Node.js WhatsApp Library#

JavaScript library for integration with WhatsApp messenger via API of green-api.com service. To use the library you have to get a registration token and an instance id in the console. There is a free developer instance plan.

API#

You can find REST API documentation by url. The library is a wrapper for REST API, so the documentation at the above url applies to the library as well.

Authorization#

To send a message or to execute some other Green-API method, you have to have the WhatsApp account in the phone application to be authorized. To authorize your instance please go to the console and scan a QR-code using the WhatsApp application.

Development environment unrolling#

1. Clone the repository via git clone
2. Install dependencies via npm install
3. Globally install the rollup library for building.
4. For webhooks add express as a new dependency via npm
5. Create a .env file in the root directory and set the environment variables. The example of variables are in the env.example file

Building#

You can compile both browser and node/webpack versions of the library with one command

npm run build

Examples of using#

• How to send a text message

• How to send a file by url

• How to send a file by uploading from the disk

• How to receive and process a notification

• How to receive and process notifications using a server

• How to receive webhook endpoint notifications on local machine

• How to get a QR code

Service methods documentation#

• Service methods documentation

External products#

• axios - for http requests
• express - webhook applications server

License#

Licensed under Creative Commons Attribution-NoDerivatives 4.0 International (CC BY-ND 4.0).

Please see file LICENSE.