获取MongoDB数据库中多个图像的位置

如何解决获取MongoDB数据库中多个图像的位置

我正在尝试使用Multer将多个文件从我的NodeJs应用程序上传到MongoDB数据库。但是问题是当我在数据库中保存文件位置时，仅保存了一个文件位置，而其他文件则被忽略。这是因为在我的函数中，我仅使用req.files[0].location保存第一个数组元素。我需要一种变通方法来创建循环并保存所有文件位置，而不是将数组元素的硬编码位置保存在req.files中。我需要将文件另存为

"imagePath": [
    {
      "small": "https://mean-ecom.s3.ap-south-1.amazonaws.com/1592947173797","big": "https://mean-ecom.s3.ap-south-1.amazonaws.com/1592947173797"
  },{
      "small": "https://mean-ecom.s3.ap-south-1.amazonaws.com/1592947173799","big": "https://mean-ecom.s3.ap-south-1.amazonaws.com/1592947173799"
  },{
      "small": "https://mean-ecom.s3.ap-south-1.amazonaws.com/1592947173711","big": "https://mean-ecom.s3.ap-south-1.amazonaws.com/1592947173711"
  },

下面是我的功能。我需要模型帮助，并以上述方式保存多个imagePath位置。任何帮助表示赞赏！

route.js：

const ProductController = require('./../controllers/productController');
const appConfig = require("./../config/appConfig");
const multer = require('multer');
const aws = require('aws-sdk');
const multerS3 = require('multer-s3');
const path = require('path');
const s3 = new aws.S3({ accessKeyId: "***",secretAccessKey: "***" });
 var upload = multer({
    storage: multerS3({
      s3: s3,bucket: 'mean-ecom',metadata: function (req,file,cb) {
        cb(null,{fieldName: file.originalname + path.extname(file.fieldname)});
      },key: function (req,Date.now().toString())}})});
let setRouter = (app) => {
    let baseUrl = appConfig.apiVersion;
app.post(baseUrl+'/post-product',upload.any('imagePath'),ProductController.postProduct)}
   module.exports = {
     setRouter: setRouter}

ProductController.postProduct：

const ProductModel = mongoose.model('Product')

let postProduct = (req,res) => {
    let newProduct = new ProductModel({

                imagePath: req.file && req.file.path})
            newProduct.save((err,result) => {
                if (err) { console.log('Error at saving new Product :: ProductController',err);
                 res.send(err);
            } else { 
                console.log('Successfully saved new Product'); res.send(result) }
            })}

productModel.js：

const mongoose = require('mongoose');
const Schema = mongoose.Schema;
let productSchema = new Schema(
    {
       imagePath: {
                type: String,default: ''    }})
mongoose.model('Product',productSchema);