cors VS Socket.io

// https://www.npmjs.com/package/nextjs-cors import NextCors from 'nextjs-cors'; async function handler(req, res) { // Run the cors middleware // nextjs-cors uses the cors package, so we invite you to check the documentation https://github.com/expressjs/cors await NextCors(req, res, { // Options methods: ['GET', 'HEAD', 'PUT', 'PATCH', 'POST', 'DELETE'], origin: '*', optionsSuccessStatus: 200, // some legacy browsers (IE11, various SmartTVs) choke on 204 }); // Rest of the API logic res.json({ message: 'Hello NextJs Cors!' }); }

import axios from "axios"; import Cors from "cors"; import initMiddleware from "../../lib/init-middleware"; // Initialize the cors middleware const cors = initMiddleware( // You can read more about the available options here: https://github.com/expressjs/cors#configuration-options Cors({ // Only allow requests with GET, POST and OPTIONS methods: ['GET', 'POST', 'OPTIONS'], }) ); export default async function myBooksHandler(req, res) { await cors(req, res); const address = req.query.address; const chain = "polygon"; const options = { method: 'GET', url: 'https://api.nftport.xyz/v0/accounts/creators/0x1xxxxxxxxxxxxx5b', params: {chain: 'polygon', include: 'metadata'}, headers: { 'Content-Type': 'application/json', Authorization: 'xxxxxxxxx' } }; try { const result = await axios.request(options) res.status(200).json({ result: result.data }) } catch (err) { res.status(500).json({ error: 'failed to load data' }) } };

CORS: Cross-Origin Resource-Sharing enabled using cors

import Cors from "cors"; function initMiddleware(middleware) { return (req, res) => new Promise((resolve, reject) => { middleware(req, res, (result) => { if (result instanceof Error) { return reject(result); } return resolve(result); }); }); } const cors = initMiddleware( // You can read more about the available options here: https://github.com/expressjs/cors#configuration-options Cors({ // Only allow requests with GET, POST and OPTIONS methods: ["GET"], }) ); export default async function handler(req, res) { // Run cors await cors(req, res); // Rest of the API logic res.json({ message: "Hello Everyone!" }); }

My Nodejs restful service has the following endpoint http://localhost:3000/api/countries. I am using this middleware https://github.com/expressjs/cors. I have cors enabled thus:-

You could also add cors like this and then configure it to only allow requests from your site.

Check out https://github.com/expressjs/cors#configuration-options

The library you're going to use to help fix the CORS errors you've been battling is the cors middleware package. Head to the directory containing your Express application in your terminal, and let's get it installed:

You can add the cors middleware package to your application to help you send the correct CORS response headers from your API endpoints. By default, the headers it sends will allow any web page to make requests to your API, so make sure you check out the configuration options, and at the very least set the origin option so that you are restricting which web pages are able to call your API (unless you’re running an API for public use, in which case this won’t be an issue).

The first is the script tag in the head of our HTML document that loads the Socket.IO client library. This script tag includes the Socket.IO client library that will communicate with our socket.io server from the code above.

Before diving into this tutorial, if you find microservices mysterious, check out my previous article for a detailed explanation. In this hands-on tutorial, we'll build a real-time chat server using Node.js, Socket.io, RabbitMQ, and Docker. Get ready for a practical journey into the world of microservices! Let's begin.

Socket.io Docs

Now we will be implementing socket logic using socket.io for building websockets. This library provides an abstraction layer on top of WebSockets, simplifying the process of creating real-time applications. For better maintainability, it is recommended to create a separate file for socket calls. To do this, navigate to the src folder, create a folder named services, and inside it, create a file named socket.ts under the services folder.

Hi I made a chat app using socket.io it worked fine locally but when i deployed the app on render.com socket is not working properly i have to refresh the page to see new messages please help...

Nextjs + socket.io.. Planning to use webrtc for video calls later

Implementação em Node usando Socket.io

I am using socket.io for real-time notification service. Previously my frontend part was deployed in Netlify and here the notification was not working properly as Netlify follows serverless architecture.

yes. Im running on DreamCompute currently. Discord.js and socket.io within same app. A dedicated server works too, but pricier.

No, not a library. More like, the frontend and backend just happen to need the same version to be compatible (socket.io is a good example, moment.js was the most basic I could think of).