Ways to transfer cross-origin documents to Google Drive with the help of an API using client-side JavaScript

We are currently facing a challenge in transferring files from a URL to Google Drive within a client-side web application.

The obstacle lies in the Cross Origin Restriction of Javascript when it comes to downloading files. Essentially, giving Javascript a list of URLs results in the inability to download the files and store them in Google Drive due to their origin on a different website.

Is there an API for Google Drive that can be accessed by Javascript to initiate downloading files from URLs? If so, what is the process?

Please note: This question deviates from others on SO that inquire about obtaining files from Google Drive. Here, the focus is solely on transferring cross-origin files to Google Drive.

javascriptgoogle-drive-api

Answer №1

If the files' host server does not support CORS and you have no control over them, the standard approach to overcome this obstacle may be unavailable.

Unfortunately, Google Drive does not offer a feature to directly upload files from a URL, eliminating that option as well.

An elegant alternative could involve creating your own Drive proxy endpoint. This solution would entail developing an endpoint capable of accepting a source URL, fetching its content into a buffer, and then uploading that buffer to Drive. Such a proxy could be relatively straightforward to implement (less than 50 lines of code) and could function within a serverless environment like Appengine or AWS Lambda.

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