Google Drive external storage support for Nextcloud (still in Beta)

First of all, you need to enable the files_external app.

• Simply install files_external_gdrive from the Nextcloud appstore

• First, clone the repo git clone https://github.com/NastuzziSamy/files_external_gdrive.git
• Execute make install in the app directory
• And enable the app with php occ app:enable files_external_gdrive in the Nextcloud directory

In order to use the app, you need to create an OAuth2 client via: https://console.developers.google.com/apis/

Complete all needed information, as:

• App name (put "Nextcloud" so you can remember you use it for Nextcloud)
• JS origin urls
• Redirect urls (for OAuth2 callback)

Use your Google credentials to authorize access and connect to your Google account to give access to your Drive.

• Make files and directories:
  • Printable
  • Readable
  • Downloadable
  • Uploadable
  • Editable
  • Renamable
  • With the right mimetype
• Allow regular user to create its own Google Drive external storage
• Fix Oauth duplications
• Print better stats
• Update only on changes
• Optimize
• Unit tests