Tutorials

Get started with Nexmo with tutorials that will walk you through building a variety of practical applications

Number Insight

Fraud Scoring and Phone Number Verification

You can use the Number Insight Advanced and Verify APIs together to build your own fraud detection system. With this approach, you can protect your organisation against fraudulent transactions while making the process frictionless for most customers.

● Node

Verify

Passwordless authentication

Use the Verify API to log a user into an application with just their phone number instead of a password.

● Node

SMS

Two-way SMS for customer engagement

Programmable SMS is not just useful for one way notifications. When you combine outbound notifications with inbound messages you create chat-like interactions between your company and your customers.

● Ruby

Voice

Private voice communication

Protect user's number privacy by connecting users together for private voice communication.

● Node

SMS

Show SMS Notifications in the Browser with Angular, Node.JS, and Ably

Use Node.js and Express to receive an SMS, send it via Ably to a web browser, and then use Angular to display it as a notification in a Single Page Application.

● Node

Messages

Sending WhatsApp messages with the Messages API

The Messages API provides a unified facility for sending messages over multiple channel types. This tutorial looks at sending messages via the WhatsApp channel using the Messages API.

● Curl ● Node

Voice

Broadcast Voice-based Critical Alerts

In this tutorial, you will learn how to contact a list of people by phone, convey a message, and see who confirmed that they had received the message. These voice-based critical alerts are more persistent than a text message, making your message more likely to be noticed. Additionally, with the recipient confirmation, you can be sure that your message made it through.

● PHP

SMS

Mobile app invites

Link your customers to your app with SMS

● Ruby

SMS

Receiving SMS Delivery Receipts with PHP

Get notifications when your SMS is actually delivered to the handset of the user. This tutorial uses Slim framework to log the delivery receipts of your sent messages.

● PHP

SMS

Anything-to-SMS with IFTTT and Nexmo

Send an SMS in response to any trigger by creating a serverless action in PHP that sends an SMS. Use IFTTT to send a webhook to the serverless action when your chosen event occurs

● PHP

SMS

Serverless SMS Fortune Cookies with Nexmo and IBM

Receive SMS from a user, and respond using a serverless function. This example uses IBM Cloud Functions to receive the webhook notification of the incoming SMS request, and respond by sending an SMS (containing a fortune cookie as a very simple example) back to the user. An ideal model for low-traffic use cases where users need up-to-date information by SMS.

● PHP

Messages

Sending Viber Service messages with the Messages API

The Messages API provides a unified facility for sending messages over multiple channel types. This tutorial looks at sending messages via the Viber Service channel using the Messages API.

● Curl ● Node

SMS

How to Send SMS Messages with Ruby on Rails

Detailed tutorial on how you can send SMS from your Ruby on Rails application using the Nexmo SMS API

● Ruby

SMS

Receive SMS Messages with ASP.NET MVC Framework

A tutorial to show how your ASP .NET MVC application can use the Nexmo c# library to receive SMS messages from your users and display them in your output window.

● dotnet

Number Insight

Validate a number

Use the Number Insight and Developer API from Ruby code to validate, sanitize and determine the cost to call or message a number.

● Ruby

Voice

Add a Call whisper to an inbound call

Phone numbers are everywhere in advertising: on billboards, in TV ads, on websites, in newspapers. Often these numbers all redirect to the same call center, where an agent needs to inquire why the person is calling, and where they saw the advert. Call Whispers make this so much simpler.

● Node

Voice

Interactive Voice Response

Build an automated phone system for users to input information with the keypad and hear a spoken response

● PHP

Messages

Sending Facebook Messenger messages with the Messages API

The Messages API provides a unified facility for sending messages over multiple channel types. This tutorial looks at sending messages via the Facebook Messenger channel using the Messages API.

● Curl ● Node

Voice

Call tracking

Keep track of which campaigns are working well by using different numbers for each one and tracking the incoming calls. This tutorial shows you how to handle incoming calls, connect them to another number, and track the phone numbers that called each of your Nexmo numbers.

● Node

SMS

How to Receive SMS Messages with Ruby on Rails

Handle incoming SMS from users in your Ruby on Rails application.

● Ruby

SMS

How to Send SMS Messages with Java

Learn how to add the ability to send SMS messages from your Java application. This tutorial also shows how you can create a web service and use that to send the SMS messages.

● Java

SMS

How to Get an SMS Delivery Receipt in ASP .NET MVC

Delivery receipts allow you to get information about when an SMS is delivered to a user's handset. This tutorial shows how you can recieve these delivery receipt notifications in your ASP .NET application.

● dotnet

SMS

Private SMS communication

All mobile phones can send and receive SMS messages, and nearly everybody has a phone. This makes SMS a great choice to communicate with your users from your application.

● Node

Voice

Local Numbers

Replace your toll-free numbers (e.g. 800, 0800) with local geographical numbers that allow you to provide a better customer service. Users can make cheaper calls and you can offer location-sensitive information when they contact you.

● Ruby

SMS

Receive SMS Messages with Java

This tutorial walks you through creating a servlet to receive incoming SMS messages from your users. You'll learn how to configure your Nexmo number and account, set up the servlet, and have the incoming messages logged to the console.

● Java

SMS

Receiving Concatenated SMS

If an inbound SMS exceeds the maximum length allowed for a single SMS, it is split into parts. It is then up to you to reassemble those parts to show the full message. This tutorial shows you how.

● Node

Verify

Two-factor authentication for security and spam prevention

Increase your application security

● Ruby

Dispatch

Sending a Facebook message with failover

The Dispatch API provides the ability to create message workflows with failover to secondary channels. This tutorial looks at using the Dispatch API to send a Facebook message with failover to the SMS channel.

● Curl ● Node

SMS

How to Send SMS Messages with Python, Flask and Nexmo

This tutorial introduces you to sending SMS with Python, making use of the Nexmo Python library. It starts by showing how to send SMS from the REPL, then goes on to show you how to build a simple flask app with SMS capabilities.

● Python

Number Insight

Number Insight Advanced API Async

Learn how to access comprehensive information about the validity and reachability of a number asynchronously.

● Node

SMS

Receive an SMS Delivery Receipt from a Mobile Carrier with Ruby on Rails

By enabling delivery receipts on the SMS messages that you send, you can get a notification when the message is successfully delivered. This tutorial show you how you can implement this in your Rails application.

● Ruby

SMS

Receiving an SMS with PHP

Walk through of how to receive an SMS in your PHP project

● PHP

Audit

Retrieve audit events

You can retrieve filtered lists of audit events. Audit events log activity in a Nexmo account.

● Curl

SMS

SMS Customer Support

Programmable SMS is not just useful for one way notifications. When you combine outbound notifications with inbound messages you create chat-like interactions between your company and your customers.

● Ruby

SMS

Sending SMS Messages with PHP

This short but detailed tutorial shows you how you can send SMS messages from your PHP application.

● PHP

Conversation

Retrieve Conversation details for an in-progress voice call

Retrieve details of a Conversation object for an in-progress voice call

● Curl ● Python

Messages

Sending SMS messages with the Messages API

The Messages API provides a unified facility for sending messages over multiple channel types. This tutorial looks at sending messages over the SMS channel using the Messages API.

● Curl ● Node

SMS

How to Send SMS Messages with ASP.NET MVC Framework

Enhance your .NET application by adding the ability to send SMS messages to users. This tutorial walks you through adding a simple form to your web application, and sending an SMS message to the number provided.

● dotnet