add developer newsletters form

app/controllers/newsletters_controller.rb

@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+
+class NewslettersController < ApplicationController
+  def show; end
+
+  def update
+    Faraday.post(Docuseal::NEWSLETTER_URL, newsletter_params.to_json, 'Content-Type' => 'application/json')
+  rescue StandardError => e
+    Rails.logger.error(e)
+  ensure
+    redirect_to root_path
+  end
+
+  private
+
+  def newsletter_params
+    params.require(:user).permit(:email)
+  end
+end

app/controllers/setup_controller.rb

@@ -30,7 +30,7 @@ class SetupController < ApplicationController
 
       sign_in(@user)
 
-      redirect_to root_path
+      redirect_to newsletter_path
     else
       render :index, status: :unprocessable_entity
     end

app/views/newsletters/show.html.erb

@@ -0,0 +1,14 @@
+<div class="max-w-xl mx-auto px-2">
+  <h1 class="text-4xl font-bold text-center my-8">👨‍💻 Developer Newsletters</h1>
+  <%= form_for current_user, url: newsletter_path do |f| %>
+    <div class="form-control">
+      <%= f.email_field :email, placeholder: 'Email', required: true, class: 'base-input' %>
+    </div>
+    <div class="form-control mt-4">
+      <%= f.button button_title, class: 'base-button' %>
+    </div>
+    <div class="text-center mt-2">
+      <a href="/" class="link">Skip</a>
+    </div>
+  <% end %>
+</div>