A TypeScript library for generating Ethereum Name Service (ENS) namehashes per spec. Code is based on eth-ens-namehash by Nick Johnson.
npm install @wtree-id/eth-ens-namehash-ts
import { hash, normalize } from '@wtree-id/eth-ens-namehash-ts';
const hash = hash('foo.eth');
// Also supports normalizing strings to ENS compatibility:
const input = getUserInput();
const normalized = normalize(input);ENS Supports UTF-8 characters, and so many duplicate names are possible. For example:
- faceboоk.eth
- facebook.eth
The first one has non-ascii chars. (control+F on this page and search for facebook, only the second one will match).
namehash.normalize() doesn't automagically remap those, and so other precautions should be taken to avoid user phishing.
This module supports advanced TypeScript syntax, but exports an ES5-compatible module. To re-build the exported module after making changes, run npm run bundle (must have browserify installed).