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  • By Mia Adjei
    Add a Volume Slider to Your Livestream App Add a Volume Slider to Your Livestream App

    If you've had a chance to try out my previous video livestreaming tutorial, you might already know how to build your own Twilio Live video streaming application with experiences for both the streamer and the audience.

    In the starter project, however, the audience members do not yet have a way to control the volume of the livestream they are listening to from the UI of your application. This quick tutorial will build on the previous one, showing you how to add a volume slider to the audience side of your application.

    Let's get started!

    Prerequisites

    • A free Twilio account. (If you register here, you'll receive $10 in Twilio credit when you upgrade to a paid account!)
    • Node.js v14+ and npm installed on your machine.
    • ngrok
    • The code from the previous tutorial. Clone the repository here and follow the steps in README.md to get set up.

    Add an input …

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  • By Mia Adjei
    Build an Audio Livestream App with Twilio Live Build an Audio Livestream App with Twilio Live

    The amount of online audio content and livestreams is increasing every day. More and more, people are tuning into audio for news, music, fitness, study, and entertainment. So if you have been thinking about creating something in the audio space, maybe you have considered building your own live audio application.

    Perhaps you've already explored Twilio Live to livestream your video feed or create a live screen share. But did you know you can use Twilio Live to create an audio-only experience as well?

    In this tutorial, you will learn how to build an audio livestream application with Twilio Live and React, and then deploy it using Twilio Functions and the Twilio Serverless Toolkit. This will allow you to start sharing your live audio with your friends and community right away. In this project, you'll also use the Twilio Paste design system to quickly build and style your …

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  • By Mia Adjei
    Build a Livestreaming Application with Twilio Live and Express Build a Livestreaming Application with Twilio Live and Express

    Twilio Live is finally here! If you have ever wanted to build your own livestreaming application, now is your chance.

    In this tutorial, you will learn how to build a livestreaming application and share your live video feed with your friends, followers, and maybe even the world. For this project, you'll be using Node.js and Express to build the server side of the application, and vanilla JavaScript on the client side.

    Let's get started!

    Prerequisites

    • A free Twilio account. (If you register here, you'll receive $10 in Twilio credit when you upgrade to a paid account!)
    • Node.js v14+ and npm installed on your machine.
    • ngrok

    What you will build

    In this tutorial, you will be creating an application that allows a person to livestream video and audio from their device to people who have the link to the stream. The Express server you'll build will handle both the streamer …

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  • By Mia Adjei
    Share a File over a WebRTC Data Channel with Twilio Video Share a File over a WebRTC Data Channel with Twilio Video

    When you're taking part in a video conversation, sometimes you have files you want to share with the other people on the call so that everyone can take a look. This is a great way to collaborate with your friends or colleagues when you're not in the same room or looking at the same screen.

    In this tutorial, you'll build a video application with JavaScript and learn how to use the Twilio Video DataTrack API to share a file over WebRTC with the other participants on the call.

    Follow along below step by step, or if you're interested in skipping ahead to take a look at the code, visit the project repository on GitHub here.

    Let's get started!

    Prerequisites

    • A free Twilio account. (If you register here, you'll receive $10 in Twilio credit when you upgrade to a paid account!)
    • Node.js v14+ and npm installed on your machine. …
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  • By Mia Adjei
    Build a Free 1:1 Video Chat Application with Twilio WebRTC Go and Ruby Build a Free 1:1 Video Chat Application with Twilio WebRTC Go and Ruby

    Have you ever wished you could build a video chat application to talk to a friend, family member, or colleague one-on-one? With Twilio WebRTC Go, you can build your own video application where two participants can video chat for free.

    In this tutorial, you will learn how to build a 1:1 video chat application with Ruby and JavaScript, and set it up to run on ngrok so you can chat with a friend. The application will consist of two parts: a vanilla JavaScript client-side application that will allow you to connect to a video room, and a Ruby/Sinatra server that will grant Access Tokens for the participants in the video chat.

    If you would like to skip ahead and take a look at the code, check out the project repository on GitHub here.

    Let's get started!

    Prerequisites

    • A free Twilio account. (If you register here, you'll receive …
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  • By Mia Adjei
    Launch Emoji Reaction Confetti in Your Twilio Video Chat with JavaScript Launch Emoji Reaction Confetti in Your Twilio Video Chat with JavaScript

    Have you ever used social media apps where you can react to someone's video by launching emoji reaction confetti? Sometimes you don't necessarily have a comment you want to share, but you do want to respond with a smile, a thumbs up, or a heart to show how you feel about what your friend is saying.

