2020-02-15 16:32
Node.js vs Async/await in .net
Problem
Can someone explain/ redirect me, what is the difference between Node.js's async model(non blocking thread) vs any other language for example c#'s asy… Read More
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sail
protect static
dynamic images error
code
created controller
function request response
error
route
Node.js Recipes are structured in a Cookbook format featuring recipes that contain problem statements and solutions. A detailed explanation follows each problem statement of the recipe. This is usually contained within the solution; however, an optional discussion section can often contain other useful information helping to demonstrate how the solution works.
2020-02-15 15:27
How can I find the originally matched route at the time of a request in Express.Js
Problem
I need to recover the original route at the time of a request. Either the original one with the :V… Read More
2020-02-15 14:27
How to protect static folder in express with passport
Problem
I have a project based on express with a required authentication based on passport.
The backoffice is an angularjs app served… Read More
2020-02-15 13:31
Failing test displays "Error: timeout of 2000ms exceeded" when using Sinon-Chai
Problem
I have the following route (express) for which I'm writing an integration test.
Here's the code:
va… Read More
2020-02-15 12:26
How to alter a global variable from a function called when an event triggers?
Problem
Using NodeJS and node-csv, I'm trying to load rows in a Array. From an example in the module:
// node… Read More
2020-02-15 11:32
sails 0.9.8 not work, when created controller and lift it
Problem
I have a problem with sails 0.9.8. I already installed sails on my mac and also lift, it work well, but when start generate… Read More
2020-02-15 10:27
Swap/Dump session data using passport.js
Problem
I am using Passport for my MEAN stack-based app, that makes use of several APIs that require several OAuth tokens. Because logging in and ou… Read More
2020-02-15 09:29
Weird Node js error
Problem
I am not much familiar with node js, but I was forced to use node js to launch on heroku.
It all went smoothly, probably until a few days ago, but I didn't know… Read More
2020-02-15 08:29
Node js dynamic images- error
Problem
This piece of code is used to create dynamic images based on the height and width parameters set ..Say localhost:3000/50/50 would give an image of widt… Read More
2020-02-15 07:25
SSH2.SFTP node.js backup script freezes with large files
Problem
I'm trying to create a script to transfer files to my NAS for backup purposes.
I'm using the SSH2 module (https://github.com… Read More
2020-02-15 06:30
In an MVC framework where should we put our NODE.js files?
Problem
I have a PHP framework. Recently I've put some burden on NODE.js shoulders. Now I don't know where to put node.js files. F… Read More
2020-02-15 05:29
ExpressJS - Recommended way of defining routes
Problem
I am stuck with kind of a silly thing. There are two possible options (actions) that the user can choose. How should the routes be def… Read More
2020-02-15 04:25
Nodejs Passport display username in html page
Problem
In nodejs/.ejs file, I can display the user name as follows:
Welcome! Please Login.
Hello, .
How to do the same in html p… Read More
2020-02-15 03:25
Why doesn't this data display?
Problem
I have the following JSON object:
{
user:
{
city: 'San Francisco',
country: 'US',
displayName: 'Bernard'… Read More
2020-02-15 02:26
How to render an array in an html file? - Node.js, ejs
Problem
I'm working on a project, which will use given coordinates from a txt file and graph them.
My problem right now: I'm trying t… Read More
2020-02-15 01:33
how to test a nodejs exports that contains async function
Problem
I am not sure how to test a nodejs's exports function. Consider the code below:
exports.create_expense = (req, res, next)… Read More
2020-02-15 00:26
How to remove subdocument in mongoose?
Problem
i have a collection which have many document each of which have a subdocument array
comment : {
_id : ObjectId
name : String,
comments… Read More
2020-02-14 23:29
Neo4j in Azure mobile services
Problem
I have been trying to use a Neo4j database as my database in an Azure Mobile service. I was following this tutorial and I cant seem to get it to work… Read More
2020-02-14 22:32
Deployed version of NodeJS site not loading on AWS
Problem
I am doing my first deployment on AWS (using Elastic Beanstalk), and I am completely new to this.
