reference

For complete API documentation, see the WASM API Reference.

Examples

You can find more usage examples and tutorials in the notarization examples repository.