Node.js Express: BodyParser Syntax - node.js

Question

Hi everyone i am new to node.js and express. i am just experimenting with various node.js code from various tutorials.
As per the official npm website correct syntax to use methodOverride is
// Be sure to place after the body parser if you want to accept the method
// override using a post parameter
app.use(express.bodyParser());
// Accepts a single argument, the name of the method override parameter,
// defaults to "_method"
app.use(require('express-method-override')('method_override_param_name'));
But when i used this, i got the following error
Error: Most middleware (like bodyParser) is no longer bundled with Express and
ust be installed separately. Please see https://github.com/senchalabs/connect#m
ddleware.
at Function.Object.defineProperty.get (E:\node_modules\npm\node_modules\exp
ess\lib\express.js:89:13)
As far as i researched app.use(express.bodyParser()) is deprecated. Express no longer includes the bodyParser middleware. So to my guess app.use(bodyParser()) is right and i altered my code like this
app.use(bodyParser());
app.use(require('express-method-override')('method_override_param_name'));
Below is my put functionality code
app.put('/user/:id', function(req, res){
console.log('Sha Put testing');
console.log(req.body);
//user.findByIdAndUpdate({email: req.params.id},
user.update({email: req.params.id},
{
email: req.body.email,
name: req.body.name,
age : req.body.age
},
function(err, docs){
if(err) res.json('Error here paiyaa -->' + err);
else
{
console.log(docs);
res.redirect('/user/'+req.body.email);
}
});
});
When i replace app.put with app.post it works fine. But my task is to achieve PUT functionality.As mentioned in express-method-override source, I have used hidden field with the name _method, which helps to override POST method, and facilitates PUT method.
My Edit form code is
<h1>Editing #{user.name}'s profile!</h1>
form(method="POST", action="/user/#{user._id}")
input(type="hidden", name="_method", value="PUT")
p Name:
input(type="text", name="name", value="#{user.name}")
p Age:
input(type="number", name="age", value="#{user.age}")
p
input(type="submit")
When i run the above code it throws below error while submitting the form
Cannot POST /user/test#gmail.com
Can some expert help me to fix this and understand bit clear please

Answer 1

You have a PUT route defined with app.put, but are trying to POST to it. The verbs need to match up, so either your request should be a PUT (makes sense for your user.update method) or change the route to app.post.
EDIT:
Looking at the source for express-method-override, your request body needs to have a _method: 'PUT' (as a default -- currently you are passing 'method_override_param_name' property on it in order for the middleware to override the POST verb.
If you are not already, you should also be including the body-parser middleware. npm install body-parser on the commandline or add it to your package.json and run npm install. var bodyParser = require('body-parser'); will then give the rest of your code what it needs to include the middleware.