MailChimp Integration using Gibbon

Gemfile

# This is done on Rails 3.2.2
# Make sure to define your signup route in routes.rb as a POST

# Mailchimp
gem 'gibbon'
gem 'thin'

index.html.erb

<!-- > under the views/welcome folder <-->

<%= form_tag signup_path, :class=> "form", remote: true do %>
     <%= text_field_tag :email, nil, :class => 'email', :type=>"email", :placeholder => 'Sign up for beta testing' %>
     <%= image_submit_tag "signupBtn.png", :alt => "Go", class: "input-btn"%>
<% end %>

signup.js.erb

//Under the views/welcome folder
<% if @js_email_error %>
	$("#email").val("<%= @js_email_error %>");
<% end %>

<% if @js_email_success %>
	$("#email").val("<%= @js_email_success %>");
	$(".input-btn").attr("src", "/assets/checkbtn.png");
<% end %>

welcome_controller.rb

class WelcomeController < ApplicationController
  def index
  end
  
  def signup
    mailchimp_api_key = "xxx"
    mailchimp_list_id = "xxx"
    g = Gibbon.new(mailchimp_api_key)
    
    response = g.listSubscribe({:id => mailchimp_list_id, 
  	          :email_address => params[:email], 
  	          :double_optin => false,
  	          :send_welcome => true})
  	if(response.is_a?(Hash))
  		puts response
  		
  		case response['code']
		    when 502  
		      @js_email_error = "Invalid Address!"
		    when 214
		      @js_email_error = "Already signed up!"
		  else
		    @js_email_error = response['error']
	    end
	    
  		@js_email_success = nil
  	else
  	  @js_email_success = "Your email has been added!"
  	  @js_email_error = nil
  	end
  end
end

This is using Ruby on Rails v 3.2.2 with the Gibbon and Thin Gem. Should be straightforward, you can definitely get fancier!

Hi! Thanks for posting this, but it seems not to work a 100%. It does the post to the API but the Javascript part wont work. In this code it would say "no view found" for signup. Is the thin gem required or would webbrick work as well? Thanks,