Add support for FASP data sharing (#34415)

config/routes/fasp.rb

@@ -10,6 +10,16 @@ namespace :api, format: false do
       end
     end
 
+    namespace :data_sharing do
+      namespace :v0 do
+        resources :backfill_requests, only: [:create] do
+          resource :continuation, only: [:create]
+        end
+
+        resources :event_subscriptions, only: [:create, :destroy]
+      end
+    end
+
     resource :registration, only: [:create]
   end
 end