你好，我有一个问题，我建立了一个项目，当我开始添加服务器端我正在使用节点js Express，我创建了从数据库(MongoDB)到特定URL的抓取帖子，我现在想添加用户，但我试图重新配置文件，并使用路由器，现在我得到404当我试图使帖子是上传一些代码

只需要知道错误的请求在哪里我想获取的URL是http://localhost:5000/shopping-cart/user/sign-up

Axios.post("http://localhost:5000/shopping-cart/user/sign-up", user).then((response) => {
      console.log(response);
    });

const express = require("express");
const app = express();
const mongoose = require("mongoose");
const path = require("path")
const productRouter = require("./routes/product.route");
const userRouter = require("./routes/user.route");
const { setServerConfiguration } = require("./config");

setServerConfiguration(app);
mongoose.connect('mongodb://localhost/shopping-cart-data-base');

app.use("/shopping-cart", productRouter);

app.use("/user/sign-up", userRouter);

app.listen(5000);

const router = require('express').Router();
const errorsHandler = require('../utils/errorsHandler');
const UserModel = require('../models/User');

router.post("/user/sign-up", async (req, res) => {
    let body = req.body;
    console.log(body)
    try{
        await UserModel.create({
            name: body.name,
            username: body.username,
            password: body.password,
            shoppingHistory: [],
          });
          res.send(body);
    }catch(e){
        return errorsHandler(e, req, res);
    }
});

module.exports = router;