get cake balance from bsc wallet

app/graphql/types/user_type.rb

@@ -10,7 +10,10 @@ module Types
     field :email, String, null: false
     field :first_name, String, null: false
     field :last_name, String, null: false
-    field :wallet_address, String, null: true
     field :fiat_balance, FiatBalanceType, null: false
+    field :wallet, WalletType, null: false
+    def wallet
+      Wallet.new(object)
+    end
   end
 end

app/graphql/types/wallet_type.rb

@@ -0,0 +1,9 @@
+# frozen_string_literal: true
+module Types
+  class WalletType < Types::BaseObject
+    graphql_name "Wallet"
+
+    field :address, String, null: true
+    field :cake_balance, String, null: false
+  end
+end