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A Ruby library to read/write files/spreadsheets in Google Drive/Docs.
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README.rdoc

This is a Ruby library to read/write files/spreadsheets in Google Drive/Docs.

NOTE: This is NOT a library to create Google Drive App.

Migration from ver. 0.x.x / 1.x.x to to ver. 2.x.x

There are some incompatible API changes. See MIGRATING.md.

How to install

$ sudo gem install google_drive

How to use

First, follow Step 1 and 2 of “Authorizing requests with OAuth 2.0” in this page to get a client ID and client secret for OAuth. Set “Application type” to “Other” in the form to create a client ID if you use GoogleDrive.saved_session method as in the example below.

Next, create a file config.json which contains the client ID and crient secret you got above, which looks like:

{
  "client_id": "xxxxxxxxxxxx-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.apps.googleusercontent.com",
  "client_secret": "xxxxxxxxxxxxxxxxxxxxxxxx"
}

Example to read/write files in Google Drive:

require "google_drive"

# Creates a session. This will prompt the credential via command line for the
# first time and save it to config.json file for later usages.
session = GoogleDrive.saved_session("config.json")

# Gets list of remote files.
session.files.each do |file|
  p file.title
end

# Uploads a local file.
session.upload_from_file("/path/to/hello.txt", "hello.txt", convert: false)

# Downloads to a local file.
file = session.file_by_title("hello.txt")
file.download_to_file("/path/to/hello.txt")

# Updates content of the remote file.
file.update_from_file("/path/to/hello.txt")

Example to read/write spreadsheets:

require "google_drive"

# Creates a session. This will prompt the credential via command line for the
# first time and save it to config.json file for later usages.
session = GoogleDrive.saved_session("config.json")

# First worksheet of
# https://docs.google.com/spreadsheet/ccc?key=pz7XtlQC-PYx-jrVMJErTcg
# Or https://docs.google.com/a/someone.com/spreadsheets/d/pz7XtlQC-PYx-jrVMJErTcg/edit?usp=drive_web
ws = session.spreadsheet_by_key("pz7XtlQC-PYx-jrVMJErTcg").worksheets[0]

# Gets content of A2 cell.
p ws[2, 1]  #==> "hoge"

# Changes content of cells.
# Changes are not sent to the server until you call ws.save().
ws[2, 1] = "foo"
ws[2, 2] = "bar"
ws.save

# Dumps all cells.
(1..ws.num_rows).each do |row|
  (1..ws.num_cols).each do |col|
    p ws[row, col]
  end
end

# Yet another way to do so.
p ws.rows  #==> [["fuga", ""], ["foo", "bar]]

# Reloads the worksheet to get changes by other clients.
ws.reload

API document: www.rubydoc.info/gems/google_drive

Source code

github.com/gimite/google-drive-ruby

The license of this source is “New BSD Licence”

Supported environments

Ruby 2.0.0 or later. Checked with Ruby 2.3.0.

Author

Hiroshi Ichikawa - gimite.net/en/index.php?Contact

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