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I develop an application like Whatsapp using Vuejs and Nodejs. Can I create a backend for the entire application with Socket.io? Is it possible with Socket.io Rest api? I think there should be a Rest api in parts like the login. Is it true that I prepare parts like login with socket.io? Thanks in advance.
You can use a framework like NestJs or Adonis (or many others). Those that I'm mentioning are ready to build a REST service and also use websockets (with socket.io).
It is normal to use both in a project. The socket will be an open and persistent connection to the server, in the other case the http request is a petition, so ask yourself, Does this feature need constant communication with the server or could I ask for something and thats it??
Note: You can create a whole server using only sockets (socket.io in your case) but I think that a combination of ws + http is better
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I want to show real time push notification to every user if someone started any kind off process. My project is in Angular and Node JS. If any user start some process then every user in the site should be notified by push notification
For your server side, you would need a socket solution to enable real time notification.
Since you are using NodeJs as your backend, you can try out socket.io. I personally find them quite easy to use. Their documentation can be found via their site.
https://socket.io/
If you need a step by step guide on how to combine nodeJS + socket.io + Angular, you can refer to this guide by DigitalOcean
https://www.digitalocean.com/community/tutorials/angular-socket-io
On the angular side, you need to develop a way to ensure the notification is consumed by all users. Two simple methods about this could
either be done via your state management like NGRX,
or via a global service
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Need to know about mean stack development. How the node.js connects with angular. I know the one method which is connect angular by rest apis. So it same in MEAN ? We make apis with node&Express and call in angular app ? OR there is some other options too ?
If you want to use Angular, I think you need to first understand the difference between and the separation of frontend and backend.
Your frontend Angular application is an SPA (Single Page Application), which makes calles to another application. This is your API, which is your backend application. This could either be a PHP script or a NodeJS script (which could use Express or any other library that helps you building a REST API).
Get started by looking at how to build an Angular app and how to build a REST API with NodeJS and Express.
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What would be the best set of technologies to use if I want to make a desktop application which would fetch data from server through JSON (node.js with MYSQL).
Side note: Currently we are using angular.js for frontend but the client wants a desktop app and is adamant. Don't want to change anything server side.
If you want to go ahead with js itself then you might want to look into electronjs you can even combine it with other frontend techs such as Angular, React or VueJs.
Another option is NW.js.
Look into both and choose as per your requirements both have pros and cons.
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Guys i'm new in Nodejs,
please can it be used on the web like php?
First you decide what type of situation you have.
If you want to make shopping site, social network etc which use large data processing , then you go for node.js (for example linkedin is made in node.js ).
But if your website does not require much data processing in server side you can go for php.
Nodejs is little difficult to use but once you use it perfectly your website will run smooth.
Both are good languages.
Yes you can easily use nodejs as a server side language.
Nodejs is faster than php. You can use nodejs to speedup your loading speed of your website.
Because nodejs heavily use callbacks.
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Understood the concepts of Redux and Node theoretically - planning to use one of them? both? not sure - How do they compare to each other ? When creating a new app (using React for Example) - can we use both of them? or one of them should be enough? I am stuck with this question. What should be the criteria here? People with expertise with these technologies, please help.
nodejs is a library for writing server-side logic in javascript.
redux is a library for managing application state, either client-side or server-side.
For example, it is possible to build an application that uses redux to manage its state on the client. This application could then communicate to a server-side api that is built using nodejs. The server-side api could also be managing its local state using redux.
So you can see that the two technologies are not mutually exclusive, it is not nodejs or redux. Instead you can choose to use them for their respective purposes separately or in conjunction.