将项目传递到MongoDB时请求失败，状态码为404

如何解决将项目传递到MongoDB时请求失败，状态码为404

首先，我是编程的真正初学者，我无法弄清楚这有什么问题 它只会显示未找到404错误

下面是我的猫鼬模式

const mongoose = require("mongoose");

const OrderSchema = new mongoose.Schema({
  user_id: {
    type: String,required: true,},order_date: {
    type: Date,default: Date.now,total_items: {
    type: Number,total: {
    type: Number,name: {
    type: String,address: {
    type: String,postalcode: {
    type: String,city: {
    type: String,country: {
    type: String,phonenumber: {
    type: Number,order_item_status: {
    //purchased item delivery status,added by constant at saving from controller nmethod
    type: String,quantity_array: [
    {
      type: String,],purchase_array: [
    {
      type: String,item_array: [
    {
      type: String,});

module.exports = Order = mongoose.model("order",OrderSchema);

下面是我要发送的数据集。

{"user_id":"5f5058acc90b575a40d9e570","name":"Alfonso","address":"Victoria","postalcode":"11011B","city":"Moscow","country":"Russia","phonenumber":null,"total_items":2,"total":15,"quantity_array":[2,1],"purchase_array":["pb_single","pb_single"],"item_array":["5f55e91271b808206c132d7c","5f55e8e171b808206c132d7a"]}

及以下是我用来将上述对象发送到服务器的功能。

let orderComplete = {
      user_id: localStorage.getItem("id"),name: this.state.name,address: this.state.address,postalcode: this.state.postalcode,city: this.state.city,country: this.state.country,phonenumber: this.state.phonenumber,total_items: this.state.totalitems,total: this.state.amount,quantity_array: this.state.quantityArray,purchase_array: this.state.purchaseTypeArray,item_array: this.state.comicIdArray,};
    console.log("checkpoint : orderComplete" + JSON.stringify(orderComplete));
    var jwt_token = localStorage.getItem("currentToken"); //because it is a protected route
    const config = {
      headers: {
        "Content-Type": "application/json","x-auth-token": jwt_token,};
    const body = JSON.stringify(orderComplete);
    const result = await axios
      .post("http://localhost:5000/createorder",body,config)
      .then((res2) => {
        console.log(res2);
        toast.success(res2);
      })
      .catch((error) => {
        toast.error(error);
        console.log(error);
      });

    if (result == true) {
      this.props.history.push("/products");
      toast.success("Order Success");
    }
  }

当从服务器端捕获时 功能如下

const createOrder = async (req,res) => {
  try {
    let user_id = req.body.user_id;
    let purchase_type = req.body.purchase_type;
    let item_array = req.body.item_array;
    let quantity_array = req.body.quantity_array;
    let purchase_array = req.body.purchase_array;
    let total_items = req.body.total_items;
    let total = req.body.total;
    let name = req.body.name;
    let address = req.body.address;
    let postalcode = req.body.postalcode;
    let city = req.body.city;
    let country = req.body.country;
    let phonenumber = req.body.phonenumber;

    let order_item_status = "processing";

    if (
      purchase_type == false ||
      user_id == false ||
      item_array == false ||
      quantity_array == false ||
      purchase_array == false ||
      total_items == false ||
      total == false ||
      name == false ||
      address == false ||
      postalcode == false ||
      city == false ||
      country == false ||
      phonenumber == false
    ) {
      return res.status(400).send("Not all mandatory values have been set!");
    }

    OrderObject = new Order({
      //create  object to set data
      purchase_type,user_id,item_array,quantity_array,purchase_array,total_items,total,name,address,postalcode,city,country,phonenumber,order_item_status,});

    await OrderObject.save();
    res.status(200).send("Order success");
  } catch (error) {
    console.log("Error caught at ",error);
    res.status(500).send("Server Error");
  }
};

我一遍又一遍地尝试，但是我无法弄清楚到底出了什么问题，即使异常处理程序也没有包含很多信息。

我非常需要您的帮助，谢谢。