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I have a api that sends "server sent events" in real time. I need receive this data and process it in nodejs but all of information I´ve find refers to do capture events from a client side in a javascript code.
I don´t know if there are nodejs modules to do what I want in node.js
Regards
You can receive server-sent events in node.js with the eventsource module.
It is a pure JavaScript implementation of the EventSource client.
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I am building a multiplayer game and am using websockets as the data transfer for playing. I want to know how many ms it takes for a message to be send from the client to the server and the server to the client. I am using nodejs websocket package ws
to know how much MS it takes is not an answer anyone can directly give ... that is entirely dependent on the hardware you are running your source code on as well as the latency of the recipient
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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 am trying to generate a file in nodejs and I want to show writing file progress bar in the client-side HTML page. because I am writing a 5 lakh data into a file. once files generates complete in nodejs, it should notify users on the client side.
A typical design pattern for communicating server-side progress back to the client is to have the client establish a webSocket (or socket.io) connection to the server and then the server can send regular progress updates over the socket. When the client receives the updates and when it receives the final notification indicating completion, it can use Javascript to update the visual progress in the web page or do anything else it wants to in the page.
I would recommend using the socket.io library on both client and server as it makes things simpler than a plain webSocket.
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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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how create a WebRTC (video, audio & message) chat via socket.io
on this application you can:
talked to specify user.
talked with several users at the same time (notion of room).
the user can accept or reject the call.
There are many frameworks geared towards that specifically. Check out https://simplewebrtc.com/ and http://easyrtc.com/ as solid alternatives.
Note that for multiparty calls you may need to add a server component to handle the media itself.
Take a look to WebRTC in the real world and to Building a webRTC Video Chat Service On Nodejs and Krakenjs. Also, you can see Advanced chat using node.js and socket.io – Episode 2.