This project provides a Haskell library and command-line interface for Google services such as Google Storage, Contacts, Books, etc. The package and on-line documentation is available from Hackage.

For OAuth 2.0, the following operations are supported:

• Forming a URL for authorizing one or more Google APIs
• Exchanging an authorization code for tokens
• Refreshing tokens
• Validating tokens

For the Google Storage API, the following operations are supported:

• GET Service
• PUT Bucket
• GET Bucket
• DELETE Bucket
• GET Object
• PUT Object
• HEAD Object
• DELETE Object

Operations in the Google Fusion Tables API are also supported.

For the unofficial Google Bookmarks API, the following operations are supported:

• List bookmarks

For the Google Books API, the following operations are supported:

• List bookshelves in My Library
• List books in My Library

For the Google Contacts API, the following operations are supported:

• Downloading a full list of contacts in XML format
• Extracting and decrypting GnuPG/PGP text in contacts' Notes fields

For the Picasa API, the following operations are supported:

• Listing albums
• Listing photos in an album

In the future we will add support for the following APIs:

• Google Drive

The command-line application provides the following capabilities:

• OAuth 2.0

• Generate an OAuth 2.0 URL
• Exchange an OAuth 2.0 code for tokens
• Refresh OAuth 2.0 tokens

• Bookmarks _ List bookmarks
• Books

• List bookshelves
• List books

• Contacts

• Download Google Contacts
• Decrypt GnuPG/PGP content in the Notes fields

• Picasa

• List albums
• List photos

• Storage

• List objects in a Google Storage bucket
• Get an object from a Google Storage bucket
• Put an object into a Google Storage bucket
• Delete an object from a Google Storage bucket
• Get object metadata from a Google Storage bucket
• Synchronize a directory with a Google Storage bucket