Make publishing of BTCPay wallet balances optional

app/controllers/api/btcpay_controller.rb

@@ -1,4 +1,5 @@
 class Api::BtcpayController < Api::BaseController
+  before_action :require_feature_enabled
 
   def onchain_btc_balance
     balance = BtcpayManager::FetchOnchainWalletBalance.call
@@ -18,4 +19,11 @@ class Api::BtcpayController < Api::BaseController
            status: 500
   end
 
+  private
+
+    def require_feature_enabled
+      unless Setting.btcpay_publish_wallet_balances
+        http_status :not_found and return
+      end
+    end
 end

app/models/setting.rb

@@ -54,6 +54,8 @@ class Setting < RailsSettings::Base
   field :btcpay_auth_token, type: :string,
     default: ENV["BTCPAY_AUTH_TOKEN"].presence
 
+  field :btcpay_publish_wallet_balances, type: :boolean, default: true
+
   #
   # Discourse
   #

app/views/admin/settings/services/_btcpay.html.erb

@@ -21,5 +21,17 @@
         type: :password,
         title: "Auth Token"
       ) %>
+</ul>
+</section>
+<section>
+<h3>REST API</h3>
+<ul role="list">
+  <%= render FormElements::FieldsetToggleComponent.new(
+    form: f,
+    attribute: :btcpay_publish_wallet_balances,
+    enabled: Setting.btcpay_publish_wallet_balances?,
+    title: "Publish wallet balances",
+    description: "Publish the store's on-chain and Lightning wallet balances"
+  ) %>
 <% end %>
 </ul>