Agent SDK

An SDK to interact with the wallet.

install either with npm or yarn

npm install @bcrl/wallet-sdk

Or include the following script tag in your html

<script
  type="module"
  src="https://cdn.jsdelivr.net/npm/@bcrl/wallet-sdk@latest/index.js"
></script>

To interact with the agent, you need a valid token for the authorization. You also need to pass the agent url and the wallet url.

JSfiddle

To play around with a minimal example, you can use this JSfiddle

Issuance

In case of issuance, you need also to pass an array of credentials.

<button id="issue">Issue</button>
<img id="code" />
<a id="link" target="_blank">Click here</a>

document.getElementById('issue').addEventListener('click', () => {
  const token = '';
  const wallet = '';
  const credentials = [];

  const issuer = new Issuer(token, wallet);

  issuer
    .issue({
      credentialDataSupplierInput: {},
      credentials,,
      user_pin_required: false,
    })
    .then((res) => {
      const qrcode = `https://api.qrserver.com/v1/create-qr-code/?size=300x300&data=${encodeURIComponent(
        res.url
      )}`;
      document.getElementById('code').setAttribute('src', qrcode);
      document.getElementById('link').setAttribute('href', res.url);
      const interval = setInterval(async () => {
        const status = await issuer.getStatus(res.id);
        switch (status) {
          case 'CREDENTIAL_ISSUED':
            clearInterval(interval);
            alert('done :)');
            break;
          case 'ERROR':
            clearInterval(interval);
            alert('error :(');
            break;
        }
      }, 1000);
    });
});

Verification

In case of verification, you need to pass the id of the credential you want to verify.

<button id="verify">Verify</button>
<img id="code" />
<a id="link" target="_blank">Click here</a>

document.getElementById('verify').addEventListener('click', () => {
  const token = '';
  const wallet = '';
  const id = '';

  const verifier = new Verifier(token, wallet);

  verifier
    .verify({
      id,
    })
    .then((res) => {
      const qrcode = `https://api.qrserver.com/v1/create-qr-code/?size=300x300&data=${encodeURIComponent(
        res.url
      )}`;
      document.getElementById('code').setAttribute('src', qrcode);
      document.getElementById('link').setAttribute('href', res.url);
      const interval = setInterval(async () => {
        const status = await verifier.getStatus(res.id, id);
        let values;
        switch (status.status) {
          case 'verified':
            clearInterval(interval);
            if (Array.isArray(status.payload.vp_token)) {
              values = status.payload.vp_token.map((vp) =>
                verifier.handleVp(vp)
              );
            } else {
              values = verifier.handleVp(status.payload.vp_token);
            }
            alert(JSON.stringify(values, null, 2));
            break;
          case 'error':
            clearInterval(interval);
            break;
        }
      }, 1000);
    });
});

Remote agent

you can also use a service token to get access to the remote agent:

import { TokenConfig, getRemoteAgent } from '@bcrl/wallet-sdk';

const auth: TokenConfig = {
  clientId: '',
  clientSecret: '',
};

getRemoteAgent('https://agent.web3.yanacocha.fit.fraunhofer.de/fit', auth).then(
  (agent) => {}
);