[*Ruby*] RubyでGoogle Drive APIを使ってファイル一覧取得＆ファイルアップロード ref: http://qiita.com/cigalecigales/items/470e81c78cf3ef350b0c

file0.txt

[クライアントID]
127036428910-2cihomq21p413jtu4ebmf4kvefi8v9p1.apps.googleusercontent.com

[クライアントシークレット]
2KR6kOI2hOs0QSKqqltrkyfi

[リダイレクトURI]
http://localhost

file1.txt

https://accounts.google.com/o/oauth2/auth
?client_id=クライアントID
&redirect_uri=リダイレクトURI
&scope=https://www.googleapis.com/auth/drive
&response_type=code

file10.txt

curl -d client_id=127036428910-2cihomq21p413jtu4ebmf4kvefi8v9p1.apps.googleusercontent.com -d client_secret=2KR6kOI2hOs0QSKqqltrkyfi -d refresh_token=1/djoROZFMLKPHygvCqtREUAnF7ddeG-3mtXagaXwXAUg -d grant_type=refresh_token https://accounts.google.com/o/oauth2/token

file11.txt

{
  "access_token" : "ya29.DwHCrzGUsuzSUnFUKCHUugHXh3lTbYuBkn0fHk4lA33zxdGiFxT8palk5rvmR4PYlGqhlfFsRWzTBA",
  "token_type" : "Bearer",
  "expires_in" : 3600
}

file12.txt

$ gem install google_drive

file14.txt

$ ruby google-api-get-list.rb
IMG_0456.JPG
IMG_0454.JPG
IMG_0455.JPG
IMG_0451.JPG
(省略)

file2.txt

https://accounts.google.com/o/oauth2/auth
?client_id=127036428910-2cihomq21p413jtu4ebmf4kvefi8v9p1.apps.googleusercontent.com
&redirect_uri=http://localhost
&scope=https://www.googleapis.com/auth/drive
&response_type=code

file3.txt

http://localhost/?code=4/oIZC2ivBC4zV5subNiN6bou8uowe0Ix9L9TB5jDKUKs.IgN5uoclywkaBrG_bnfDxpI4cUOelgI

file4.txt

curl -d client_id=[クライアントID] -d client_secret=[クライアントシークレット] -d redirect_uri=[リダイレクトURI] -d grant_type=authorization_code -d code=[Authorization Code] https://accounts.google.com/o/oauth2/token

file5.txt

curl -d client_id=127036428910-2cihomq21p413jtu4ebmf4kvefi8v9p1.apps.googleusercontent.com -d client_secret=2KR6kOI2hOs0QSKqqltrkyfi -d redirect_uri=http://localhost -d grant_type=authorization_code -d code=4/oIZC2ivBC4zV5subNiN6bou8uowe0Ix9L9TB5jDKUKs.IgN5uoclywkaBrG_bnfDxpI4cUOelgI https://accounts.google.com/o/oauth2/token

file6.txt

{
  "access_token" : "ya29.DwGisAjZTMSJH6biEjydYXIp6JaXRmYnh21CrW09XpSZzbyRtlg9xmONE1TD7tDDawQgpTjHgZD0kA",
  "token_type" : "Bearer",
  "expires_in" : 3600,
  "refresh_token" : "1/djoROZFMLKPHygvCqtREUAnF7ddeG-3mtXagaXwXAUg"
}

file7.txt

{
  "error" : "invalid_grant"
}

file8.txt

{
  "error" : "invalid_grant",
  "error_description" : "Code was already redeemed."
}

file9.txt

curl -d client_id=[クライアントID] -d client_secret=[クライアントシークレット] -d refresh_token=[リフレッシュトークン] -d grant_type=refresh_token https://accounts.google.com/o/oauth2/token

google-api-get-list.rb

file_name = "Test" + Time.now.strftime('%Y-%m-%d_%H:%M:%S') + ".txt"
file = File.open(file_name, 'w')
file.puts("Test Upload!!")
file.close

session.upload_from_file(file_name, file_name, :convert => false)