Function getUserById

controller/userController.js:279–292

(req, res)

// Get user by ID
const getUserById = async (req, res) => {
  try {
    const userId = req.params.id;
    const user = await User.findById(userId).populate("product_id");

    if (!user) {
      return res.status(404).json({ message: "User not found" });
    }
    res.status(200).json({ message: "User found", user });
  } catch (error) {
    console.error(error);
    res.status(500).json({ message: "Internal Server Error" });
  }
};

// Update user
const updateUser = async (req, res) => {