// ES6 or Typescript 
import * as zenvia from '@zenvia/sdk'; 
// Initialization with your API token (x-api-token) 
const client = new zenvia.Client('YOUR_API_TOKEN'); 
// Choosing the channel 
const whatsapp = client.getChannel('whatsapp'); 
// Creating a text content 
const content = new TextContent('some text message here'); 
// ES8 or Typescript. NodeJS 7.6.0 or higher 
try { 
const response = await whatsapp.sendMessage('sender-identifier', 'recipient-identifier', content); 
// do something here 
} catch (error) { 
// handle error here 
}