gem install signnow

require "signnow"

Signnow.configure do |config|
  config[:app_id] = "_your_application_app_id_",
  config[:app_secret] = "_your_application_app_secret_"
end

Signnow.configure do |config|
  config[:use_test_env?] = true
end

# Redirect the user to the authorize url
redirect_to Signnow::Authentications::Oauth.authorize_url(redirect_uri: your_redirect_url)

oauth_credentials = Signnow::Authentications::Oauth.authenticate(code: code)

=>
{
  access_token: '_user_access_token_',
  refresh_token: '_user_refresh_token',
  token_type: 'bearer',
  scope: '*',
  last_login: 2013929273,
  expires_in: 2013929273
}

Signnow::User.show(access_token: oauth_credentials.access_token)

user = Singnow::User.create(
  email: 'yournewuser@email.com', # required
  password: 'new_password', # required
  first_name: 'john', # optional
  last_name: 'doe', # optional
)

token = user.access_token

client = Signnow::Client.new(token)

client.perform! |token|
  Singnow::User.show(access_token: token)
end

client.perform! |token|
  Singnow::Document.all(access_token: token)
end

client.perform! |token|
  Singnow::Document.show(id: 'document_id', access_token: token)
end

link =
  client.perform! |token|
    Singnow::Document.download_link(id: 'document_id', access_token: token)
  end