gistfile1.txt

option :client_options, {
  :site => 'https://manage.stripe.com',
  :authorize_url => '/oauth/authorize',
  :token_url => '/oauth/token',
}

option :token_params, {
  :parse => :query
}

option :access_token_options, {
  :header_format => "OAuth %s",
  :param_name => 'access_token'
}

option :authorize_params, {
  :header_format => "Bearer %s(:client_secret)"
}
  

      def request_phase
        authorize_params[:headers] = {:authorize => "Bearer #{client.secret}"}
        redirect client.auth_code.authorize_url({:redirect_uri => callback_url}.merge(authorize_params))
      end

stripeplatform) Callback phase initiated.
(stripeplatform) Authentication failure! invalid_credentials: OAuth2::Error, :
{
"error": "invalid_client",
"error_description": "No authentication credentials were provided. Send your secret API key in the Authorization header using the Bearer authentication method"
}