This class can be used to build emails from Sendgrid's inbound parse functionality. I built this as a light-weight alternative to griddler. Please note this class is meant to provide a starting point and hasn't been thoroughly tested. To use the class place it in your app/lib folder and call it in your controller action.
def my_action
email = Tmd::Email.new.parse(params)
end
If you're using a gem like Carrierwave for file uploads, you can reference email.attachments to upload attachments to external storage. Please note this code will not work if you select "raw formatting" in Sendgrid's admin console for your endpoint.