This code provides a function copyFileBucket that copies a file within a Google Cloud Storage bucket, utilizing Google Cloud APIs for authentication and file manipulation.

Run example

npm run import -- "copy a file in storage bucket"

copy a file in storage bucket

var importer = require('../Core');
var authorizeGoogle = importer.import("authorize google service");
var project = 'spahaha-ea443';
var qs = require('querystring');

function copyFileBucket(bucket, file) {
    var params = {project: project};
    console.log('copying file:', file)
    return authorizeGoogle()
        .then(client => client.request({
            method: 'POST',
            url: `https://www.googleapis.com/storage/v1/b/${bucket}/o/${qs.escape(file)}/rewriteTo/b/${bucket}/o/${qs.escape(file.replace(/\.html|\.htm/ig, ''))}`,
            params
        }))
}

module.exports = copyFileBucket;

// Import required modules and define constants
const importer = require('../Core');
const authorizeGoogle = importer.import('authorize google service');
const qs = require('querystring');
const PROJECT_ID ='spahaha-ea443';

/**
 * Copies a file in a Google Cloud Storage bucket.
 * 
 * @param {string} bucket - The ID of the Google Cloud Storage bucket.
 * @param {string} file - The name of the file to copy.
 * @returns {Promise} A promise that resolves when the file has been copied.
 */
async function copyFileBucket(bucket, file) {
    // Validate input parameters
    if (!bucket ||!file) {
        throw new Error('Both bucket and file are required');
    }

    // Construct the URL for the Copy request
    const url = `https://www.googleapis.com/storage/v1/b/${bucket}/o/${qs.escape(file)}/rewriteTo/b/${bucket}/o/${qs.escape(file.replace(/\.html|\.htm/ig, ''))}`;

    // Make the Copy request
    const client = await authorizeGoogle();
    return client.request({
        method: 'POST',
        url,
        params: { project: PROJECT_ID }
    });
}

module.exports = copyFileBucket;

This code defines a function copyFileBucket that copies a file from one location to another within a Google Cloud Storage bucket.

Here's a breakdown:

1. Imports:

   • Imports necessary modules:
     • importer: Likely a custom module for importing other functions or modules.
     • authorizeGoogle: A function for authenticating with Google Cloud APIs.
     • querystring: For URL encoding.

2. Constants:

   • project: Sets the Google Cloud project ID.

3. copyFileBucket Function:

   • Takes two arguments: bucket (the name of the bucket) and file (the name of the file to copy).
   • Constructs a URL for the Google Cloud Storage API's rewriteTo method, which copies a file within a bucket.
   • Uses authorizeGoogle() to obtain a Google Cloud client.
   • Makes a POST request to the constructed URL using the client, passing the project ID as a parameter.
   • Returns a promise that resolves with the response from the API.

4. Export:

   • Exports the copyFileBucket function for use in other parts of the application.