demo/explorer-api.html

<!doctype html>
<html lang="en">
    <head>
        <meta charset="utf-8">
        <meta name="viewport" content="width=device-width, minimum-scale=1, initial-scale=1, user-scalable=yes">

        <title>blockcerts-verifier demo</title>

        <script src="./@webcomponents/webcomponentsjs/webcomponents-loader.js"></script>
        <script type="module" src="./index.js"></script>

        <script>
          // HACK(keanulee): The Redux package assumes `process` exists - mock it here before
          // the module is loaded.
          window.process = {
            env: {
              NODE_ENV: 'development'
            }
          };

          // the code below is directly copied from cert-verifier-js and will not work in this example
          const explorerAPI = {
            serviceURL: 'https://insight.bitpay.com/api/tx/{transaction_id}',
            priority: 0,
            parsingFunction: function (jsonResponse) {
              if (jsonResponse.confirmations < CONFIG.MininumConfirmations) {
                throw new VerifierError(SUB_STEPS.fetchRemoteHash, getText('errors', 'parseBitpayResponse'));
              }
              const time = timestampToDateObject(jsonResponse.blocktime);
              const outputs = jsonResponse.vout;
              const lastOutput = outputs[outputs.length - 1];
              const issuingAddress = jsonResponse.vout[0].scriptPubKey.addresses[0];
              const remoteHash = stripHashPrefix(lastOutput.scriptPubKey.hex, BLOCKCHAINS.bitcoin.prefixes);
              const revokedAddresses = outputs
                .filter(output => !!output.spentTxId)
                .map(output => output.scriptPubKey.addresses[0]);

              return {
                remoteHash,
                issuingAddress,
                time,
                revokedAddresses
              };
            }
          };

          document.addEventListener('DOMContentLoaded', function () {
            const verifierElement = document.querySelectorAll('blockcerts-verifier')[0];
            verifierElement.explorerAPIs = [explorerAPI];
          });
        </script>
        <style>
            .main {
                max-width: 700px;
                margin: 0 auto;
                width: 100%;
            }
        </style>
    </head>
    <body>
        <div class="main">
            <h3>Basic blockcerts-verifier demo - Explorer API</h3>
            <blockcerts-verifier></blockcerts-verifier>
        </div>
    </body>
</html>