did-jwt-vc.js

// import { JwtCredentialPayload, createVerifiableCredentialJwt } from 'did-jwt-vc'
import { ES256KSigner, hexToBytes } from 'did-jwt';
import { createVerifiableCredentialJwt, createVerifiablePresentationJwt, verifyCredential, verifyPresentation } from 'did-jwt-vc'
import { Resolver } from 'did-resolver'
import { getResolver } from 'web-did-resolver'


// Create a singer by using a private key (hex).
const key = '8eb63d435de4d634bc5f3df79c361e9233f55c9c2fca097758eefb018c4c61df';
const signer = ES256KSigner(hexToBytes(key))

// Prepare an issuer
const issuer = {
    did: 'did:web:skounis.github.io',
    signer: signer
}

// Prepare the Verifiable Credential Payload
const vcPayload = {
  sub: 'did:web:skounis.github.io',
  nbf: 1562950282,
  vc: {
    '@context': ['https://www.w3.org/2018/credentials/v1'],
    type: ['VerifiableCredential'],
    credentialSubject: {
      degree: {
        type: 'BachelorDegree',
        name: 'Baccalauréat en musiques numériques'
      }
    }
  }
}

// Create the Verifiable Credential (JWT)
const vcJwt = await createVerifiableCredentialJwt(vcPayload, issuer)
console.log('//// Verifiable Credential:\n', vcJwt)

// Prepare the Verifiable Presentation Payload
const vpPayload = {
  vp: {
    '@context': ['https://www.w3.org/2018/credentials/v1'],
    type: ['VerifiablePresentation'],
    verifiableCredential: [vcJwt],
    foo: "bar"
  }
}

// Create the Verifiable Presentation (JWT)
const vpJwt = await createVerifiablePresentationJwt(vpPayload, issuer)
console.log('\n//// Verifiable Presentation:\n', vpJwt)

// Resolve and Verify  

// Prepare the did:web resolver
const resolver = new Resolver(getResolver())

// Verify the Credentantial and the Presentation
const verifiedVC = await verifyCredential(vcJwt, resolver)
console.log('//// Verified Credentials:\n', verifiedVC)

const verifiedVP = await verifyPresentation(vpJwt, resolver)
console.log('\n//// Verified Presentation:\n', verifiedVP)