Skip to main content

How to implement Twilio in Express Application

SMS/Voice Verification for a web application became mandatory nowadays.

we are using library called Twilio in node.js to make verification phone call.

How Twilio Works?

twilio

  • When an User replies to SMS which sends my our Express Application. Twilio takes the response and sends it to Express Applicaiton
  • Express Application can do some action through which a SMS/Voice Call can be send programmatically

Implementation

Firstly, To start the project, initialize npm and install twilio official package

before proceeding further. we need a Twilio account to access the sdk and twilio voice capable phone number. create an account in twilio

Meanwhile, if we don't have a phone number which has twilio voice capable. we can try with a trial phone number . voice capable phone number

we need an accountid and auth token to access the twilio API.

1npm init --yes
2npm install --save twilio dotenv

package dotenv is used to maintain the environment variable. To know more about dotenv

create a .env file in the root of the project and store the environment values

1SID="your accountid here"
2AUTH_TOKEN="your auth token here"
3FROM="your twilio phone number"
4TO="to the number to receive the call"

Finally, we can write code to access the twilio using the twilio js sdk.

Basically, it initiates the call from the twilio client which takes the from and to argument.

save the file in the root of project as app.js and run the command

1node app.js

we can do more using Twilio and node.js. please find more in the official page of twilio. Twilio docs

There are many use-cases where we need to implement the Call or Messaging Service for theApplication. For Example, Signup verification of an User by Sending the OTP through SMS.

we will learn more about Node.js in upcoming articles. Stay Tuned.

Comments

Post a Comment

Popular posts from this blog

4 Ways to Communicate Across Browser Tabs in Realtime

1. Local Storage Events You might have already used LocalStorage, which is accessible across Tabs within the same application origin. But do you know that it also supports events? You can use this feature to communicate across Browser Tabs, where other Tabs will receive the event once the storage is updated. For example, let’s say in one Tab, we execute the following JavaScript code. window.localStorage.setItem("loggedIn", "true"); The other Tabs which listen to the event will receive it, as shown below. window.addEventListener('storage', (event) => { if (event.storageArea != localStorage) return; if (event.key === 'loggedIn') { // Do something with event.newValue } }); 2. Broadcast Channel API The Broadcast Channel API allows communication between Tabs, Windows, Frames, Iframes, and  Web Workers . One Tab can create and post to a channel as follows. const channel = new BroadcastChannel('app-data'); channel.postMessage(data); And oth...
Post a Comment
Read more

Certbot SSL configuration in ubuntu

  Introduction Let’s Encrypt is a Certificate Authority (CA) that provides an easy way to obtain and install free  TLS/SSL certificates , thereby enabling encrypted HTTPS on web servers. It simplifies the process by providing a software client, Certbot, that attempts to automate most (if not all) of the required steps. Currently, the entire process of obtaining and installing a certificate is fully automated on both Apache and Nginx. In this tutorial, you will use Certbot to obtain a free SSL certificate for Apache on Ubuntu 18.04 and set up your certificate to renew automatically. This tutorial will use a separate Apache virtual host file instead of the default configuration file.  We recommend  creating new Apache virtual host files for each domain because it helps to avoid common mistakes and maintains the default files as a fallback configuration. Prerequisites To follow this tutorial, you will need: One Ubuntu 18.04 server set up by following this  initial ...
Post a Comment
Read more

Working with Node.js streams

  Introduction Streams are one of the major features that most Node.js applications rely on, especially when handling HTTP requests, reading/writing files, and making socket communications. Streams are very predictable since we can always expect data, error, and end events when using streams. This article will teach Node developers how to use streams to efficiently handle large amounts of data. This is a typical real-world challenge faced by Node developers when they have to deal with a large data source, and it may not be feasible to process this data all at once. This article will cover the following topics: Types of streams When to adopt Node.js streams Batching Composing streams in Node.js Transforming data with transform streams Piping streams Error handling Node.js streams Types of streams The following are four main types of streams in Node.js: Readable streams: The readable stream is responsible for reading data from a source file Writable streams: The writable stream is re...
Post a Comment
Read more