init

lib/myapp_web/response.ex

@@ -0,0 +1,22 @@
+defmodule MyAppWeb.Response do
+
+  # error handling based on http status
+  def json(conn, data) do
+
+    output = cond do
+      conn.status && conn.status >= 400 -> 
+        %{
+          error: %{
+            status: conn.status,
+            message: data,
+          }
+        }
+      
+       true -> %{
+         data: data
+       }
+    end
+
+    Phoenix.Controller.json(conn, output)
+  end
+end