index.js

const { EmailClient, KnownEmailSendStatus } = require("@azure/communication-email");
const { AzureKeyCredential } = require("@azure/core-auth");
require("dotenv").config();

var key = new AzureKeyCredential(process.env.KEY_CREDENTIAL);
var endpoint = process.env.AZURE_ENDPOINT;

const emailClient = new EmailClient(endpoint, key);

async function main() {
  const POLLER_WAIT_TIME = 10
  try {
    const message = {
      senderAddress: "<donotreply@dreebz.com>",
      content: {
        subject: "Welcome to Azure Communication Services Email",
        plainText: "This email message is sent from Azure Communication Services Email using the JavaScript SDK.",
      },
      recipients: {
        to: [
          {
            address: `<${process.env.SUPPORT_MAIL}>`,
            displayName: `<${process.env.SUPPORT_NAME}>`,
          },
        ],
      },
    };

    const poller = await emailClient.beginSend(message);

    if (!poller.getOperationState().isStarted) {
      throw "Poller was not started."
    }

    let timeElapsed = 0;
    while (!poller.isDone()) {
      poller.poll();
      console.log("Email send polling in progress");

      await new Promise(resolve => setTimeout(resolve, POLLER_WAIT_TIME * 1000));
      timeElapsed += 10;

      if (timeElapsed > 18 * POLLER_WAIT_TIME) {
        throw "Polling timed out.";
      }
    }

    if (poller.getResult().status === KnownEmailSendStatus.Succeeded) {
      console.log(`Successfully sent the email (operation id: ${poller.getResult().id})`);
    }
    else {
      throw poller.getResult().error;
    }
  } catch (e) {
    console.log(e);
  }
}

main();