Node.js is an event based, asynchronous I/O framework that uses Google's V8 JavaScript engine. Node.js is commonly used for heavy client-server JavaScript applications.

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Handling multiple async functions

I want to run multiple asynchronous functions and use their results in a final function that is called after all async functions have finished. For example, reading 2 files at the same time and doing ...
4
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1answer
56 views

Tic-Tac-Toe command line

I created a simple Tic-Tac-Toe. I'm looking for any critiques from a code standpoint: general structure / style / efficiency. Unfortunately I couldn't get a live demo working because of the ...
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18 views

Issues with express register on Cloud9 [closed]

I'm trying to build a restful API on Cloud9, but my project just times out when I try and load it in the browser, or post something using postman. (it runs fine in the console.) ...
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27 views

sed-like attempt from database in node

The following code and test data works, but I have had to add delays between writes to MySQL otherwise it acts funny (especially on the target data set which is over 700 rows). The table is simply a ...
4
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1answer
64 views

NodeJS logging module

This code is for a NodeJS logging module. I created it because I wanted to find a way to log different type of things but not show them all at the same time. I also wanted to format the logs in a ...
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1answer
33 views

Node.js Electrolyte constructor [closed]

The code below works, and I'm not that unhappy with it, it just feels a bit awkward. Is there a cleaner way to setup an electrolyte component with multiple methods on the object? The examples don't ...
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1answer
46 views

Realtime chat service

I am new to Node.js and Socket.io. I implemented a realtime chat service that has a chatroom feature. When the actual product is launched, there will be at least 200 concurrent users with 50 groups of ...
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1answer
28 views

Separate logic in files node

I have a Node project and am trying to make my code better, so I've created a new folder with a file like following which encapsulates the read and write file. This is working and my question is if ...
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1answer
34 views

Testing console.log output using assert.deepEqual in NodeJS

I'm new to testing and NodeJS and I'd like to test the output in console.log using assert.deepEqual to test whether or not the result has correct data. For ...
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1answer
49 views

Event driven timed I/O

The following code is used to access a shield which converts settings written over I2C to Servo output. I make use of the MRAA library since that's the default supported by my hardware. To prevent ...
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1answer
31 views

DNS lookup function

How can I combine multiple DNS lookups without nesting a whole bunch of if else statements? How would this impact performance? I ...
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1answer
31 views

Running async processes in node.js on multiple cores

Using the async and child_process modules, I can create true asynchronous processing. My question is, how can I ensure that it is running on multiple cores? ...
2
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1answer
45 views

Net health monitoring

This is a little net health monitoring project I made in NodeJS. It pings google every second and stores the result (true/false) along with the date in a database (MongoDB). I've collected enough ...
2
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1answer
28 views

Dependency Injection with classes which are created often

I have a question about dependency injection and best practices when using simple classes which are meant to be created often, which have dependencies on external services. Here's a (vastly) ...
2
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1answer
35 views

Node.JS Twitter Count Module

I would like someone review this code and tell if it can be done better, or if the code is elegant and simple enough for the task at hand. I used code climate and I got 4/4 and my test coverage is ...
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0answers
89 views

RSS parser for Node.JS

I would like someone review this code and tell if it can be done better, or if the code is elegant and simple enough for the task at hand. I used code climate and I got 4/4 and my test coverage is ...
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0answers
21 views

Semaphore with Node and Redis

I'm learning Node and Redis and created a semaphore for master/slaves. ...
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1answer
69 views

Node.js Paging with Mongodb

I want to create variable paging on Node.js with MongoDB. I use MongoJS on client side create a request: ...
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0answers
20 views

Sharing app methods to routes in Expressjs 4

I would like to know the right way to execute an action(a method) from my app into my routes. I have to do this because I have a POST route waiting to be call from other pages (like an API call) but ...
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0answers
29 views

Appropriate use of bind for elasticsearch callback

I'm starting a new project with Node. I'm learning the object model, and the code below is my first module. One of the things threw me was the behavior of this ...
5
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1answer
117 views

JavaScript 8-bit floating point

To start, I am in the wrong language and I think it is time learn some C++ and compile it as an add-on for NodeJS. For now, though, I have a few code snippets that work that may be interesting or may ...
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0answers
17 views

Middleware code for preventing repetitive identical requests in Express

I have problems when some of my users starts to frenzy click the save button generating duplicate records on the database. I wanted to create a generic solution so I could reuse it on another projects ...
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2answers
119 views

Generate URLs from a complex JSON object using recursion

My task is here as follows : Input : A complex/nested JSON object with nested arrays as well objects Output : A JSON object that contains a set of URLs with their titles: ( key,value ) ...
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0answers
54 views

Exiting a Promise early

I'm using a Promise chain to write some data to a file, execute a command on it, inspect its results, and send the results, using Express.js. The thing about my function is that I need to be able to ...
3
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0answers
33 views

