how to use cors npm

access-control-allow-origin nodejs express

// Add headers
app.use(function (req, res, next) {

    // Website you wish to allow to connect
    res.setHeader('Access-Control-Allow-Origin', 'http://localhost:8888');

    // Request methods you wish to allow
    res.setHeader('Access-Control-Allow-Methods', 'GET, POST, OPTIONS, PUT, PATCH, DELETE');

    // Request headers you wish to allow
    res.setHeader('Access-Control-Allow-Headers', 'X-Requested-With,content-type');

    // Set to true if you need the website to include cookies in the requests sent
    // to the API (e.g. in case you use sessions)
    res.setHeader('Access-Control-Allow-Credentials', true);

    // Pass to next layer of middleware
    next();
});

Posted by: Guest on July-08-2020

Source

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') })

/* Installation $ npm install cors */ // Simple Usage (Enable All CORS Requests) 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(3000, function () { console.log("CORS-enabled web server listening on port 3000"); });

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