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streamFileUpload.js
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streamFileUpload.js
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// Copyright 2021 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.
/**
* This application demonstrates how to perform basic operations on files with
* the Google Cloud Storage API.
*
* For more information, see the README.md under /storage and the documentation
* at https://cloud.google.com/storage/docs.
*/
function main(
bucketName = 'my-bucket',
destFileName = 'file.txt',
contents = 'this is the file content'
) {
// [START storage_stream_file_upload]
/**
* TODO(developer): Uncomment the following lines before running the sample
*/
// The ID of your GCS bucket
// const bucketName = 'your-unique-bucket-name';
// The new ID for your GCS file
// const destFileName = 'your-new-file-name';
// The content to be uploaded in the GCS file
// const contents = 'your file content';
// Imports the Google Cloud client library
const {Storage} = require('@google-cloud/storage');
// Import Node.js stream
const stream = require('stream');
// Creates a client
const storage = new Storage();
// Get a reference to the bucket
const myBucket = storage.bucket(bucketName);
// Create a reference to a file object
const file = myBucket.file(destFileName);
// Create a pass through stream from a string
const passthroughStream = new stream.PassThrough();
passthroughStream.write(contents);
passthroughStream.end();
async function streamFileUpload() {
passthroughStream.pipe(file.createWriteStream()).on('finish', () => {
// The file upload is complete
});
console.log(`${destFileName} uploaded to ${bucketName}`);
}
streamFileUpload().catch(console.error);
// [END storage_stream_file_upload]
}
main(...process.argv.slice(2));