Connecting a phone number to the GREEN API service#

You can connect your WhatsApp phone number to the API instance in your integration in two ways.

Connect via QR code#

1. Get a QR code via websocket.

   • Create a file in HTML format;
   • Add the code from the example;

     The connection is set up by JavaScript code.

   • Create local page hosting;
   • Put apiUrl, idInstance and apiTokenInstance in the fields.

     You can find out where to find apiUrl, idInstance and apiTokenInstance in article;

   • Click on the Get QR button. The QR code will appear on the screen.

   When receiving a QR code via websocket, the Get QR button can be clicked several times and you will always be returned an up-to-date image of the QR code.

2. Through the browser.

   • You can get the QR code directly through your browser's search bar.

   https://qr.green-api.com/waInstance1101******/0654934b277d4ef693b01ab073d9cd2e97f02db9a53******
   

3. Through QR method.
   Code example.

   • Add apiUrl, idInstance and apiTokenInstance from console;
   • The message field will return a base64 encoded QR code string;
   • To see an image with a QR code, put data:image/png;base64, {message} in the browser search bar.

Bind by phone number#

Code example.

{{apiUrl}}/waInstance{{idInstance}}/getAuthorizationCode/{{apiTokenInstance}}

• Send a POST request using the getAutoriationCode method.
• Customize the body of the request - enter the phone number in international format in the phoneNumber field.

  Do not use plus signs, zeros, parentheses, or dashes when entering the phone number in international format. For example: 0100123456789@c.us.

• The code field in the body of the reply will show the eight-digit code to be entered in the WhatsApp app.