Michael de Silva's Blog

Software Engineer. Rubyist and Roboticist.

Michael de Silva's Blog

Software Engineer. Rubyist and Roboticist.

Just built a Ruby 2.2.1 compatible Mailchimp wrapper

Screen shot 2015 06 06 at 18.32.17

It's the weekend, so obviously it's time to roll up my sleeves and get some serious work done. Last night, I felt that it was time that I put some effort into building a newsletter group, at least starting via my blog.

I want this to be reusable too — and having looked at the most popular Mailchimp library's latest efforts in upgrading to Mailchimp's API v3.0, I just said 'screw it' — I'm going to build it from scratch.

My favourite libcurl Ruby wrapper is Curb, so this is used within my API's base. This simple DSL isn't ready for public prime time consumption, but it'll give you a rough idea of the approach I've taken

module Mailchimp
  class Member < Api::Base

    def initialize(list)
      super()

      # FIXME: Check that `list` is an instance of `Mailchimp::List`
      @list_id = list.id
      @resource_url = "/lists/#{@list_id}/members"
    end

    attr_reader :resource_url
    attr_accessor :id, :email_address, :email_type, :status, :last_changed

    # Fetches this member's `List`
    #
    # @example DSL example
    #   list = Mailchimp::List.new.fetch('LIST_ID_GOES_HERE')
    #   member = Mailchimp::Member.new(list)
    #   member.list
    # @return [List] the list object
    def list
      List.new.fetch(@list_id)
    end

    def all
      l = []
      status, response = get_json(resource_url)

      if response && status && status == :success && response["members"].any?
        response["members"].each do |member|
          l << decorate_with(member)
        end
      elsif status != :success
        Rails.logger.tagged('Mailchimp::Member#all') { Rails.logger.debug "ERROR: #{response}" }
        return false
      end

      l
    end

    # @example DSL example
    #   member = Mailchimp::Member.new Mailchimp::List.new.fetch('LIST_ID_GOES_HERE')
    #   member.email_address = "foo@bar.com"
    #   member.create
    def create
      member = {
        status: "subscribed",
        email_address: self.email_address
      }
      status, response = post_json(resource_url, member.to_json)

      if response && status && status == :success
        return decorate_with(response)
      elsif status != :success
        Rails.logger.tagged('Mailchimp::Member#create') { Rails.logger.debug "ERROR: #{response}" }
        false
      end
    end

    def delete(id)
      delete_json("#{resource_url}/#{id}/") if id.present?
    end

  end
end

Let me know your thoughts in the comments, I'm off to wire this up now...

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