How to fix "window is not defined error" in js - javascript

This is my current code:
const mongoose = require("mongoose")
const params = new URLSearchParams(window.location.search)
module.exports = (req, res) => {
res.send({
creatorid: "",
whitelisted: false
})
}
At the moment, it is giving me the error: window is not defined. I have no idea why. Can someone help please?

As it was mentioned above. There is no window object in Node enviroment.
If you are using Express
var express = require('express');
var app = express();
app.get('/', function(req, res){
res.send('id: ' + req.query.id);
});
app.listen(3000);
Also check out this and this thred

Related

How to save data in mongodb with express node.js?

I am encountering a problem when I try to make a post request with mogoose using the Postman, i get the following answer:
<head>
<meta charset="utf-8">
<title>Error</title>
</head>
<body>
<pre>Cannot POST /</pre>
</body>
</html>
I can't understand the reason, my index.js code:
const express = require("express");
const mongoose = require("mongoose");
const cors = require('cors')
const bodyParser = require('body-parser')
mongoose.connect(
process.env.MONGODB_URL || "mongodb://localhost/trading",
{
useNewUrlParser: true,
useCreateIndex: true,
useUnifiedTopology: true,
}
).then(item => {
console.log('conectado com o banco')
}).catch((err)=>{
console.log(err)
});
const app = express();
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({extended: false}))
const candlesRoute = require("./routes/candles");
const home = require("./routes/home");
app.use((req, res, next) => {
res.header("Access-Control-Allow-Origin", "*");
res.header("Access-Control-Allow-Methods", 'GET,PUT,POST,DELETE');
app.use(cors());
next();
})
app.use("/", home);
app.use("/candles", candlesRoute);
const PORT = 8080;
app.listen(PORT, () => {
console.log("Servidor Conectado");
});
my route candles.js :
const express = require("express");
const router = express.Router();
const mongoose = require("mongoose");
require("../models/Candles");
const candlesTick = mongoose.model("candles");
router.post('/candles', async (req, res) => {
try {
const velas = req.body
await new candlesTick(velas).save();
console.log('successe')
} catch (error) {
console.log(error);
}
});
module.exports = router;
and finally my model Candles.js:
const mongoose = require('mongoose')
//const Schema = mongoose.Schema
const Candles = new mongoose.Schema({
titulo: {
type: String,
},
})
mongoose.model("candles", Candles);
my request in the Postman is as follows
{
"titulo": "DENT/ETH"
}
I have already tmbm send the data directly and even then it does not work, I do not understand the reason for this, please if anyone can help thanks
app.use("/candles", candlesRoute); will add namespace to that route and router also has candles in the post request. At the end the available route will be POST {{host}}/candles/candles.
Please try remove candles from
router.post('/candles', async (req, res) => {
...
})
or have the URL in postman as {{host}}/candles/candles
I think req.body is not parsed, because you've set bodyparser extendedUrl to false. Try this:
app.use(bodyParser.urlencoded({extended: true}))
Also you simply create your object with MyModel.create(myContent) instead of using new Model() + save().
you should have posted your terminal logs also but nvm :)
I can guess the problem by looking at your code : -
Your mongodb local URL is wrong there is no mention of port.
it is always like mongodb://localhost:27017/trading for local server
I have less idea about this but you didn't export model in Candles.js

