What is @adraffy/ens-normalize?
@adraffy/ens-normalize is an npm package designed to normalize Ethereum Name Service (ENS) names. It ensures that ENS names are in a consistent format, which is crucial for avoiding ambiguities and ensuring compatibility across different systems.
What are @adraffy/ens-normalize's main functionalities?
Normalization
This feature allows you to normalize an ENS name to ensure it is in a consistent format. The code sample demonstrates how to normalize the ENS name 'example.eth'.
const { normalize } = require('@adraffy/ens-normalize');
const normalized = normalize('example.eth');
console.log(normalized);
Validation
This feature allows you to validate an ENS name to check if it conforms to the expected format. The code sample demonstrates how to validate the ENS name 'example.eth'.
const { validate } = require('@adraffy/ens-normalize');
const isValid = validate('example.eth');
console.log(isValid);
Unicode Handling
This feature allows you to convert Punycode-encoded ENS names to their Unicode equivalents. The code sample demonstrates how to convert the Punycode-encoded ENS name 'xn--exmple-cua.eth' to its Unicode equivalent.
const { toUnicode } = require('@adraffy/ens-normalize');
const unicodeName = toUnicode('xn--exmple-cua.eth');
console.log(unicodeName);
Other packages similar to @adraffy/ens-normalize
eth-ens-namehash
The eth-ens-namehash package is another tool for generating ENS namehashes. It includes some basic normalization features but is primarily focused on the namehashing process. It is less comprehensive in normalization compared to @adraffy/ens-normalize.
punycode
The punycode package provides utilities for converting between Unicode and Punycode, which is useful for handling internationalized domain names (IDNs). While it does not specifically target ENS names, it can be used in conjunction with other packages to handle Unicode normalization.
ens-normalize.js
1-file, 1-function, 1-argument, 0-dependancy Compact ES6 Ethereum Name Service (ENS) Name Normalizer.
import {ens_normalize} from '@adraffy/ens-normalize';
let normalized = ens_normalize('🚴♂️.eth');
Instead of exposing an IDNA-like API (is_valid()
, get_mapped()
, etc.), this library converts names to tokens for use in providing a better UX for end-users. Also, see: parts.js submodule below.
let tokens = ens_tokenize('R💩\uFE0Fa\xAD./');
Independent submodules:
import {nfc, nfd} from 'dist/nf.min.js';
import {check_bidi, is_bidi_domain_name} from 'dist/bidi.min.js';
import {dom_from_tokens, use_default_style} from 'dist/parts.min.js';
Building
- Clone to access
build/
. The actual source is in build/lib-normalize.js
. You can run this file directly. - Run
node build/unicode.js download
to download data from unicode.org. - Run
node build/unicode.js parse
to parse those files into JSON files. - Run
node build/build-tables.js all
to build compressed rule payloads. - Run
node test/test-lib.js build/lib-normalize.js
to test the source template. - Run
node build/build.js
to inject the compressed tables into the source template and create dist/
files. - Run
node test/test-lib.js dist/ens-normalize.js
to test the generated library.