错误:使用multer和body解析器的json无效

I am currently using multer for multipart/form-data in node.js application alongside with body-parser.

我目前正在使用multer来处理多部分/表单数据。与body-parser结合的js应用程序。

I tried to POST form-data using POSTMAN, but it is getting this error.

我尝试使用POSTMAN发布表单数据，但是它会得到这个错误。

Error: invalid json
    at parse (/Users/k/Documents/application/node_modules/body-parser/lib/types/json.js:79:15)
    at /Users/k/Documents/application/node_modules/body-parser/lib/read.js:102:18
    at IncomingMessage.onEnd (/Users/k/Documents/application/node_modules/body-parser/node_modules/raw-body/index.js:136:7)
    at IncomingMessage.g (events.js:199:16)
    at IncomingMessage.emit (events.js:104:17)
    at _stream_readable.js:908:16
    at process._tickDomainCallback (node.js:381:11)

This is how I added multer and body-parser in my server.js

这就是我如何在我的server.js中添加multer和body-parser

var express = require('express');
var mongoose = require('mongoose');
var bodyParser = require('body-parser');
var multer = require('multer');

var app = express();

app.use(bodyParser.urlencoded({extended: true}));
app.use(bodyParser.json());
app.use(multer({ dest: './uploads/'}));

I think it is probably because multer is not working. When I remove body-parser and try again, it shows empty json for console.log(req.body) and console.log(req.files).

我想这可能是因为莫特没有工作。当我删除body解析器并再次尝试时，它显示了console.log(req.body)和console.log(req.files)的空json。

Note: body-parser version is 1.12.0 and multer version is 0.1.8.

注意:body-parser版本是1.12.0,multer版本是0.1.8。

1 个解决方案

#1

The problem is not that you have both libraries body-parser and multer. If you try to post with a browser extension like postman, please make sure Content-Type is multipart/form-data and not application/json in your request header.

问题不在于您同时拥有库体解析器和multer。如果您尝试使用postman之类的浏览器扩展来发布，请确保内容类型是多部分/表单数据，而不是请求头中的应用程序/json。