returning undefined for get request

I have been doing a project in URL shortening and i am getting an undefined as a result to get request.
Also i get a blank page too as result,but according to my knowledge everything is ok,i can't figure out what is the mistake
Here's my code(please check the app.get section)
'use strict';
var bodyParser = require('body-parser')
var express = require('express');
var mongo = require('mongodb');
var mongoose = require('mongoose');
var http = require("http");
var cors = require('cors');
const dns = require('dns');
var app = express();
// Basic Configuration
var port = process.env.PORT || 3000;
/** this project needs a db !! **/
// mongoose.connect(process.env.DB_URI);
app.use(cors());
/** this project needs to parse POST bodies **/
// you should mount the body-parser here
app.use('/public', express.static(process.cwd() + '/public'));
app.get('/', function(req, res){
res.sendFile(process.cwd() + '/views/index.html');
});
// your first API endpoint...
app.get("/api/hello", function (req, res) {
res.json({greeting: 'hello API'});
});
mongoose.connect(process.env.MONGO_URI, { useNewUrlParser: true, useUnifiedTopology: true });
var saveSchema = new mongoose.Schema({
name: String,
url: Number,
});
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));
/** 3) Create and Save a Person */
var SaveData = mongoose.model('Save', saveSchema);
//**Here's the start of my problem,i think**
app.get("/api/shorturl/:id1",function(req,res){
SaveData.find({url:1},function(err,data){ console.log(data.name)//**i am getting undefined for this in console**
res.json(data.name);})
});
app.post("/api/shorturl/new",(req,res)=>{
var body=req.body.url;
dns.lookup(body,(err,data)=>{
var new2= new SaveData({name:body,url:1});
new2.save((err,data)=>{res.json(new2);});
})
});
app.listen(port, function () {
console.log('Node.js listening ...');
});
I checked my DB whether the schema data is inputted or not, it is getting inside DB, so retrieval makes the problem I think.
mongoose.model.prototype.find returns an array of objects found. If you type Array.prototype.name in a console somewhere, you'll get undefined. Instead, use mongoose.model.prototype.findOne.
Your enviorment variables are working? I notice you're not using dotenv module or something like that to configure your process.env.

Mongoose does not save anything to db with NodeJs

I have this very simple code that stores superhero name and power to database.
All connections work normally. When i ran mongod i used --dbpath C:/nodeprojects/sankarit/data. I have tried change the path like 50 times with different paths.
So my code sends nimi and supervoima (name, superpower) from client side and it tries to add them to database but literally nothing happens in db. When i write console.log("yay it works") on save function, it says that its working. And if i console log superhero it seems to work normally.
Here is client side:
$http.post("api/juttu", {nimi: "besthero", supervoima: "whiskey"}).success(function(response){
console.log(response.data);
}).error(function(){
console.log("Error")
})
Here is my server.js:
var express = require('express');
var path = require('path');
var app = express();
var bodyParser = require('body-parser');
var mongoose = require('mongoose');
mongoose.set('debug', true);
// SANKARI SCHEMA
var Sankari = require('./app/models/sankarit');
// CONTROLLERIT
var testCtrl = require('./server/testCtrl');
app.use(bodyParser.urlencoded({ extended: true}));
app.use(bodyParser.json());
app.use('/public', express.static(__dirname + '/public'));
// DB conn
// I have tried with /test, /heros, /sankariKanta, /sankarit
mongoose.connect('mongodb://127.0.0.1:27017/test');
mongoose.connection.once('connected', function() {
console.log("Connected to database")
});
//PORTTI
var port = process.env.PORT || 8080;
// ROUTER
var router = express.Router();
app.get('/', function(req, res) {
res.sendFile('index.html', {root: __dirname});
});
app.post("/api/juttu", testCtrl.juttu);
app.listen(port);
Here is the testCtrl:
var Sankari = require("../app/models/sankarit");
module.exports.juttu = function (req, res){
// Tried also var uusiSankari = new Sankari(req.body);
var uusiSankari = new Sankari();
uusiSankari.nimi = req.body.nimi;
uusiSankari.supervoima = req.body.supervoima;
uusiSankari.save(function(err){
if(err){
console.log(err);
} else{
// This is always showing up
console.log("This is working!");
}
});
};
Also when i try console.log(req.body); It is working correctly.
Here is schema(sankarit.js):
var mongoose = require('mongoose');
var Schema = mongoose.Schema;
var SankariSchema = ({
nimi: String,
supervoima: String
});
module.exports = mongoose.model('Sankari', SankariSchema);
When i run the program, the mongoose debug thing says:
Mongoose: sankaris.insert({ __v: 0, _id: ObjectId("57ff0a649dbf169c15000001"), nimi: 'besthero', s
upervoima: 'whiskey' }) {}
So when i debug and console log everything the program does it seems to work like dream. I have made these MEAN stack tutorials like 5-10 and everytime database worked normally. This is first time i'm trying to make whole code by myself. I tried solve this whole night but i didn't get absolutely anywhere.
You forgot to use the Schema
var mongoose = require('mongoose');
var Schema = mongoose.Schema;
var SankariSchema = Schema({
nimi: String,
supervoima: String
});
module.exports = mongoose.model('Sankari', SankariSchema);

