cloudflare_turnstile

Add Cloudflare Turnstile to your Rails app in seconds.

Installation

Add this line to your Gemfile and then execute bundle install:

gem "cloudflare_turnstile"

Usage

Add the view helper to your form - just before the submit button is usually a good spot.

<%= form_for(@user) do |f| %>
  ..
  <%= cloudflare_turnstile %>
  <%= f.submit "Log In" %>
<% end %>

Then enable it for the controller actions you wish. It works just like a before_action. Pass only: with the action names.

class UsersController < ApplicationController
  cloudflare_turnstile only: [:create, :login_submit]

  def new
    # new user view
  end

  def create
    # Turnstile verification will automatically take place prior to here.

    @user = User.create!(params)
    ..
  end

  def login
    # login form view
  end

  def login_submit
    # Turnstile verification will automatically take place prior to here.

    ..
  end
end

By default, it responds with no content (only headers: head(200)). This way the spam bot thinks they have been successful and will spend less time making requests to your website.

Credits

Inspiration invisible_captcha