I built a personal website usin… Read More
2020-02-14 21:28
arguments to callback not being passed (Node.js)
Problem
In the code below, I am trying to pass the argument "test" to the callback. The good news is that the callback is indeed being calle… Read More
2020-02-14 20:32
Requiring a folder with index.js
Problem
I'm trying to require a folder with index.js by specifying a folder name
import xyz = require("./xyz");
and get a compilation error "Unable to re… Read More
2020-02-14 19:26
Cannot loop MongoDB Collection Functions
Problem
For some reason, I cannot loop collection.count. It keeps printing filename[5] 5 times instead of starting at 1 and going to 5.
This make… Read More
2020-02-14 18:29
How to get html tag attribute values using JavaScript Regular Expressions?
Problem
Suppose I have this HTML in a string:
And I have this regular expression, to get the values inside the… Read More
2020-02-14 17:25
Javascript equivalents in V8?
Problem
I'm playing with NodeJS and V8 in an attempt to learn both.
I'd like to translate this simple JS line in C++.
global.Game = { sleep: call_some_CPP_fu… Read More
2020-02-14 16:31
Downloading source files cache modernizr.load.1.5.4.js Grunt Build Stall
Problem
I have been using Yeoman to start building with web apps and such for maybe the last month. And I have been… Read More
2020-02-14 15:30
Understanding next middle-ware in the scope of express.js / sail.js controller
Problem
I am using sails.js which is built on top of express.js .
In my routes.js I defined a route like foll… Read More
2020-02-14 14:31
Using socket.io in multi files
Problem
I am using Node.js Express with socket.io.
//app.js
var server = http.createServer(app).listen(app.get('port'), function(){
console.log('Express se… Read More
2020-02-14 13:32
intel XDK directory browsing
Problem
I'm trying to get a way to reach and parse all JSON file from a directory, witch inside an Intel Xdk project. All files in my case stored in '/cards' fo… Read More
2020-02-14 12:26
Extracting Important words from a sentence using Node
Problem
I admit that I havent searched extensively in the SO database. I tried reading the natural npm package but doesnt seem to provi… Read More
2020-02-14 11:25
Why are my requests being paused when they're in a loop?
Problem
I am trying to test some some examples from the book I'm reading, "Learning Node 2012". And my application for testing the s… Read More
2020-02-14 10:32
ENV Variable Equivalent in Javascript
Problem
Before you flame me, I've done my research (Javascript ENV variables). I know that it is not possible to access system environment variables u… Read More
2020-02-14 09:25
Node.js sending http request in a loop
Problem
I'm actually facing a problem with my javascript code executed with node.js
i need to send http requests in a loop to a distant server (i set… Read More
2020-02-14 08:25
find file with wild card matching
Problem
In node.js, can I list files with wild card matching like
fs.readdirSync('C:/tmp/*.csv')?
I did not find the information on wild card matching… Read More
2020-02-14 07:28
What is advantage of using modules as ssh2 or control over exec command from local shell?
Problem
How to execute specific command (for example ls -al) on remote and fetch result success or… Read More
2020-02-14 06:31
NodeJs Express setting a View to see folder's content rendered as html
Problem
Having this code in my server.js
...
var express = require("express");
var app = express();
// Set the view… Read More
2020-02-14 05:32
How can versioning in the package.json file of npm packages be understood?
Problem
I want to know how the versioning works in package.json in a development cycle.
What is the meaning of ea… Read More
2020-02-14 04:26
Cannot GET / Nodejs Error
Problem
I'm using the tutorial found here: http://addyosmani.github.io/backbone-fundamentals/#create-a-simple-web-server and added the following code.
// Module d… Read More
2020-02-14 03:31
How to add dates to pm2 error logs?
Problem
Is there a way to add timestamps to error logs in .pm2/logs?
I noticed that pm2 logs command shows aggregated logs with timestamps, but looking… Read More
2020-02-14 02:26
Is setInterval handler considered a memory leak?
