/
auth.js
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/
auth.js
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// Copyright 2017 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.
/**
* Demonstrates how to authenticate to Google Cloud Platform APIs using the
* Google Cloud Client Libraries.
*/
'use strict';
const authCloudImplicit = async () => {
// [START auth_cloud_implicit]
// Imports the Google Cloud client library.
const {Storage} = require('@google-cloud/storage');
// Instantiates a client. If you don't specify credentials when constructing
// the client, the client library will look for credentials in the
// environment.
const storage = new Storage();
// Makes an authenticated API request.
async function listBuckets() {
try {
const results = await storage.getBuckets();
const [buckets] = results;
console.log('Buckets:');
buckets.forEach(bucket => {
console.log(bucket.name);
});
} catch (err) {
console.error('ERROR:', err);
}
}
listBuckets();
// [END auth_cloud_implicit]
};
const authCloudExplicit = async ({projectId, keyFilename}) => {
// [START auth_cloud_explicit]
// Imports the Google Cloud client library.
const {Storage} = require('@google-cloud/storage');
// Instantiates a client. Explicitly use service account credentials by
// specifying the private key file. All clients in google-cloud-node have this
// helper, see https://github.com/GoogleCloudPlatform/google-cloud-node/blob/master/docs/authentication.md
// const projectId = 'project-id'
// const keyFilename = '/path/to/keyfile.json'
const storage = new Storage({projectId, keyFilename});
// Makes an authenticated API request.
async function listBuckets() {
try {
const [buckets] = await storage.getBuckets();
console.log('Buckets:');
buckets.forEach(bucket => {
console.log(bucket.name);
});
} catch (err) {
console.error('ERROR:', err);
}
}
listBuckets();
// [END auth_cloud_explicit]
};
const cli = require('yargs')
.demand(1)
.command(
'auth-cloud-implicit',
'Loads credentials implicitly.',
{},
authCloudImplicit
)
.command(
'auth-cloud-explicit',
'Loads credentials explicitly.',
{
projectId: {
alias: 'p',
default: process.env.GOOGLE_CLOUD_PROJECT,
},
keyFilename: {
alias: 'k',
default: process.env.GOOGLE_APPLICATION_CREDENTIALS,
},
},
authCloudExplicit
)
.example('node $0 auth-cloud-implicit', 'Loads credentials implicitly.')
.example('node $0 auth-cloud-explicit', 'Loads credentials explicitly.')
.wrap(120)
.recommendCommands()
.epilogue(
'For more information, see https://cloud.google.com/docs/authentication'
)
.help()
.strict();
if (module === require.main) {
cli.parse(process.argv.slice(2));
}