API v1 financial_transaction_classes endpoint

app/controllers/api/v1/financial_transaction_classes_controller.rb

@@ -0,0 +1,26 @@
+class Api::V1::FinancialTransactionClassesController < Api::V1::BaseController
+  include Concerns::CollectionScope
+
+  def index
+    render json: search_scope
+  end
+
+  def show
+    render json: scope.find(params.require(:id))
+  end
+
+  private
+
+  def max_per_page
+    nil
+  end
+
+  def default_per_page
+    nil
+  end
+
+  def scope
+    FinancialTransactionClass.all
+  end
+
+end