Problem
The javascript code:
function blah()
{
var blahInterval = setInterval(function(){
if( some_global_variable == 5 )… Read More
2020-02-14 01:27
MongoDB Bulk Insert where many documents already exist
Problem
I have a largish (~100) array of smallish documents (maybe 10 fields each) to insert in MongoDB. But many of them (perhaps al… Read More
2020-02-14 00:30
Use nodemon or supervisor to reload only the files without restart all the server - WebStorm
Problem
I just took a look to this tutorial: How can I run nodemon from within WebStorm?
I'm wo… Read More
2020-02-13 23:31
trouble using posted form data in express/node
Problem
Currently this is what I have:
Here's my Post method
app.post('/barchartentry', function(req, res){
res.render('barchart', {… Read More
2020-02-13 22:32
How to get response time of each proxy-request done by node-http-proxy?
Problem
i want to compute the response-time for each proxy-request, done by node-http-proxy, like this:
var httpProx… Read More
2020-02-13 21:29
Slow performance in Mongoose after upgrading from 3.5.7 to 3.8.4
Problem
I changed the version number of mongoose from 3.5.7 to 3.8.4 and performance took a huge hit in an import process. T… Read More
2020-02-13 20:25
node.js login with passport
Problem
I am implementing a basic login system with passport but I keep receiving this error when I login with the correct credentials:
Express
500 TypeError: C… Read More
2020-02-13 19:25
Let a Node.js WAMP.IO server subscribe to a clients publish in purpose to measure latency
Problem
I know that the intended use case of a Pub/Sub pattern is to let the clients "multicast" di… Read More
2020-02-13 18:31
Add a serverside stored javascript file to html (node.js)
Problem
I'm having a small problem with my project.
I'm using node and express for a little webpage .. it is rendering the html pa… Read More
2020-02-13 17:26
Nodejs use method in view
Problem
For example,In my Nodejs app,I have a router:
exports.test=function(req,res){
res.render('./admin/test.jade',{html:[a,b,c]);
}
And I have Underscore… Read More
2020-02-13 16:30
Object oriented style app with express.js and socket.io
Problem
I'm building an application in node, using express for simplify things and socket.io for sockets manipulation.
So, while I'm… Read More
2020-02-13 15:30
Sending Tree Structure in Node.js
Problem
I'm using the Arboreal library to send a tree structure to the frontend. However, I'm running into the issue of TypeError: Converting circular stru… Read More
2020-02-13 14:32
How to namespace modules in the browser but not in node
Problem
I have seen many examples of the self-invoking pattern that detects the global object (module.export / window) -- but I am no… Read More
2020-02-13 13:30
Accessing posted form data in node/express
Problem
I am working on a small JS application using node and expressto graph user data that is input with a form and then posted.
So far I've go… Read More
2020-02-13 12:25
socket.io in django template - node.js not service socket.io.js
Problem
i have Django app which need to use real time push to client.
i want to use node.js and socket.io (which i understood… Read More
2020-02-13 11:27
Avoid forced callbacks
Problem
I have a mongoose database query
var player;
Users.findById(req.user._id,function(err,user){
console.log('>>> user: '+user); //----2
p… Read More
2020-02-13 10:28
Implementing callbacks in my own modules
Problem
I have an problem and I guess the solution is using callbacks. But I'm not sure how.
When starting node.js the following code gets called:… Read More
2020-02-13 09:26
Does the NodeJS debugger crash when using `this` to call an anonymous function?
Problem
I have a js file with the following content:
(function (context) {
console.log(123);
debugge… Read More
2020-02-13 08:26
Node Js, Async Js, Listener must be a function
Problem
Below is the output log of the code below that, I don't know why it is throwing the error, I'm think the numbers at the end of the lin… Read More
2020-02-13 07:26
Node.js MongoDb with mongoose custom json response
Problem
I have a collection that replays with the data below when i get all documents.
But i would like to add a custom "grouping" to it s… Read More
2020-02-13 06:32
Is there any specific order of app.router , express.urlencoded and express.static(__public + "/public");
Problem
Is there any specific order in which these three commands should be written… Read More
2020-02-13 05:32
Node.js open chrome in full screen
Problem
I have to open google chrome to a specific page after the server, written in Node.js, is ready.
