使用 multer 的节点 Js 文件上传错误。文件未定义

Question

我正在尝试使用 multer 在 express 端点上传图像文件，但它不起作用。我不断收到 500 意外字段错误。我需要能够从路线中读取图像

const router = require('express').Router();
const multer = require('multer');
const path = require('path');

const storage = multer.diskStorage({
    destination: './public/uploads/images',
    filename: function (req, file, cb) {
        cb(null, file.fieldname + '-' + Date.now() +
            path.extname(file.originalname));
    }
});

const upload = multer({ storage: storage, limits: { fieldSize: 10 * 1024 * 1024 } });


/**
 * @swagger
 * /api/items/test:
 *  post:
 *      summary: add a new item
 *      tags: [Item]
 *      description: use to add a new item to a specific vendor
 *      requestBody:
 *          content:
 *              multipart/form-data:
 *                  schema:
 *                      type: object
 *                      properties:
 *                          fileName:
 *                              type: string
 *                              format: binary
 */
 
 router.post('/test', upload.single('featuredImage'), async (req, res) => {
    try {
        console.log(req.file)
    } catch (error) {
        res.send(error.message);
    }
});

Answer 1

fileName 应对应于 multer 参考中给出的字段名称，即 featuredImage，因此错误

尝试替换它：

 *                      properties:
 *                          featuredImage:
 *                              type: string
 *                              format: binary

使用 multer 的节点 Js 文件上传错误。文件未定义

Node Js file upload error using multer. File is undefined

javascript

node.js

typescript

multer