NodeJS

Welcome to the ReSMS NodeJS integration guide.

This guide explains how you can quickly and securely send SMS messages using the ReSMS API in your NodeJS applications.

Installation

First, install our official ReSMS NodeJS SDK:


npm install resms-sdk
# or
yarn add resms-sdk
# or
bun add resms-sdk

Quickstart

Here’s a minimal example to send an SMS:


import { ReSMSClient } from 'resms-sdk';
 
const client = new ReSMSClient({
  apiKey: process.env.RESMS_API_KEY,
});
 
async function sendSMS() {
  const response = await client.sendSMS({
    to: '+1234567890',
    message: 'Welcome to ReSMS!',
  });
  console.log('SMS sent:', response);
}
 
sendSMS().catch(console.error);

Authentication

Your API Key must be kept secret. Set it as an environment variable:


RESMS_API_KEY=your-api-key-here

Never hardcode it in your source files.

Features

Send transactional and promotional SMS
High deliverability and reliability
Real-time message status tracking
Global number support

Error Handling

All API calls can throw errors. We recommend wrapping your SMS calls with try-catch:


try {
  await client.sendSMS({...});
} catch (error) {
  console.error('Failed to send SMS:', error);
}

Going Further

Need help? Contact our support at support@resms.io