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  • By Pooja Srinath
    Send SMS in Your Spring Boot App spring-boot-java-websockets.png

    In this article, you’ll learn how to use WebSocket API with Spring Boot and build a simple status delivery application at the end.

    WebSocket is a communication protocol that makes it possible to establish a two-way communication channel between a server and its client. Websockets are supported by most of the browsers that are commonly used today. 

    Create an Application

    First, you need to set up your Twilio account and a suitable phone number.

    Here are the steps to generate a project using Spring Initializr: 

    1. Go to http://start.spring.io/.
    2. Enter Artifact’s value as websocket-callback.
    3. Add Websocket in the dependencies section.
    4. Click Generate Project to download the project.
    5. Extract the downloaded zip file.
    6. Note: You will need Java 8 or …
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  • By Lizzie Siegle
    Image Recognition with ImageAI and Twilio MMS in Python image-recog-imageai

    Can a computer identify what's in an image? Development libraries like ImageAI make normally-complex Machine Learning tasks including object detection easier. This blog post will show how to build an image classification application using Python, Flask, and ImageAI. The application will receive inbound images with Twilio MMS and respond with a modified image segmented into detected objects and the model's detection confidence percentages.

    MMS identifying person and dog


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  • By Michael Okoko
    Set Up PHP CodeSniffer for Local Development Set up PHP CodeSniffer for Local Development

    PHP_CodeSniffer (PHPCS) is a tool that validates your code against a set of predefined standards and ensures that such standards are maintained across the team. This tutorial will walk you through automating those validations during development by setting up PHPCS on Sublime Text, Visual Studio Code, and PHPStorm.

    Note: The accompanying sample project is available at https://github.com/idoqo/twilio-greeter. You can also download the phpcs.xml to use in your existing project.


    Completing this tutorial requires the following prerequisites:

    Installing PHP Code Sniffer

    All of the editors below require PHPCS to be pre-installed, and since we plan to use it across projects, we will install it globally with the following command:

    $ composer global require "squizlabs/php_codesniffer=*"

    You can check your installation with:

    $ phpcs

    Note: If you get an error similar to command not found, …

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  • By Phil Nash
    HTML attributes to improve your users' two factor authentication experience HTML attributes to improve your users' two factor authentication experience

    There are plenty of opportunities for friction in the user experience when logging in, particularly while entering a two factor authentication code. As developers we should be building applications that support the need for account security but don't detract from the user experience. Sometimes it can feel as though these requirements are in a battle against each other.

    In this post we will look at the humble <input> element and the HTML attributes that will help speed up our users' two factor authentication experience.

    The default experience

    When you implement two factor authentication for a web application, perhaps with the Authy two factor authentication API, you will need a form for your user to input the one time password you are going to send them. You might create something similar to the following HTML:

    <form action="/sessions/check-2fa" method="POST">
        <label for …
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  • By Laura Schaffer
    Introducing Twilio CodeExchange CodeExchange Header

    Today, we’re excited to share with you a new way to build Twilio apps using CodeExchange. It’s a searchable directory of customizable code samples, written by developers around the world, vetted by Twilio experts, and ready for you to use.

    How CodeExchange Works

    CodeExchange makes it easy to get started with any app.

    Start by heading over to the Twilio CodeExchange page, and you'll be presented with a variety of code templates that span many use cases. You can either browse the directory of existing templates or, if you already have a use case in mind, you can search for that specific use case. Once you find the use case of your choice, pick a programming language you are comfortable with from the dropdown.

    GIF showing how to search CodeExchange

    If you'd like to learn more about a particular template, click on the "Learn more" link for the use case of your choice, and you'll …

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  • By Twilio
    Important Change to the IncomingPhoneNumbers Provisioning API IncomingPhoneNumbers February API Change

    At Twilio, it’s important for us to share when there are changes to phone numbers that may affect you. This change is relevant to anyone who provisions regulated phone numbers via the IncomingPhoneNumbers provisioning API.

