The @cef-ebsi/ebsi-did-resolver library supports the did:ebsi method.
In order to resolve DID documents, the EBSI DID resolver requires the did-resolver library, which is the primary interface for resolving DIDs.
Installation
npm install @cef-ebsi/ebsi-did-resolver
or if you use yarn:
yarn add @cef-ebsi/ebsi-did-resolver
Resolving a DID document
The library provides a resolver that is meant to be used through the did-resolver aggregator.
import { Resolver } from "did-resolver";
import { getResolver } from "@cef-ebsi/ebsi-did-resolver";
// You must set the address of the DID Registry to be used in order to resolve Legal Entities DID documents
const resolverConfig = {
registry: "https://api-pilot.ebsi.eu/did-registry/v4/identifiers",
};
// getResolver will return an object with a key/value pair of { "ebsi": resolver } where resolver is a function used by the generic DID resolver.
const ebsiResolver = getResolver(resolverConfig);
const didResolver = new Resolver(ebsiResolver);
didResolver
.resolve("did:ebsi:zub5ZZUfHLLptCduwEy8xRj")
.then((doc) => console.log);
// You can also use ES7 async/await syntax
const doc = await didResolver.resolve("did:ebsi:zub5ZZUfHLLptCduwEy8xRj");
Creating a DID
The library exposes a method allowing you to create a DID from the given subject identifier bytes:
import { util } from "@cef-ebsi/ebsi-did-resolver";
import { randomBytes } from "node:crypto";
const subjectIdentifierBytes = randomBytes(16); // An array of 16 random bytes
const did = util.createDid(subjectIdentifierBytes);
// Example: "did:ebsi:ztRBFfMCY7VAGHH1Ba8Q5o9"