如何防止此错误发生？(NODEJS Bcryptjs)

Question

我在我的应用程序中创建了一个用户更新控制器，但是问题是，当在postman中测试这个控制器时，我不能仅仅发送我想要编辑的信息，而不必传递密码，密码是用bcryptjs异步呈现的。

错误：

Error: Illegal arguments: undefined, string
    at Object.bcrypt.hashSync (/home/pc/api_foodelivery/node_modules/bcryptjs/dist/bcrypt.js:189:19)
    at exports.update (/home/pc/api_foodelivery/src/controllers/UserController/UpdateUser.js:16:37)
    at processTicksAndRejections (node:internal/process/task_queues:96:5)

const db = require('../../models/index');

const bcrypt = require('bcryptjs');

exports.update = async (req, res) => {
    const { id } = req.params;
    const { firstName, lastName, email, password, phoneNumber } = req.body;
    try {

        const user = await db.User.findOne({ where: { id } });

        if (!user) {
            return res.status(401).json('User does not exist');
        }

        const hashPassword = bcrypt.hashSync(password, 8);

        await user.update({
            firstName,
            lastName,
            email,
            password: hashPassword,
            phoneNumber,
        });

        return res.status(200).json('User updated!');
    } catch (err) {
        return console.log(err);
    }
}

据我所知，发生此错误是因为我没有将任何东西传递给我的hashPassword，但是在更新我的数据库用户时，如何使它不是强制性的呢？

Answer 1

const db = require('../../models/index');

const bcrypt = require('bcryptjs');

exports.update = async (req, res) => {
    const { id } = req.params;
    const { firstName, lastName, email, password, phoneNumber } = req.body;
    try {

        const user = await db.User.findOne({ where: { id } });

        if (!user) {
            return res.status(401).json('User does not exist');
        }

        // You need to check here if user wants to update password or not
        const updatedUser = {
            firstName,
            lastName,
            email,
            phoneNumber
        } // You may further check for every filed if not undefined here

        if(password && password !== "") {
            const hashPassword = bcrypt.hashSync(password, 8);
            updatedUser.password = hashPassword
        }


        await user.update(updatedUser);

        return res.status(200).json('User updated!');
    } catch (err) {
        return console.log(err);
    }
}