Put graphql behind a feature flag

app/graphql/types/base_object.rb

@@ -16,7 +16,7 @@ module Types
         end
       end
 
-      if administrateur
+      if administrateur && Flipper.enabled?(:administrateur_graphql, administrateur.user)
         context[:authorized][demarche.id] = true
         true
       end

config/initializers/flipper.rb

@@ -26,6 +26,7 @@ end
 # A list of features to be deployed on first push
 features = [
   :administrateur_champ_integer_number,
+  :administrateur_graphql,
   :administrateur_web_hook,
   :insee_api_v3,
   :instructeur_bypass_email_login_token,

config/routes.rb

@@ -219,7 +219,7 @@ Rails.application.routes.draw do
   # API
   #
 
-  authenticated :user, lambda { |user| user.administrateur_id } do
+  authenticated :user, lambda { |user| user.administrateur_id && Flipper.enabled?(:administrateur_graphql, user) } do
     mount GraphiQL::Rails::Engine, at: "/graphql", graphql_path: "/api/v2/graphql", via: :get
   end