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Synchronizes Solidus data with Mailchimp E-Commerce API. (Mailchimp API 3.0)

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SolidusMailchimpSync

WIP

Synchronizes Solidus data with Mailchimp E-Commerce API. (Mailchimp API 3.0)

This plugin does not do every kind of integration with Mailchimp that might be possible, it just focuses on synchronizing data from Solidus to Mailchimp, by adding ActiveRecord lifecycle hooks to Solidus models.

  • Solidus User to Mailchimp Customer. (All customers currently added as status transactional in Mailchimp)
  • Solidus Product, Variant (and images) to Mailchimp Product and Variant.
  • Solidus Order (and their LineItems), to Mailchimp Cart and Order (and their Lines).

Not all possible attributes that can be sync'd may yet be synced. It does not yet sync Order payment/cancel/return/shipment state. It does not yet sync Customer orders_count/total_spent. Some Mailchimp E-Commerce features may require these, others are still usable.

Right now this plugin will connect everything in Solidus to a single Mailchimp Store, it does not support multiple Mailchimp Stores.

We do not (yet?) support Mailchimp E-Commerce Link Tracking.

Actual sync'ing is done in background jobs using ActiveJob, configure your ActiveJob adapter. All jobs are idempotent.

Installation

Add solidus_mailchimp_sync to your Gemfile:

gem 'solidus_mailchimp_sync'

Bundle your dependencies and run the installation generator:

bundle
bundle exec rails g solidus_mailchimp_sync:install

Your app will need to set default_url_options[:host] so urls can be sent to mailchimp in background. :

 config.action_mailer.default_url_options = { host: 'mystore.example.org' }

Review the generated ./config/initializers/solidus_mailchimp_sync.rb for required and optional config, including mailchimp api keys.

You will need to have a Mailchimp List already created. You will need to create a Mailchimp Store object belonging to that list, that we'll use for synchronization. Not sure if that can be created through anything but API. You can create one by:

bundle exec rake solidus_mailchimp_sync:create_mailchimp_store LIST_ID=list-id-from-mailchimp

Then add the storeID for created store to your configuration.

Before going live, you will probably want to bulk-add all your existing data -- if existing products aren't added, orders won't be able to be synced. This could take a while:

RAILS_ENV=production rake solidus_mailchimp_sync:bulk_sync

Lower-level tools

This gem only synchronizes data with the Mailchimp E-Commerce API, but you may find it's methods useful for writing your own code to interact with the Mailchimp API. SolidusMailchimpSync::Mailchimp.request can be used to make API requests using the configured API key, and raising SolidusMailchimp::Error objects on failures. And SolidusMailchimpSync::Util.subscriber_hash can create the ID/key/hash object for a Mailchimp Member object.

This gem doesn't have any built-in automatic opt-in checkbox, but here is a call that could be used to subscribe a user to a Mailchimp list:

 SolidusMailchimpSync::Mailchimp.request(
      :put,
      "/lists/#{ENV['MAILCHIMP_LIST_ID']}/members/#{SolidusMailchimpSync::Util.subscriber_hash(user.email)}",
      body: {
        status: "pending"
        email_address: user.email
      })

Known issues/To do

  • If a user changes their email addresses, their old orders may be no longer associated with them in mailchimp, they will wind up with two mailchimp customer records. (Mailchimp docs suggest you can change an existing Customer's id itself, but it didn't seem to work. can't change an existing Customer's email address)

  • Mailchimp API does not let us update products. This is problematic if for instance available_on changes, or other metadata like image/description/title etc. We haven't found a good workaround, trying to delete and recreate product in Mailchimp is also problematic. We do try to avoid sync'ing product until it's available, with this logic being customizable.

  • Debounce: This may send a LOT of updates to mailchimp, when you're editing something. In checkout process there are sometimes multiple syncs for order, not sure why. Have an idea for an implementation debounce feature that could debounce/coalesce mailchimp syncs in the general case.

Maintenance Expectations

We've develoepd this for our own clients needs. We are sharing it with the intention of sharing/collaborating with other developers, so they don't have to re-invent the wheel.

We think this is solid and reliable code, but our future ability to attend to any maintenance or development will depend on our time and clients needs. We will do our best to respond to PR'.

Testing

First bundle your dependencies, then run rake. rake will default to building the dummy app if it does not exist, then it will run specs, and Rubocop static code analysis. The dummy app can be regenerated by using rake test_app.

bundle
bundle exec rake

Some tests use VCR to record live transactions with mailchimp. To run these tests while recording new cassettes, you will need to set ENV MAILCHIMP_API_KEY and MAILCHIMP_STORE_ID. Note these should be a test/dummy mailchimp account, as data will be edited by tests.

When testing your applications integration with this extension you may use it's factories. (No factories at present) Simply add this require statement to your spec_helper:

require 'solidus_mailchimp_sync/factories'

Copyright (c) 2016 Friends of the Web LLC, released under the New BSD License

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Synchronizes Solidus data with Mailchimp E-Commerce API. (Mailchimp API 3.0)

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