To do this I've used this code:
var open = requir… Read More
2020-02-13 04:27
Best way to populate data on DOM using jQuery and Node
Problem
I am using Node's Socket.io to push data from server to client browser.
On client I use jQuery to populate the returned rows i… Read More
2020-02-13 03:28
how to add a first line to a text file in node.js (using fs)
Problem
I'm trying to add a first line to an existing text file using node.js.
My actual code looks as follows:
var fs = req… Read More
2020-02-13 02:33
Existing Website to support Node.js web server
Problem
I have developed a simple website in php. I use WAMP server to run the website. As I am new to Node.js environment, I found that we ca… Read More
2020-02-13 01:30
in Node.js, how to get set-cookie value in a <meta http-equiv> tag
Problem
In Node.js, I need to catch instances where a cookie is set in a response, so I can manipulate it. I am addr… Read More
2020-02-13 00:28
How to the the object at index with node.js
Problem
I am a iOS developer, I just can't find the info about how to get the first object of a array or object at index of some array.
Proble… Read More
2020-02-12 23:29
response.json() rendering old variable
Problem
I have a simple JSON API which for some reason is rendering another value than what console.log is reporting that the value has.
My route:
a… Read More
2020-02-12 22:32
Node.js can't get output of spawned process
Problem
This code get output of spawned process. What is wrong? node version is v0.10.22
var spawn = require('child_process').spawn;
var what =… Read More
2020-02-12 21:30
Trouble getting a response from cursor.toArray() in Mongo/Node
Problem
node 0.10.24 + mongo node driver 1.3.23 on 32 bit linux
My callback here is never getting executed.
console.log(re… Read More
2020-02-12 20:28
Why my custom policy is not recognised in Sails JS
Problem
Following this screencast, I've created a policy in api/policies/flash.js. I then tried to use this policy in config/policies wher… Read More
2020-02-12 19:30
Display data inside input value using Jade
Problem
I'm fairly new to Jade and am wanting to display some outputted data as the value value of a text input. Like this:
input(type="text", na… Read More
2020-02-12 18:26
Authentication for Node.js App with Angular.js and iOS Clients
Problem
I've tried to read as many different answers and posts as possible, but I still can't quite settle on a solution that… Read More
2020-02-12 17:30
'Condtions hell' in node js
Problem
I have two layers in my application(express), first is module with function which is handling database queries, fs , and so on. Second is handling reques… Read More
2020-02-12 16:25
node.js code to append data to a file
Problem
How can I append data to a file using node.js
I already have a file named myfile.json with data. I want to check if the file name exists and t… Read More
2020-02-12 15:29
NoCompiling Node.JS modules separately and load runtime
Problem
Can we compile Node.js modules separately and load them runtime as we can do with modules in Flex?
My requirement is to avoid… Read More
2020-02-12 14:31
Nodeclipse + nodemon error
Problem
When I try to run an express app in nodeclipse, it gives me the error,
23 Jan 11:58:04 - [33m[nodemon] v1.0.13[39m
23 Jan 11:58:04 - [33m[nodemon… Read More
2020-02-12 13:29
Bluebird, promises and then()
Problem
I've been only using bluebird for a few days but I want to go over all my old code and promisify it :)
My problem is that I still don't fully grasp th… Read More
2020-02-12 12:28
Gulp has 2 tasks conflicting with each other
Problem
I have both javascript and css files that I am using a forked repo of gulp-rev lib[1] that both renames the files and updates the file r… Read More
2020-02-12 11:27
Node.js loading external stylesheets from Jade, inconsistent path
Problem
I am developing a nodejs application using the Jade template engine.
Inside my main("/") layout I have the followi… Read More
2020-02-12 10:32
Node.js keeps hanging/loading on localhost
Problem
I'm following this beginner node.js tutorial (http://debuggable.com/posts/understanding-node-js:4bd98440-45e4-4a9a-8ef7-0f7ecbdd56cb) and… Read More
2020-02-12 09:32
How to create tuples from an array in JavaScript?