Q.js worker pool

I'm building a program to scrape data about hockey games in order to compile statistics. One of the run modes will process all of the games in a single season (1230). Processing a single game consists ...
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34 views

Save file from request to database

I am saving (image) files to PostgreSQL database in my Node.js and Express server application. The code is used to upload user images to server (at the moment it is not restricted to image files in ...
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0answers
75 views

Personal Website

I have written the following code for my personal website, in Jade and Stylus. Can anyone review this code? Are there any tips that you can give me on how to make it better? Here is the main-page.jade ...
4
votes
1answer
60 views

Continuable if error is null

I made a method that I can use to avoid having to handle errors from callbacks. What it does is, call the passed method only if the first argument is null. So essentially it will bypass to the last ...
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32 views

Built a database layer for an online / offline Crypto Currency Wallet: Browser Storage

This is largely self contained, iirc the only dependencies are: Bitcore bower install bitcore PouchDb ...
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0answers
48 views

Parsing sentences to create a chat bot

I am developing a chat bot with Node.Js. I am trying to find efficient way to parsing sentence. ...
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2answers
92 views

Check if variable is sent

I have this piece of code in my Node.js API and I feel like it could (should) be optimized. ...
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0answers
19 views

Sourcemap translator service

This is my first attempt to a serious Node.js application, I've tried to follow the async style of Node at my best, but I have several doubts and I am sure that this code can be massively improved. ...
2
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1answer
46 views

Database module for node.js

This will get quite clumsy if I continue down the road with this design, so I'm asking you, enlightened ones, is there a way to make this prettier and easier to understand? Primarily the ...
2
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1answer
55 views

Parameterized route

Is this approach considered good practice, or should I create separate router.delete functions for all my routes? Please, explain why. ...
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0answers
37 views

Monitoring a few servers / API endpoints

I am trying to create a simple NodeJS program that monitors few provided servers or machines and provides output in JSON. ...
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0answers
91 views

Payment Gateway - single payment with credit card (handling path & choosing gateway)

This was an assignment and I am new to Node.js. You can find the complete project here. The code worked fine but was rejected, and wasn't given any reason even after asked. Statement: Create a ...
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0answers
27 views

NodeJS socket for handling errors

It's the first time managing Mongoose by socket.io and I'm wondering if this could be a good way: ...
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0answers
76 views

NodeJS authentication function rewrite with promises

I will post both of the modules, some of the code in them may be "irrelevant" for the main concern here, which is Security.prototype.authenticate(). Nevertheless, comments are welcome about all of the ...
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1answer
111 views

Consuming an API with authentication

I have created a library which consumes the Imgur API. This is the main file. ...
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1answer
69 views

Handling callbacks when doing async programming and dealing with scope

I'm using HapiJS to create a little backend for my side-project. In grabbing RSS feeds, I want to loop through my list of website URLs, grab the correct RSS links in the ...
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votes
2answers
67 views

Command line utility to output modified Markdown

What this command line utility does is to take a text file and update the content a bit before turning it into Markdown. For example, the first for loop searches all the straight quotes and replace ...
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1answer
227 views

Multiplayer Tic Tac Toe with Socket.io [closed]

I am trying to learn Socket.io and develop a multiplayer tic tac toe game. Right now, I have developed a game that plays well when hosted locally, but I cannot seem to transmit game moves between the ...
2
votes
2answers
91 views

SQL Server to MongoDB Template

Looking for feedback on a set of templates I've just created. I'm planning on converting them to Yeoman but want to make sure they're ready for prime time before doing so. They are currently in ...
5
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1answer
80 views

Creating an async consumable object in Node

Background I have a situation where I have fixed number of objects with their own routines that would need to be called with the same initial message. To accomplish this, I have a Factory that ...
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0answers
20 views

Input a web page with poker events, output a gcal compatible CSV file

This script takes input from poker tournament pages at pokeratlas dot com, and outputs a CSV file that I can import to Google Calendar, listing each of the tournament events, start time, location, and ...
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0answers
12 views

Extend a rethinkdb query, with `if`s

I have something roughly like this: ...
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0answers
40 views

Sign-up controller and service

I'm programing server side node for a huge project. And I'm thinking my brains out about the best programming pattern that will be suitable for fast modification and changes. Tell me what you think ...
2
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0answers
43 views

Rewriting authentication controller using promises

I am in the process of refactoring some complex code that uses callbacks to instead use promises. I am trying to figure out if my proposed approaches make sense. ...
5
votes
1answer
224 views

Minimax for Tic-Tac-Toe

I have written AI for Tic-Tac-Toe using Negamax in JavaScript. The Negamax object is translated from an implementation written in Python. The code runs on a Node.js server and the player interacts ...
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1answer
38 views

Mixing assignment and expressions- good or bad? [closed]

As far as mixing assignment and expressions.... is it better to do or not to do? For cleaner code and readability. mixing: ...