Webhookr::Mailchimp

This gem is a plugin for Webhookr that enables your application to accept webhooks from Mailchimp.

Installation

Add this line to your application's Gemfile:

gem 'webhookr-mailchimp'

Or install it yourself:

$ gem install webhookr-mailchimp

Usage

Once you have the gem installed run the generator to add the code to your initializer. An initializer will be created if you do not have one.

rails g webhookr:mailchimp:init *initializer_name* -s

Run the generator to create an example file to handle MailChimp webhooks.

rails g webhookr:mailchimp:example_hooks

Or create a MailChimp handler class for any event that you want to handle. For example to handle unsubscribes you would create a class as follows:

class MailChimpHooks
  def on_unsubscribe(incoming)
    # Your custom logic goes here.
    User.unsubscribe_newletter(incoming.payload.data.email)
  end
end

For a complete list of events, and the payload format, see below.

Edit config/initializers/initializer_name and change the commented line to point to your custom Mailchimp event handling class. If your class was called MailChimpHooks the configuration line would look like this:

  Webhookr::Mailchimp::Adapter.config.callback = MailChimpHooks

To see the list of MailChimp URLs for your application can use when you configure MailChimp webhooks, run the provided webhookr rake task:

rake webhookr:services

Example output:

mailchimp:
  GET	/webhookr/events/mailchimp/19xl64emxvn
  POST	/webhookr/events/mailchimp/19xl64emxvn

MailChimp Events & Payload

Events

All webhook events are supported. For further information on these events, see the MailChimp documentation.

MailChimp Event	Event Handler
subscribe	on_subscribe(incoming)
unsubscribe	on_unsubscribe(incoming)
profile	on_profile(incoming)
upemail	on_upemail(incoming)
cleaned	on_cleaned(incoming)
campaign	on_campaign(incoming)

Payload

The payload is the full payload data from as per the MailChimp documentation, converted to an OpenStruct for ease of access. Examples for the method call unsubscribe:

  incoming.payload.fired_at
  incoming.payload.data.action
  incoming.payload.data.reason
  incoming.payload.data.id
  incoming.payload.data.list_id
  incoming.payload.data.email
  incoming.payload.data.email_type
  incoming.payload.data.merges.EMAIL
  incoming.payload.data.merges.FNAME
  incoming.payload.data.merges.LNAME
  incoming.payload.data.merges.INTERESTS
  incoming.payload.data.ip_opt
  incoming.payload.data.campaign_id
  incoming.payload.data.reason

Supported Service - MailChimp

• [http://apidocs.mailchimp.com/webhooks/](MailChimp - v1.3)

Works with:

webhookr-mailchimp works with Rails 3.1, 3.2 and 4.0, and has been tested on the following Ruby implementations:

• 1.9.3
• 2.0.0
• jruby-19mode

Versioning

This library aims to adhere to Semantic Versioning 2.0.0. Violations of this scheme should be reported as bugs. Specifically, if a minor or patch version is released that breaks backward compatibility, that version should be immediately yanked and/or a new version should be immediately released that restores compatibility. Breaking changes to the public API will only be introduced with new major versions. As a result of this policy, once this gem reaches a 1.0 release, you can (and should) specify a dependency on this gem using the Pessimistic Version Constraint with two digits of precision. For example:

spec.add_dependency 'webhookr-mailchimp', '~> 1.0'

While this gem is currently a 0.x release, suggestion is to require the exact version that works for your code:

spec.add_dependency 'webhookr-mailchimp', '0.0.1'

License

webhookr-mailchimp is released under the MIT license.

Author

• Gerry Power