Problem
IF I have an array, names = ['Jon', 'Stewart', 'Oliver'], I want to get all 3-tuples and 2-tuples:
Jon, Stewart, Oliver
Jon, Stewa… Read More
2020-02-12 08:29
Android Socket client node js server
Problem
I am creating an android client using socket not by Socket.io and node js is the server.
I need to know answers for this.
1.It is possible t… Read More
2020-02-12 07:32
Sailsjs change localization
Problem
I've been using Sails.js for quite some time and was wondering if there is a way to manually change the localization from the controllers depending on th… Read More
2020-02-12 06:32
Schema setup for a relationship counting system (MongoDB)
Problem
I am trying to see how frequently items (in a shopping cart) appear together. So if a customer buys item1 and item2, it has… Read More
2020-02-12 05:26
Running setup code before a test suite in Node Unit
Problem
When writing automated system/integration tests, it's common for the first step to run before all of the tests to be "start the s… Read More
2020-02-12 04:29
Make 2 async queries with node js
Problem
so I want to display a table with all the "room" in my database, I also want to show the creator of the room but only the id of the user is stocked… Read More
2020-02-12 03:29
Selenium get class attribute of element with javascript
Problem
I am using using Selenium to write test automation with Javascript. Trying to extract class attributes of a DOM element does… Read More
2020-02-12 02:29
Decrypting AES256 with node.js returns wrong final block length
Problem
Using this Gist I was able to successfully decrypt AES256 in Node.js 0.8.7. Then when I upgraded to Node.js 0.10.24… Read More
2020-02-10 14:25
How to reuse variables in Mocha tests?
Problem
In my mocha tests I always require the same libs. For example:
var mongoose = require('mongoose'),
User = mongoose.model('User'),
_ = req… Read More
2020-02-10 13:32
Send payload notification with node-gcm to android device
Problem
I'm using node-gcm to send notification to android device via GG GCM. The problem is, when I send 2 or more messages, they… Read More
2020-02-10 12:28
Parsing a JSON API in Node
Problem
I'm building a node wrapper for an external API and am having issues parsing the JSON response. The following code makes the request:
https = require "ht… Read More
2020-02-10 11:33
Mongoose, where do I define the model
Problem
I am building my first node/express/mongoose application. I am stuck on this error:
500 ReferenceError: ServerModel is not defined
Below is t… Read More
2020-02-10 10:30
Can node.js detect when it is closed?
Problem
I want to know if it is possible to detect when a node.js process is closed through clicking the 'X' on Windows. If so then how. I have tried p… Read More
2020-02-10 09:27
Evented api and/or callback api in nodejs
Problem
I would like to know what is the best way to handle an evented api. My first thought is wrapping it into a callback api but I have feeling… Read More
2020-02-10 08:32
What is the the meaning of `>=` or `~` before (node) module version numbers?
Problem
Can anyone explain the meaning of >= or ~ before (node) module version numbers. I looked around bu… Read More
2020-02-10 07:30
CouchDB throws '404 missing' error when inserting a user using nano
Problem
It seems CouchDB will randomly throw an error when trying to insert a user.
Here is the full response from Couch… Read More
2020-02-10 06:31
Socket.io Error: listen EADDRINUSE
Problem
I have a small problem. I want to run a webserver and allow it to communicate with server using socket.io but i get:
POST UPDATE
Chat Class:… Read More
2020-02-10 05:28
Is there any package for node.js which provides to connect over ssh to remote machine and execute shell command or run some python scripts?
Problem
Is there any package for node.js which pr… Read More
2020-02-10 04:29
Event loop and compute-intensive tasks problems with node > 0.8 (updated)
Problem
What I want to do is to add a REST server on top of the evolutionary algorithm I have in NodEO. I am fol… Read More
2020-02-10 03:25
URL rewriting not working with iframe expressjs
Problem
I am trying to rewrite the URL of an iframe using express.
Similar code works fine on files available in my public folder (which exp… Read More
2020-02-10 02:25
Error when adding platform in Cordova command line
Problem
I know what you're thinking. No, it's not any of the common errors you will see. I'm working on a Macbook, FYI. I am working with… Read More
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