Box CORS

This module allows users to generate access token dynamically and
allows users to upload files to box.com through CORS method with out uploading the files to local file system.

This module requires a Box Application to be created from
https://app.box.com/developers/services. Please specify the urls of the website in the configuration settings.

After that CORS support needs to be enabled for the App by raising a support ticket at https://support.box.com/hc/en-us/requests/new.

Please generate the access and refresh tokens from
http://box-token-generator.herokuapp.com/ while updating the configurations for the first time. Don't forget change the redirect uri to above url in the OAUTH2 parameter section of your App in box. Please regenerate tokens if unauthorized access or any other ajax related errors are coming.

For configuring your module to accept CORS uploads, go to the
admin/config/media/box_cors page on your admin site, fill in the details related the application and folder id and submit it.

To enable the CORS Upload widget, create a new file field (or edit an existing one) with the "Box CORS File Upload" widget. This will switch out the usual file upload mechanism provided by Drupal with one that looks the same, but sends uploaded files directly to Box, rather than sending them to your Drupal server first.

This module provides following functionalities:

1. Generate access tokens dynamically
2. Allow users to upload files to Box
3. Allow users to delete files from Box as they remove files from drupal file fields.
4. Allow users to fetch thumbnails of assets uploaded in Box
5. Allow users to download the files directly without box preview and authentication.

It turned out for some users / account the refresh tokens obtained via https://box-token-generator.herokuapp.com/ does not work. There is an alternative, which can be used https://box-oauth2-mvc.azurewebsites.net instead solved the issue.