WhatsApp is a great piece of software that allows you to do instant messaging as well as calls for free using your phones data connection or WiFi. Go to “Inspect Element” -> “Network” as shown in the below image.How to solve the problem of not being able to scan the QR code in Whatsapp web

In Google chrome, you can see websocket communication. Step 7) Browser get the Facebook user information using recevied FB access token. Step 6) Node.js Server sends access token to the respective browser using Websockets. Step 5) After scanning, App sends Unique ID (from QR), access token (from FB) to Node.js server. Step 4) After the successful authentication, user scans the QR code. Step 3) User login to the mobile app using Facebook authentication. Then browser generates a QR code using unique identifier and shows to user. Step 2) Node.js server generates a unique identifier and sends to browser using Websocket.

Step 1) Browser sends hello message to Node.js server using Websocket. You need a QR code reader at device side.įor iPhone -> You can use AVFoundation frameowrkīelow diagram explains how the POC works. I selected Node.js + ws package + http package.įor the demo, I used Openshift Node.js serverĤ).

You need a Webserver supporting Web sockets. You need to know basics of WebSockets (JavaScript)Ģ). Now I am going to show how to implement Web WhatsApp like authentication.

Whatsapp web qr code