Created controller and route to answer GraphQL queries

app/controllers/graphql_controller.rb

@@ -0,0 +1,11 @@
+class GraphqlController < ApplicationController
+
+  def query
+    #puts "I'm the GraphqlController inside the #query action!!"
+
+    render json: ConsulSchema.execute(
+      params[:query],
+      variables: params[:variables] || {}
+    )
+  end
+end