feat: complete day 1

day1/utils.js

@@ -0,0 +1,29 @@
+const handleError = (message, status, res) => {
+  res.status(status).json({ success: false, message });
+};
+
+const handleSuccess = (res, data = null, status = 200) => {
+  res.status(status).json({
+    success: true,
+    ...(data && { data }),
+  });
+};
+
+// Centralize Sequelize error handling
+const handleSequelizeError = (err, res) => {
+  if (err.name === "SequelizeValidationError") {
+    return handleError(err.errors.map((e) => e.message).join(", "), 400, res);
+  }
+  handleError(err.message, 500, res);
+};
+
+function deepEqual(a, b) {
+  return JSON.stringify(a) === JSON.stringify(b);
+}
+
+module.exports = {
+  handleError,
+  handleSuccess,
+  handleSequelizeError,
+  deepEqual,
+};