Installed authentication-zero

app/controllers/registrations_controller.rb

@@ -0,0 +1,30 @@
+class RegistrationsController < ApplicationController
+  skip_before_action :authenticate
+
+  def new
+    @user = User.new
+  end
+
+  def create
+    @user = User.new(user_params)
+
+    if @user.save
+      session_record = @user.sessions.create!
+      cookies.signed.permanent[:session_token] = { value: session_record.id, httponly: true }
+
+      send_email_verification
+      redirect_to root_path, notice: "Welcome! You have signed up successfully"
+    else
+      render :new, status: :unprocessable_entity
+    end
+  end
+
+  private
+    def user_params
+      params.permit(:email, :password, :password_confirmation)
+    end
+
+    def send_email_verification
+      UserMailer.with(user: @user).email_verification.deliver_later
+    end
+end