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Twitter OAuth2 Client Library in Ruby.


Add this line to your application's Gemfile:

gem 'twitter_oauth2'

And then execute:

$ bundle install

Or install it yourself as:

$ gem install twitter_oauth2


This gem is built on rack/oauth2 gem.
Basically, the usage is same with the underling gem.

The only difference is that this gem is supporting PKCE as default, since Twitter requires it.

require 'twitter_oauth2'

client =
  identifier:   '<YOUR-CLIENT-ID>',
  secret:       '<YOUR-CLIENT-SECRET>',
  redirect_uri: '<YOUR-CALLBACK-URL>'

authorization_uri = client.authorization_uri(
  scope: [

#  When `TwitterOAuth2::Client#authorization_uri` is called,
#  PKCE `code_verifier` and `state` are automatically generated.
#  You can get it here.

code_verifier = client.code_verifier
state = client.state

puts authorization_uri
`open "#{authorization_uri}"`

print 'code: ' and STDOUT.flush
code = gets.chop

# NOTE: Obtaining Access Token & Refresh Token using Authorization Code
client.authorization_code = code
token_response = client.access_token! code_verifier

# NOTE: Refreshing Access Token using Refresh Token
client.refresh_token = token_response.refresh_token

If you want to get App-only Bearer Token (via grant_type=client_credentials), you need some tweaks as below.

require 'twitter_oauth2'

client =
  # NOTE: not OAuth 2.0 Client ID, but OAuth 1.0 Consumer Key (a.k.a API Key)
  identifier:     '<YOUR-CONSUMER-KEY>',
  # NOTE: not OAuth 2.0 Client Secret, but OAuth 1.0 Consumer Secret (a.k.a API Key Secret)
  secret:         '<YOUR-CONSUMER-SECRET>'
  # NOTE: Twitter has Client Credentials Grant specific token endpoint.
  token_endpoint: '/oauth2/token',


For more usage, read the underling gem's wiki.


After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and the created tag, and push the .gem file to


Bug reports and pull requests are welcome on GitHub at[USERNAME]/twitter_oauth2. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the code of conduct.


The gem is available as open source under the terms of the MIT License.

Code of Conduct

Everyone interacting in the TwitterOAuth2 project's codebases, issue trackers, chat rooms and mailing lists is expected to follow the code of conduct.


Twitter OAuth 2.0 Client Library in Ruby



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