    On February 12, 2020, when you provision new phone numbers through the /IncomingPhoneNumbers API, you will be required to include the proper documentation for regulated phone numbers. API calls to provision phone numbers that do not include a valid BundleSID / IdentitySID will fail with error code 21649. We will send you multiple communications to prepare you for this change. If you are using Console, this will not result in a change.

    Additionally, there will be a brownout on January 15, 2020, during which the BundleSID / IdentitySID parameter will be changed from optional to mandatory for the IncomingPhoneNumbers API to ensure all of our customers are prepared for the February …

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  • By Twilio
    Speak at SIGNAL Conference 2020 Signal_Day_2-1097.jpg

    SIGNAL, Twilio’s annual customer and developer conference, is coming up May 20-21 at Moscone West in San Francisco, and our call for papers is open now through January 31, for people interested in doing a breakout session.

    SIGNAL breakout sessions show the power of communications implemented into everyday human interactions. For two days, speakers will have the chance to present to an audience of developers and business leaders who are interested in improving customer engagement.

    People attending are looking to learn how to move their skill set, business or community to the next level by using communications.

    Interested in speaking? This is what you need to know:

    We’re looking for three types of sessions:

    • Talk (~30 min) Educate the audience on your experiences, best practices and thought leadership on how to communicate and engage with your customers.
    • In-depth technical workshop (~60 min) Dig deep into developing and deploying communication …
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  • By Nikki Rubin
    Meet the Twilio Startups Team Twilio Startups Intro.jpg

    We’re excited to introduce you to our Twilio Startups team! If you’re a startup founder, you’ve probably bumped into one of us at an event, workshop or conference. Our mission is to serve startup founders all over the world through education, mentoring, and introductions. Feel free to reach out to us with questions, or apply to join the Twilio Startups Program.

     Meet the Team

    Tony Blank Headshot

    Tony Blank, Director of Twilio Startups

    Twitter: @thetonyblank


    Location: Denver, Colorado

    Tony is a noted speaker at industry events and has delivered hundreds of workshops, mentor sessions, and speaking engagements to help startups grow. Previously, Tony led the startup program at SendGrid, supporting a world-class team, helping over 5,000 startups find product/market fit and grow their first customers. Tony also draws on his technical expertise gained over the years at multiple startups, as a developer evangelist, and a software engineer. In his free time, …

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  • By Gary Hockin
    PHP 7.4 - 6 Compelling New Features Graded PHP 7.4 - 6 Compelling Features Graded

    PHP 7.4 has arrived, and it's shipped the usual raft of exciting features and improvements. For a recent live stream, we looked at all the features in the release notes and figured out what each one means in a coding sense. Let's take a look at some of the new features in PHP 7.4, and grade each one from A-F depending on how interesting they are, and my excitement to use them.

    Note: This is my personal opinion based on my own unique experiences and opinions. You'll probably disagree with some of my grades, and that's good. Your opinions and experiences are different from mine. Let me know in the comments or on Twitter where you feel I went wrong.

    Typed Properties

    We've been waiting for this feature since PHP 7.0 introduced scalar type declarations and return types, and I, for one, am very excited. We can now set …

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  • By Twilio
    Twilio Startups Founder Interview Series | TS7: Versus versus.jpg

    Welcome to the Twilio Startups 7 (TS7, for short) where we feature exciting founders from around the world to share their inspiring entrepreneurial journeys through seven quickfire questions.

    Today we would like to introduce you to Kemdi Ebi of Versus. Read on to learn more about how they built their international startup to help businesses gain actionable insights from big data. Check out their tips on hiring the right developer quickly, why finding investors is like finding a life partner, and taking calculated business risks, all while building a successful data company.


    Versus logo


    • Company Name: Versus
    • Founder Name: Kemdi Ebi
    • LinkedIn
    • Twitter
    • Industry: Software/Big Data & Analytics/Market Research
    • Stage/Funding: Seed
    • Location: Lagos, Nigeria, London, UK & Washington DC, USA

    From the founder of Versus

    We reached out to Versus to get insight into how they launched an international startup and what they’ve learned along the way.

    Describe your company in …

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