How can I pass confirmation_token for devise with React and Rails

The application I'm working on is on React and Rails. I'm using devise and I wanted to add a button to resend the confirmation link.

I added it in my React js file as follows:

<a className="btn btn-secondary" onClick={this.resendConfirmation.bind(this)}>Resend Confirmation Link</a>

resendConfirmation() {
    API.get('users/confirmation', {}, function(res) {
        this.setState(res);
    }.bind(this));
}

But when I click on the button I get an error 400 Bad Request {confirmation_token: ["can't be blank"]}

Obviously it is because of the following code in my confirmations_controller.rb

def show
  resource_class.confirmation_token = User.confirmation_token
  self.resource = resource_class.confirm_by_token(params[:confirmation_token])
  if resource.errors.empty?
    # Automatically login user after confirmation.
    sign_in(resource)
    render :status => 200, :json => resource.to_json
  else
    render :status => 400, :json => {error: true, message: resource.errors.messages}
  end
end

Over here it doesn't find a confirmation_token and so it sends the 400 Bad Request.

Currently I'm storing the user's confirmation_token in the database, I wanted to know if there is any way I can sent it as a part of my request via react?