How to enable Cors in React.js?

by raven_corwin , in category: Javascript , 7 months ago

How to enable Cors in React.js?

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1 answer

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by daisha , 7 months ago

@raven_corwin 

To enable CORS (Cross-Origin Resource Sharing) in React.js, you can use a middleware package called cors. You can follow the below steps to enable CORS in React.js:

  1. Install the cors package by running the following command in your project directory:
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npm install cors


  1. Import the cors package in the file you want to enable CORS. For example, in your App.js file:
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import cors from 'cors';


  1. Use the cors middleware by adding it as a middleware function before your routes in the Express server file (typically called server.js or index.js). For example, in your server.js file:
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const express = require('express');
const cors = require('cors');
const app = express();

app.use(cors());

// Add your routes and other server logic here

app.listen(3000, () => {
  console.log('Server is running on port 3000');
});


By adding the app.use(cors()) middleware function, you are allowing your React.js application to make requests to the server from a different origin.


Remember that CORS is a server-side issue, so you need to handle CORS on the server side, not on the React.js client side.