generate signed url for google cloud storage in javascript

signed-url-gcs.js

const { Storage } = require('@google-cloud/storage');

const storage = new Storage({
  keyFilename: '<file_path>',
  projectId: '<projectId>',
});

async function generateSignedUrl() {
  // These options will allow temporary write access to the file
  const options = {
    version: 'v4',
    action: 'write',
    expires: Date.now() + 15 * 60 * 1000, // 15 minutes
    contentType: 'image/jpeg',
  };

  // Get a v4 signed URL for uploading file
  const [url] = await storage
    .bucket('<bucket-name>')
    .file('<upload path>')
    .getSignedUrl(options);

  console.log('Generated PUT signed URL:');
  console.log(url);
  
  return url;
}

generateSignedUrl().catch((err) => console.error(err));