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require 'rubygems'
require 'google/api_client'
require 'google/api_client/client_secrets'
require 'google/api_client/auth/file_storage'
require 'sinatra'
require 'logger'
enable :sessions
CREDENTIAL_STORE_FILE = "#{$0}-oauth2.json"
def logger; settings.logger end
def api_client; settings.api_client; end
def calendar_api; settings.calendar; end
def user_credentials
# Build a per-request oauth credential based on token stored in session
# which allows us to use a shared API client.
@authorization ||= (
auth = api_client.authorization.dup
auth.redirect_uri = to('/oauth2callback')
auth.update_token!(session)
auth
)
end
configure do
log_file = File.open('calendar.log', 'a+')
log_file.sync = true
logger = Logger.new(log_file)
logger.level = Logger::DEBUG
client = Google::APIClient.new(
:application_name => 'Ruby Calendar sample',
:application_version => '1.0.0')
file_storage = Google::APIClient::FileStorage.new(CREDENTIAL_STORE_FILE)
if file_storage.authorization.nil?
client_secrets = Google::APIClient::ClientSecrets.load
client.authorization = client_secrets.to_authorization
client.authorization.scope = 'https://www.googleapis.com/auth/calendar'
else
client.authorization = file_storage.authorization
end
# Since we're saving the API definition to the settings, we're only retrieving
# it once (on server start) and saving it between requests.
# If this is still an issue, you could serialize the object and load it on
# subsequent runs.
calendar = client.discovered_api('calendar', 'v3')
set :logger, logger
set :api_client, client
set :calendar, calendar
end
before do
# Ensure user has authorized the app
unless user_credentials.access_token || request.path_info =~ /\A\/oauth2/
redirect to('/oauth2authorize')
end
end
after do
# Serialize the access/refresh token to the session and credential store.
session[:access_token] = user_credentials.access_token
session[:refresh_token] = user_credentials.refresh_token
session[:expires_in] = user_credentials.expires_in
session[:issued_at] = user_credentials.issued_at
file_storage = Google::APIClient::FileStorage.new(CREDENTIAL_STORE_FILE)
file_storage.write_credentials(user_credentials)
end
get '/oauth2authorize' do
# Request authorization
redirect user_credentials.authorization_uri.to_s, 303
end
get '/oauth2callback' do
# Exchange token
user_credentials.code = params[:code] if params[:code]
user_credentials.fetch_access_token!
redirect to('/')
end
get '/' do
# Fetch list of events on the user's default calandar
# calendar_id = 'primary'
calendar_id = 'ktju3jonf98solrasjg5tqucbk@group.calendar.google.com'
result = api_client.execute(:api_method => calendar_api.events.list,
:parameters => {'calendarId' => calendar_id, 'timeMin' => DateTime.now, 'orderBy' => 'startTime', 'singleEvents' => 'True'},
:authorization => user_credentials)
[result.status, {'Content-Type' => 'application/json'}, result.data.to_json]
end

GEM
  remote: https://rubygems.org/
  specs:
    addressable (2.3.6)
    autoparse (0.3.3)
      addressable (>= 2.3.1)
      extlib (>= 0.9.15)
      multi_json (>= 1.0.0)
    extlib (0.9.16)
    faraday (0.9.0)
      multipart-post (>= 1.2, < 3)
    google-api-client (0.7.1)
      addressable (>= 2.3.2)
      autoparse (>= 0.3.3)
      extlib (>= 0.9.15)
      faraday (>= 0.9.0)
      jwt (>= 0.1.5)
      launchy (>= 2.1.1)
      multi_json (>= 1.0.0)
      retriable (>= 1.4)
      signet (>= 0.5.0)
      uuidtools (>= 2.1.0)
    jwt (1.0.0)
    launchy (2.4.2)
      addressable (~> 2.3)
    multi_json (1.10.1)
    multipart-post (2.0.0)
    rack (1.5.2)
    rack-protection (1.5.3)
      rack
    retriable (1.4.1)
    signet (0.5.1)
      addressable (>= 2.2.3)
      faraday (>= 0.9.0.rc5)
      jwt (>= 0.1.5)
      multi_json (>= 1.0.0)
    sinatra (1.4.5)
      rack (~> 1.4)
      rack-protection (~> 1.4)
      tilt (~> 1.3, >= 1.3.4)
    tilt (1.4.1)
    uuidtools (2.1.5)

PLATFORMS
  ruby

DEPENDENCIES
  google-api-client (= 0.7.1)
  jwt (= 1.0.0)
  sinatra (= 1.4.5)

# A sample Gemfile
source "https://rubygems.org"

# gem "rails"
gem "google-api-client", "0.7.1"
gem "jwt", "1.0.0"
gem "sinatra", "1.4.5"

### /Users/kwatanabe/.gitignore-boilerplates/ruby.gitignore

*.gem
*.rbc
.bundle
.config
coverage
InstalledFiles
lib/bundler/man
pkg
rdoc
spec/reports
test/tmp
test/version_tmp
tmp

# YARD artifacts
.yardoc
_yardoc
doc/

# bunlder
vendor/


### /Users/kwatanabe/.gitignore-boilerplates/Global/osx.gitignore

.DS_Store
.AppleDouble
.LSOverride
Icon


# Thumbnails
._*

# Files that might appear on external disk
.Spotlight-V100
.Trashes


### /Users/kwatanabe/.gitignore-boilerplates/Global/emacs.gitignore

*~
\#*\#
/.emacs.desktop
/.emacs.desktop.lock
.elc
auto-save-list
tramp
.\#*

# Org-mode
.org-id-locations
*_archive