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How to send a text message#

Installation#

npm i @green-api/whatsapp-api-client

Import#

There are several ways how to import the library to a project Using standard JavaScript

const whatsAppClient = require("@green-api/whatsapp-api-client");

Using ES6 JavaScript

import whatsAppClient from "@green-api/whatsapp-api-client";

Using TypeScript

import * as whatsAppClient from "@green-api/whatsapp-api-client";

How to initialize an object#

Store your authorization data separate from the code. The library allows you to create a file with an arbitrary name and location in the following format:

API_TOKEN_INSTANCE = "MY_API_TOKEN_INSTANCE"
ID_INSTANCE = "MY_ID_INSTANCE"

You can pass the keys using the below example:

const restAPI = whatsAppClient.restAPI(({
    credentialsPath: "examples\\credentials"
}))

Examples#

You may see the full example at: SendWhatsAppMessageAsync.js

How to send a text message to a WhatsApp number#

Use common JS

const whatsAppClient = require('@green-api/whatsapp-api-client')

const restAPI = whatsAppClient.restAPI(({
    idInstance: YOUR_ID_INSTANCE,
    apiTokenInstance: YOUR_API_TOKEN_INSTANCE
}))

restAPI.message.sendMessage("79999999999@c.us", null, "hello world")
.then((data) => {
    console.log(data);
}) ;

The full list of examples#

Description Module
Example of sending text using Async SendWhatsAppMessageAsync.js
Example of sending text using Callback SendWhatsAppMessageCallback.js
Example of sending a picture by URL SendWhatsAppFileUrl.js
Example of sending a picture by uploading from the disk SendWhatsAppFileUpload.js
Example of receiving an incoming notification with the receiveNotification method ReceiveNotifications.js
Example of receiving a webhook endpoint notification on the local machine SampleReceiveWebhook.js
Example of receiving a webhook endpoint notification on the local machine SampleReceiveWebhook.js
Example of receiving incoming notifications via webhook service REST API StartReceivingNotifications.js
Example of receiving incoming notifications to a server ReceiveWebhook.js
Example of getting a QR code via HTTP getQRCode.js
Example of getting a QR code via websocket getQRCodeWebsocket.js