node.js express 抛出错误，因为“body-parser deprecated undefined extended”
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express throws error as `body-parser deprecated undefined extended`
提问by 3gwebtrain
In my node app, I am using express. all works fine, But i am getting error in the cmd. I use all are updated modules...
在我的节点应用程序中，我使用的是 express。一切正常，但我在cmd. 我使用的都是更新的模块...
my code :
我的代码：
var express = require('express');
var bodyParser = require('body-parser');
var jade = require('jade');
var app = express();
app.set('view engine', 'jade');
app.set('views', __dirname + '/views');
app.use(express.static(__dirname + '/public'));
app.use(bodyParser.json()); // to support JSON-encoded bodies
app.use(bodyParser.urlencoded()); // to support URL-encoded bodies
app.get('/',function(req,res){
res.render('index.jade');
});
app.get('/login',function(req,res){
res.render('index.jade');
});
app.post('/login',function(req,res){
console.log(req.body);
});
app.get('/signup',function(req,res){
res.render('signup.jade');
});
var env = process.env.PORT || 3000;
app.listen(env, function(req, res){
console.log('i am working!');
});
Error:
错误：
D:\myLogin>node app
body-parser deprecated undefined extended: provide extended option app.js:11:20 //why i am getting this?
i am working!
{ username: '[email protected]', password: 'pass' } // i am getting response
Can any help me to understand this issue please?
任何人都可以帮助我理解这个问题吗？
回答by mscdex
You have to explicitly set extendedfor bodyParser.urlencoded()since the default value is going to change in the next major versionof body-parser. Example:
你必须明确地设置extended为bodyParser.urlencoded()自默认值会在接下来的主要版本改变的body-parser。例子：
app.use(bodyParser.urlencoded({ extended: true }));
Since express4.16.0, you can also do:
从express4.16.0 开始，您还可以执行以下操作：
app.use(express.urlencoded({ extended: true }))
回答by Dhiral Kaniya
Attention:With express version => 4.16.0the body-parsermiddleware was added back under the methods express.urlencoded()and express.json()
注意：由于express version => 4.16.0在body-parser中间件被下方法加回express.urlencoded()和express.json()
Which can be used as:
可以用作：
app.use(express.urlencoded({extended: true}));
app.use(express.json());
回答by mfreitas
The error says you need to provide the extended option for the body-parser like so:
该错误表示您需要为 body-parser 提供扩展选项，如下所示：
app.use(bodyParser.urlencoded({ extended: false }))
回答by tMan44wiz
As from Expressversion 4.16.0, you're expected to pass in extendedproperty inside the bodyParser.urlencoded()
从Express版本 4.16.0 开始，您应该在bodyParser.urlencoded() 中传入扩展属性
// parse JSON-encoded bodies and URL-encoded bodies
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));
See npm.js documentation page for sample: https://www.npmjs.com/package/body-parser#expressconnect-top-level-generic
有关示例，请参阅 npm.js 文档页面：https://www.npmjs.com/package/body-parser#expressconnect-top-level-generic
回答by Gowtham Sooryaraj
Set limit 50 MB for avoid data handling error., In urlencode limit 50mb is for help you to pass imageData throw url
设置限制 50 MB 以避免数据处理错误。，在 urlencode 限制 50 MB 是为了帮助您传递 imageData throw url
app.use(bodyParser.json({
limit : '50mb' ///////// LIMIT for JSON
}));
app.use(bodyParser.urlencoded({
limit : '50mb', ///////// LIMIT for URL ENCODE (image data)
extended : true
}));
