content addressed UUID using SHA-256.
npm install cuuid-sha-256content addressed UUID using SHA-256.
As defined in RFC 9562 S B.2.
Prerequisites:
* npx
``shell`
$ npx cuuid-sha-256 hi
bd97808c-95bb-8be7-84e9-89db07656caf
$ echo -n hi | npx cuuid-sha-256
bd97808c-95bb-8be7-84e9-89db07656caf
`javascript
import CUUIDSHA256 from "cuuid-sha-256"
// example from https://datatracker.ietf.org/doc/html/rfc9562#name-example-of-a-uuidv8-value-n
const cuuid = new CUUIDSHA256({
namespace: '6ba7b810-9dad-11d1-80b4-00c04fd430c8',
name: 'www.example.com',
})
if (await cuuid.toString() !== '5c146b14-3c52-8afd-938a-375d0df1fbf6') {
throw new Error(expected cuuid to be UUID from example)`
}
CUUID for Canonicalized JSON
`javascript
import CUUIDSHA256 from "cuuid-sha-256"
import { canonicalize } from 'json-canonicalize';
export async function getCUUIDForObject(object) {
const cuuid = new CUUIDSHA256({
// https://bengo.is/blogging/syntax-of-a-CUUID/#data-stream-cuuids
namespace: '026d1093-7ee7-570b-b78c-add35fa5ec5b',
name: canonicalize(object),
})
return await cuuid.toString()
}
``