High scale concurrent audio conversion system

I have a requirement for a web application in the following things happens 1 user upload audio files to the web server 2 web server reads the metadata(duration, bit rate,format,channel count etc...) & reduce the bit rate of those files and stores in ...

mongodb aggegation- project key in root to inside an object

Hi I have the following requirement.Somebody plz help me. I am doing a mongodb aggregate operation for which my final data looks like below { "data":{ }, "subdata":[{}] } For some reason I would like to get the final result as { "data":{ "su...

User tagging inside a text paragraph logic

Hi I have a requirement for a basic social networking application. My question may seems to be stupid, this is just to get the perspectives and programmatic logic from you guys. My requirement is that the users must be able to mention other users nam...

Angular 2 or React for my new project?

Hi, I am a huge fan of JavaScript frameworks and functional programing.I have a requirement for a new project with is a SPA. I am confused with which framework should I choose.I read so many times that React is not a framework.Its just a UI library.B...

Can somebody tell me the best practices for sending push notifications to millions of devices?

I am using Node.js + MongoDB as backend. I wish to send push notifications to Android and iOS devices. On each user action, the notifications are send to his/her followers. The app has pretty good number of users and apps current installs number is m...

What's the best way to separate admin section in Node.js (Express) and EJS?

I am planning to develop an app using Node.js express and EJS as view engine.There are two parts one end user part and one admin section. Both of them differ a lot in UI.I would like to have the routes as www.mydomain.com as end user part and www.myd...

Which Node.js framework are you using currently (or your favorite)?

Any mnongo experts here.Plz help me on building MongoDB news feed schema design for social application

am developing a social application in which user can upload photo albums, update their status and follow other users. I am using Node.js + MongoDB. I have a requirement to display news feeds in which each user gets the update of his followers. Here i...

Node.js: How to transfer uploaded file directly to S3 without double waiting time?

Hi i am developing REST api's for mobile application in which user uploads images to app server then server uploads images to amazon s3 and update the database. The problem: 1.User wants to upload 10MB file It takes 10 seconds to travel from user'...

Best practices for Node.js job queue?

I am planning to implement a delayed job queue system in nodejs(express js) for tasks such as app analytics,image processing,file processing etc.. I tried following libraries https://github.com/Automattic/kue https://github.com/rvagg/node-worker-farm...