4 <dt>Homepage</dt><dd><a href="http://code.google.com/p/google-api-ruby-client">http://code.google.com/p/google-api-ruby-client</a></dd>
5 <dt>Authors</dt><dd>Bob Aman, <a href="mailto:sbazyl@google.com">Steven Bazyl</a></dd>
6 <dt>Copyright</dt><dd>Copyright © 2011 Google, Inc.</dd>
7 <dt>License</dt><dd>Apache 2.0</dd>
10 [![Build Status](https://secure.travis-ci.org/google/google-api-ruby-client.png)](http://travis-ci.org/google/google-api-ruby-client)
11 [![Dependency Status](https://gemnasium.com/google/google-api-ruby-client.png)](https://gemnasium.com/google/google-api-ruby-client)
15 The Google API Ruby Client makes it trivial to discover and access supported
20 Be sure `http://rubygems.org/` is in your gem sources.
22 For normal client usage, this is sufficient:
24 $ sudo gem install google-api-client
28 # Initialize the client & Google+ API
29 require 'google/api_client'
30 client = Google::APIClient.new
31 plus = client.discovered_api('plus')
33 # Initialize OAuth 2.0 client
34 client.authorization.client_id = '<CLIENT_ID_FROM_API_CONSOLE>'
35 client.authorization.client_secret = '<CLIENT_SECRET>'
36 client.authorization.redirect_uri = '<YOUR_REDIRECT_URI>'
38 client.authorization.scope = 'https://www.googleapis.com/auth/plus.me'
40 # Request authorization
41 redirect_uri = client.authorization.authorization_uri
43 # Wait for authorization code then exchange for token
44 client.authorization.code = '....'
45 client.authorization.fetch_access_token!
48 result = client.execute(
49 :api_method => plus.activities.list,
50 :parameters => {'collection' => 'public', 'userId' => 'me'}
59 To take full advantage of the client, load API definitions prior to use. To load an API:
61 urlshortener = client.discovered_api('urlshortener')
63 Specific versions of the API can be loaded as well:
65 drive = client.discovered_api('drive', 'v2')
67 Locally cached discovery documents may be used as well. To load an API from a local file:
69 doc = File.read('my-api.json')
70 my_api = client.register_discovery_document('myapi', 'v1', doc)
74 Most interactions with Google APIs require users to authorize applications via OAuth 2.0. The client library uses [Signet](https://github.com/google/signet) to handle most aspects of authorization. For additional details about Google's OAuth support, see [Google Developers](https://developers.google.com/accounts/docs/OAuth2).
76 Credentials can be managed at the connection level, as shown, or supplied on a per-request basis when calling `execute`.
78 For server-to-server interactions, like those between a web application and Google Cloud Storage, Prediction, or BigQuery APIs, use service accounts.
80 key = Google::APIClient::KeyUtils.load_from_pkcs12('client.p12', 'notasecret')
81 client.authorization = Signet::OAuth2::Client.new(
82 :token_credential_uri => 'https://accounts.google.com/o/oauth2/token',
83 :audience => 'https://accounts.google.com/o/oauth2/token',
84 :scope => 'https://www.googleapis.com/auth/prediction',
85 :issuer => '123456-abcdef@developer.gserviceaccount.com',
87 client.authorization.fetch_access_token!
93 Some Google APIs support batching requests into a single HTTP request. Use `Google::APIClient::BatchRequest`
94 to bundle multiple requests together.
98 client = Google::APIClient.new
99 urlshortener = client.discovered_api('urlshortner')
101 batch = Google::APIClient::BatchRequest.new do |result|
105 batch.add(:api_method => urlshortener.url.insert,
106 :body_object => { 'longUrl' => 'http://example.com/foo' })
107 batch.add(:api_method => urlshortener.url.insert,
108 :body_object => { 'longUrl' => 'http://example.com/bar' })
109 client.execute(batch)
111 Blocks for handling responses can be specified either at the batch level or when adding an individual API call. For example:
113 batch.add(:api_method=>urlshortener.url.insert, :body_object => { 'longUrl' => 'http://example.com/bar' }) do |result|
119 For APIs that support file uploads, use `Google::APIClient::UploadIO` to load the stream. Both multipart and resumable
120 uploads can be used. For example, to upload a file to Google Drive using multipart
122 drive = client.discovered_api('drive', 'v2')
124 media = Google::APIClient::UploadIO.new('mymovie.m4v', 'video/mp4')
126 'title' => 'My movie',
127 'description' => 'The best home movie ever made'
129 client.execute(:api_method => drive.files.insert,
130 :parameters => { 'uploadType' => 'multipart' },
131 :body_object => metadata,
134 To use resumable uploads, change the `uploadType` parameter to `resumable`. To check the status of the upload
135 and continue if necessary, check `result.resumable_upload`.
137 client.execute(:api_method => drive.files.insert,
138 :parameters => { 'uploadType' => 'resumable' },
139 :body_object => metadata,
141 upload = result.resumable_upload
145 client.execute(upload)
150 Included with the gem is a command line interface for working with Google APIs.
153 google-api oauth-2-login --client-id='...' --client-secret='...' --scope="https://www.googleapis.com/auth/plus.me"
155 # List the signed-in user's activities
156 google-api execute plus.activities.list --api=plus -- userId="me" collection="public"
158 # Start an interactive API session
160 >> plus = $client.discovered_api('plus')
161 >> $client.execute(plus.activities.list, {'userId' => 'me', 'collection' => 'public'})
162 => # returns a response from the API
164 For more information, use `google-api --help`
168 See the full list of [samples on Google Code](http://code.google.com/p/google-api-ruby-client/source/browse?repo=samples).
173 Please [report bugs at the project on Google Code](http://code.google.com/p/google-api-ruby-client/issues/entry). Don't hesitate to [ask questions](http://stackoverflow.com/questions/tagged/google-api-ruby-client) about the client or APIs on [StackOverflow](http://stackoverflow.com).