Silvio Li Silvio Li - 1 year ago 94
Javascript Question

TypeError: Cannot read property 'user_first_name' of undefined

I am trying to register an user with expressjs/mongoose, but I am getting the error below:

TypeError: Cannot read property 'user_first_name' of undefined
at C:\Quiz webPolitica\server.js:20:24
at Layer.handle [as handle_request] (C:\Quiz webPolitica\node_modules\express\lib\router\layer.js:95:5)
at next (C:\Quiz webPolitica\node_modules\express\lib\router\route.js:131:13)
at Route.dispatch (C:\Quiz webPolitica\node_modules\express\lib\router\route.js:112:3)
at Layer.handle [as handle_request] (C:\Quiz webPolitica\node_modules\express\lib\router\layer.js:95:5)
at C:\Quiz webPolitica\node_modules\express\lib\router\index.js:277:22
at Function.process_params (C:\Quiz webPolitica\node_modules\express\lib\router\index.js:330:12)
at next (C:\Quiz webPolitica\node_modules\express\lib\router\index.js:271:10)
at serveStatic (C:\Quiz webPolitica\node_modules\express\node_modules\serve-static\index.js:75:16)
at Layer.handle [as handle_request] (C:\Quiz webPolitica\node_modules\express\lib\router\layer.js:95:5)
at trim_prefix (C:\Quiz webPolitica\node_modules\express\lib\router\index.js:312:13)
at C:\Quiz webPolitica\node_modules\express\lib\router\index.js:280:7
at Function.process_params (C:\Quiz webPolitica\node_modules\express\lib\router\index.js:330:12)
at next (C:\Quiz webPolitica\node_modules\express\lib\router\index.js:271:10)
at expressInit (C:\Quiz webPolitica\node_modules\express\lib\middleware\init.js:33:5)
at Layer.handle [as handle_request] (C:\Quiz webPolitica\node_modules\express\lib\router\layer.js:95:5)


I've tried debugging for hours and looked up other people's problems, but I ain't getting anywhere. Any help is really appreaciated. Please see my code below:

server.js

var express = require('express');
var app = express();

app.use(express.static(__dirname + '/public'));

var mongoose = require('mongoose');
mongoose.connect('mongodb://localhost/iPolitico');

var Register_User_Schema = new mongoose.Schema({
Firstname: { type: String, required: true },
Lastname: { type: String, required: true },
Email: { type: String, required: true, index: { unique: true } },
Password: { type: String, required: true }
}, {collection:"user"});

var Register_User = mongoose.model("Register_User", Register_User_Schema);

app.post('/register', function(req,res){
new Register_User({
Firstname: req.body.user_first_name,
Lastname : req.body.user_last_name,
Email : req.body.user_email,
Password : req.body.user_password
}).save(function(err, doc){
if(err){
res.json;
}else{
app.use(express.static(__dirname + '/user_profile.html'));
}
})
});

app.get('/', function(req, res){
//res.send('hello world');
Register_User.find(function (err, data){
res.json(data);
});
});

app.listen(3000);


index.html

<form role="form" action="/register" method="POST" class="registration_form"> <!--action="javascript:;" onsubmit="register_user()"-->
<div class="form-group">
<label class="sr-only" for="form-first-name">First name</label>
<input type="text" name="user_first_name" id="user_first_name" placeholder="First name..." class="form-first-name form-control" >
</div>
<div class="form-group">
<label class="sr-only" for="form-last-name">Last name</label>
<input type="text" name="user_last_name" id="user_last_name" placeholder="Last name..." class="form-last-name form-control">
</div>
<div class="form-group">
<label class="sr-only" for="form-email">Email</label>
<input type="text" name="user_email" id="user_email" placeholder="Email..." class="form-email form-control" >
</div>
<div class="form-group">
<label class="sr-only" for="form-password">Senha</label>
<input type="password" name="user_password" id="user_password" placeholder="Senha..." class="form-password form-control" >
</div>
<div class="form-group">
<label class="sr-only" for="form-password">Confirmar Senha</label>
<input type="password" name="user_confirm_password" placeholder="Confirmar Senha..." class="form-password form-control" >
</div>
<button type="submit">Sign me up!</button>
</form>


As a side question. When I am done registering I want to redirect to a new page. I currently have "app.use(express.static(__dirname + '/user_profile.html'));", but I am quite sure this is not correct or half correct.

Answer Source

You don't have body-parser in your code.

See if this can help you:-

var express = require('express')
var bodyParser = require('body-parser')

var app = express()

app.use(bodyParser.urlencoded({ extended: false }))

app.use(bodyParser.json())

Add this in the top.

If still getting issue, refer doc.

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