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npm cors api use

npm install cors
var cors = require("cors");

CORS is a node.js package for providing a Connect/Express middleware that can be used to enable CORS with various options.
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cors in node js

// Wide listing a cors to accept a specific domain route
const cors = require('cors');

const corsOption = {
    origin: ['http://localhost:3000'],
};
app.use(cors(corsOption));
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cors package install npm

var express = require('express')var cors = require('cors')var app = express() app.get('/products/:id', cors(), function (req, res, next) {  res.json({msg: 'This is CORS-enabled for a Single Route'})}) app.listen(80, function () {  console.log('CORS-enabled web server listening on port 80')})
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cors package install npm

var express = require('express')var cors = require('cors')var app = express() app.use(cors()) app.get('/products/:id', function (req, res, next) {  res.json({msg: 'This is CORS-enabled for all origins!'})}) app.listen(80, function () {  console.log('CORS-enabled web server listening on port 80')})
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