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idtokens-serverless.js
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idtokens-serverless.js
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// 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.
// sample-metadata:
// title: ID Tokens for Serverless
// description: Requests a Cloud Run or Cloud Functions URL with an ID Token.
// usage: node idtokens-serverless.js <url> [<target-audience>]
'use strict';
function main(
url = 'https://service-1234-uc.a.run.app',
targetAudience = null
) {
if (!targetAudience) {
// Use the target service's hostname as the target audience for requests.
// (For example: https://my-cloud-run-service.run.app)
const {URL} = require('url');
targetAudience = new URL(url).origin;
}
// [START cloudrun_service_to_service_auth]
// [START functions_bearer_token]
/**
* TODO(developer): Uncomment these variables before running the sample.
*/
// Example: https://my-cloud-run-service.run.app/books/delete/12345
// const url = 'https://TARGET_HOSTNAME/TARGET_URL';
// [END functions_bearer_token]
// Example (Cloud Run): https://my-cloud-run-service.run.app/
// [START functions_bearer_token]
// [END cloudrun_service_to_service_auth]
// Example (Cloud Functions): https://project-region-projectid.cloudfunctions.net/myFunction
// [START cloudrun_service_to_service_auth]
// const targetAudience = 'https://TARGET_AUDIENCE/';
const {GoogleAuth} = require('google-auth-library');
const auth = new GoogleAuth();
async function request() {
console.info(`request ${url} with target audience ${targetAudience}`);
const client = await auth.getIdTokenClient(targetAudience);
const res = await client.request({url});
console.info(res.data);
}
request().catch(err => {
console.error(err.message);
process.exitCode = 1;
});
// [END functions_bearer_token]
// [END cloudrun_service_to_service_auth]
}
const args = process.argv.slice(2);
main(...args);