    In this tutorial, you'll build a video application where participants can react to each other by launching emoji confetti. Participants will be able to see the emoji reactions that other people on the call are sharing, as well as share their own emoji reaction. This application will use the Twilio Video DataTrack API to share which emoji a participant has selected.

    Let's get started!

    Video chat between two yellow rubber ducks. Emoji confetti fly across part of the UI.

    Prerequisites

    • A free Twilio account. (If you register here, you'll receive $10 in Twilio credit when you upgrade to a paid account!)
    • Node.js v14+ and npm installed on your …
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  • By Mia Adjei
    Invite Collaborators to a Twilio Video Chat Using the Google Calendar API and JavaScript Invite Collaborators to a Twilio Video Chat Using the Google Calendar API and JavaScript

    Have you ever attended an online video meeting that you were able to join via a link inside a calendar invitation? With the increase in people working and socializing from home, these kinds of calendar invitations have gotten a lot more popular in the last year.

    In this tutorial, you will learn how to build an application that allows you to create Google Calendar events programmatically, with a link to a deployed Twilio Video app in their description. This will allow users to click the link and join the video call easily. You will get a chance to learn about the Google Calendar API, as well as build a JavaScript application with React and Express.

    First, you'll get set up creating a new Google Cloud project. Then, you'll create a React + Express application to interact with the Google Calendar API. Finally, you'll deploy your Twilio Video application and …

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  • By Mia Adjei
    How to Set a Default Room Name in the Twilio Video React App How to Set a Default Room Name in the Twilio Video React App

    If you have worked with the open-source Twilio Video React App, you have likely seen the start screen displayed below:

    Twilio Video React App initial screen, with inputs for a user's name and a video room's name.

    By default, this screen shows you two inputs: one for your name and one for the name of the video room you would like to join.

    If you are building with this open-source video app, maybe you have wondered how you can prepopulate a video room name so that video room participants don't have to type it in.

    In this tutorial, you will learn some quick ways you can change the default name of the video room in this application, as well as examine some of how this application uses React Hooks.

    Prerequisites

    • A free Twilio account. (If you register here, you'll receive $10 in Twilio credit when you upgrade to a paid account!)
    • Node.js v12+ and npm installed on your machine.

    Setup

    To get started, clone …

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  • By Mia Adjei
    ExpressとTypeScript APIにCORSサポートを追加する方法 add cors support to Express + TypeScirpt JP Header

    このBlogはTwilio Developer Voicesチームに所属するMia Adjeiが執筆したこちらの記事を日本語化したものです。

    Node.js、Express、TypeScriptを使用してすばらしいAPIを構築したと想像してください。クライアントサイドのWebアプリも完成。ブラウザでアプリケーションを起動しサーバーに接続できる段階まできました。もうすぐ世界中に公開できそうです。

    ブラウザでアプリが動作している場所を開き、開発者ツール内のコンソールを開きます。アプリがサーバーに対し最初のAPIコールを実行します。しかし、アプリにデータは反映されず、コンソールにはこのようなエラーが表示されました。

    Access to fetch at 'http://localhost:5000/rooms' from origin 'http://localhost:3000' 
    has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present 
    on the requested resource. If an opaque response serves your needs, set the 
    request's mode to 'no-cors' to fetch the resource with CORS disabled.
    

    なんと、オリジン間リソース共有(CORS: Cross-Origin Resource Shar …

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  • By Mia Adjei
    Build a Free 1:1 Video Chat Application with Twilio WebRTC Go and JavaScript Build a Free 1:1 Video Chat Application with Twilio WebRTC Go and JavaScript

    Have you ever wished you could build your own video chat application to talk to a friend, family member, or colleague one-on-one?

    There are so many projects you could build or enhance with video — a video chat for friends, a telemedicine application, a virtual real estate tour, a tutoring app, a dating application, and many more. When you're getting started building a new project, it's great to have a way to build for free and explore your ideas.

    With Twilio WebRTC Go, you can build your own 1:1 video application where participants can video chat for free. You can build your own WebRTC-enabled video app without needing to be concerned with some of the challenges of building directly on WebRTC.

    In this tutorial, you will learn how to build a 1:1 video chat application with JavaScript and set it up to run on ngrok so you can chat with …

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