The Google API Ruby Client makes it trivial to discover and access supported
APIs.
+## Alpha
+
+This library is in Alpha. We will make an effort to support the library, but we reserve the right to make incompatible changes when necessary.
+
## Install
-Be sure `http://rubygems.org/` is in your gem sources.
+Be sure `https://rubygems.org/` is in your gem sources.
For normal client usage, this is sufficient:
## Example Usage
```ruby
-# Initialize the client & Google+ API
require 'google/api_client'
-client = Google::APIClient.new
-plus = client.discovered_api('plus')
+require 'google/api_client/client_secrets'
+require 'google/api_client/auth/installed_app'
-# Initialize OAuth 2.0 client
-client.authorization.client_id = '<CLIENT_ID_FROM_API_CONSOLE>'
-client.authorization.client_secret = '<CLIENT_SECRET>'
-client.authorization.redirect_uri = '<YOUR_REDIRECT_URI>'
+# Initialize the client.
+client = Google::APIClient.new(
+ :application_name => 'Example Ruby application',
+ :application_version => '1.0.0'
+)
-client.authorization.scope = 'https://www.googleapis.com/auth/plus.me'
+# Initialize Google+ API. Note this will make a request to the
+# discovery service every time, so be sure to use serialization
+# in your production code. Check the samples for more details.
+plus = client.discovered_api('plus')
-# Request authorization
-redirect_uri = client.authorization.authorization_uri
+# Load client secrets from your client_secrets.json.
+client_secrets = Google::APIClient::ClientSecrets.load
-# Wait for authorization code then exchange for token
-client.authorization.code = '....'
-client.authorization.fetch_access_token!
+# Run installed application flow. Check the samples for a more
+# complete example that saves the credentials between runs.
+flow = Google::APIClient::InstalledAppFlow.new(
+ :client_id => client_secrets.client_id,
+ :client_secret => client_secrets.client_secret,
+ :scope => ['https://www.googleapis.com/auth/plus.me']
+)
+client.authorization = flow.authorize
-# Make an API call
+# Make an API call.
result = client.execute(
:api_method => plus.activities.list,
:parameters => {'collection' => 'public', 'userId' => 'me'}
Locally cached discovery documents may be used as well. To load an API from a local file:
```ruby
+# Output discovery document to JSON
+File.open('my-api.json', 'w') do |f| f.puts MultiJson.dump(client.discovery_document('myapi', 'v1')) end
+
+# Read discovery document and load API
doc = File.read('my-api.json')
-my_api = client.register_discovery_document('myapi', 'v1', doc)
+client.register_discovery_document('myapi', 'v1', doc)
+my_api = client.discovered_api('myapi', 'v1')
```
### Authorization
For server-to-server interactions, like those between a web application and Google Cloud Storage, Prediction, or BigQuery APIs, use service accounts.
+As of version 0.8.3, service accounts can be configured using
+[Application Default Credentials][1], which rely on the credentials being
+available in a well-known location. If the credentials are not present
+and it's being used on a Compute Engine VM, it will use the VM's default credentials.
+
+```ruby
+client.authorization = :google_app_default # in a later version, this will become the default
+client.authorization.fetch_access_token!
+client.execute(...)
+```
+
+This is simpler API to use than in previous versions, although that is still available:
+
```ruby
key = Google::APIClient::KeyUtils.load_from_pkcs12('client.p12', 'notasecret')
client.authorization = Signet::OAuth2::Client.new(
client.execute(...)
```
+Service accounts are also used for delegation in Google Apps domains. The target user for impersonation is specified by setting the `:person` parameter to the user's email address
+in the credentials. Detailed instructions on how to enable delegation for your domain can be found at [developers.google.com](https://developers.google.com/drive/delegation).
+
+### Automatic Retries & Backoff
+
+The API client can automatically retry requests for recoverable errors. To enable retries, set the `client.retries` property to
+the number of additional attempts. To avoid flooding servers, retries invovle a 1 second delay that increases on each subsequent retry.
+In the case of authentication token expiry, the API client will attempt to refresh the token and retry the failed operation - this
+is a specific exception to the retry rules.
+
+The default value for retries is 0, but will be enabled by default in future releases.
+
### Batching Requests
Some Google APIs support batching requests into a single HTTP request. Use `Google::APIClient::BatchRequest`
```ruby
client = Google::APIClient.new
-urlshortener = client.discovered_api('urlshortner')
+urlshortener = client.discovered_api('urlshortener')
batch = Google::APIClient::BatchRequest.new do |result|
puts result.data
end
```
-## Command Line
-
-Included with the gem is a command line interface for working with Google APIs.
-
-```bash
-# Log in
-google-api oauth-2-login --client-id='...' --client-secret='...' --scope="https://www.googleapis.com/auth/plus.me"
-
-# List the signed-in user's activities
-google-api execute plus.activities.list --api=plus -- userId="me" collection="public"
-
-# Start an interactive API session
-google-api irb
->> plus = $client.discovered_api('plus')
->> $client.execute(plus.activities.list, {'userId' => 'me', 'collection' => 'public'})
-=> # returns a response from the API
-```
-
-For more information, use `google-api --help`
-
## Samples
-See the full list of [samples on Google Code](http://code.google.com/p/google-api-ruby-client/source/browse?repo=samples).
+See the full list of [samples on Github](https://github.com/google/google-api-ruby-client-samples).
## Support
-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).
+Please [report bugs at the project on Github](https://github.com/google/google-api-ruby-client/issues). 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).
+
+[1]: https://developers.google.com/accounts/docs/application-default-credentials
projects / arvados.git / blobdiff