react-express-mongodb: lint sources

to fix some syntax issues in the existing code, the commit
put in place prettier and format the code

Signed-off-by: Jérémie Drouet <jeremie.drouet@gmail.com>

react-express-mongodb/backend/utils/helpers/responses.js

@@ -0,0 +1,21 @@
+const serverResponse = {
+    sendSuccess: (res, message, data = null) => {
+        const responseMessage = {
+            code: message.code ? message.code : 500,
+            success: message.success,
+            message: message.message,
+        };
+        if (data) { responseMessage.data = data; }
+        return res.status(message.code).json(responseMessage);
+    },
+    sendError: (res, error) => {
+        const responseMessage = {
+            code: error.code ? error.code : 500,
+            success: false,
+            message: error.message,
+        };
+        return res.status(error.code ? error.code : 500).json(responseMessage);
+    },
+};
+
+module.exports = serverResponse;