signBlob.js

// Copyright 2020 Google LLC
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//    http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

'use strict';

const {auth} = require('google-auth-library');

/**
 * Use the iamcredentials API to sign a blob of data.
 */
async function main() {
  const signedData = await auth.sign('some data');
  console.log(signedData);
}

main().catch(e => {
  console.error(e);
  throw e;
});