Fetch data from URL provided by Litefarm

So we don't have to distinguish between staging and production. They
will provide the right URL.

engines/dfc_provider/app/controllers/dfc_provider/events_controller.rb

@@ -33,7 +33,7 @@ module DfcProvider
         return
       end
 
-      DfcImporter.new.import_enterprise_profiles(current_user.id)
+      DfcImporter.new.import_enterprise_profiles(current_user.id, enterprises_url)
 
       render json: { success: true }
     end

engines/dfc_provider/app/services/dfc_importer.rb

@@ -2,12 +2,11 @@
 
 # Fetch data from another platform and store it locally.
 class DfcImporter
-  def import_enterprise_profiles(platform)
+  def import_enterprise_profiles(platform, enterprises_url)
     raise "unsupported platform" if platform != "lf-dev"
 
-    endpoint = "https://api.beta.litefarm.org/dfc/enterprises/"
     api = DfcPlatformRequest.new(platform)
-    body = api.call(endpoint)
+    body = api.call(enterprises_url)
     graph = DfcIo.import(body).to_a
     farms = graph.select { |item| item.semanticType == "dfc-b:Enterprise" }
     farms.each { |farm| import_profile(farm) }

engines/dfc_provider/spec/services/dfc_importer_spec.rb

@@ -8,9 +8,11 @@ require_relative "../spec_helper"
 #     OPENID_APP_ID="..."
 #     OPENID_APP_SECRET="..."
 RSpec.describe DfcImporter do
+  let(:endpoint) { "https://api.beta.litefarm.org/dfc/enterprises/" }
+
   it "fetches a list of enterprises", :vcr do
     expect {
-      subject.import_enterprise_profiles("lf-dev")
+      subject.import_enterprise_profiles("lf-dev", endpoint)
     }.to have_enqueued_mail(Spree::UserMailer, :confirmation_instructions)
       .and have_enqueued_mail(EnterpriseMailer, :welcome).twice
 
@@ -24,7 +26,7 @@ RSpec.describe DfcImporter do
 
     # Repeating works without creating duplicates:
     expect {
-      subject.import_enterprise_profiles("lf-dev")
+      subject.import_enterprise_profiles("lf-dev", endpoint)
     }.not_to have_enqueued_mail
   end
 end