using files with express server

var express = require('express'),
app = express(),
db = require('./db'),
bodyParser = require('body-parser'),
controller = require('./controller');
app.use(express.static('../public'));
app.get('/server', function (req, res) {
console.log(__dirname);
res.sendFile('/../client/index.html');
});
I have this express server set up but using the code above I get "Cannot GET /" when I view localhost:portnumber. If I change the GET method to:
app.get('/', function(req, res) {
res.sendFile(__dirname + '../client/index.html');
});
I get "'C:\Users\TC\Documents\Desktop\myapp\multiplayerWebSite\server..\client\index.html' at Error (native)" and if I change it to:
app.get('/', function(req, res) {
res.sendFile('../client/index.html');
});
I get "TypeError: path must be absolute or specify root to res.sendFile"
Error: ENOENT: no such file or directory
The server was working perfectly when I had everything in the root directory, but I wanted to change the folder structure to make it more neat/professional. If anyone could tell me what I'm doing wrong I'd appreciate it greatly. Thank you in advance!
You can use path module, there is a join method that take multiple paths to make one.
Exemple if you do:
path.join('test/musicfolder', '../videofolder/allreadyseen')
you will get 'test/videofolder/allreadyseen' .
you can see all the doc here : https://nodejs.org/api/path.html
var express = require('express'),
path = require('path'),
app = express(),
db = require('./db'),
bodyParser = require('body-parser'),
controller = require('./controller');
app.use(express.static(path.join(__dirname, '../public')));
app.get('/server', function (req, res) {
console.log(__dirname);
res.sendFile(path.join(__dirname, '../client/index.html'));
});

Timeout On POST Req Using MEAN Stack

I'm learning to create a RESTful API using Node and Express 4.0 and am having trouble just getting the POST req to work properly when tested with Postman in Chrome. The request times out when the save method is called (I think--I'm new to this).
Here's my base code:
server.js:
var express = require('express');
var app = express();
var bodyParser = require('body-parser');
app.use(bodyParser.urlencoded({ extended: true }));
app.use(bodyParser.json());
var port = process.env.PORT || 8080;
var mongoose = require('mongoose');
mongoose.connect('mongodb://node:node#ds033484.mongolab.com:33484/testdatabase');
var Dog = require('./app/models/dog');
var router = express.Router();
router.route('/dogs')
.post(function(req, res) {
var dog = new Dog();
dog.name = req.body.name;
dog.save(function(err) {
if (err)
return res.send (err);
res.json({ message: 'Dog created!' });
});
});
app.use('/api', router);
app.listen(port);
console.log('Code is testable on port ' + port);
app/models/dog.js:
var mongoose = require('mongoose');
var Schema = mongoose.Schema;
var DogSchema = new Schema({
name: String
});
module.exports = mongoose.model('Dog', DogSchema);
I tested the code with Postman, selecting POST from the dropdown menu and selecting x-www-form-urlencoded from the Body tab. I filled in the key (name) and the value "Clifford."
The request timed out.
So I added a few console logs to server.js:
router.use(function(req, res, next) {
console.log('Router is in use.');
next();
});
router.route('/dogs')
.post(function(req, res) {
console.log("Accessing Mongoose.");
var dog = new Dog();
console.log("New dog.");
dog.name = req.body.name;
console.log("The dog is named: " + dog.name);
dog.save(function(err) {
if (err)
return res.send (err);
res.json({ message: 'Dog created!' });
});
});
All of them show up, including "The dog is named: Clifford". As far as I can tell, that means it's a problem with the save method.
What should I be doing next? Any help would be much appreciated. I found a similar problem here: no req.body sent on POST requests
But OP here seems to just be using the wrong settings in his test and gets an error. The only error I get is the timeout.
It will work if you replace
router.route('/dogs').post(function(req, res) {});
by
app.post('/dogs', function(req, res) {});
By the way, if you're looking for a more efficient way to debug your node server than console.log(), I recommend node-inspector.

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