How to Launch Video Meetings in Slack with the TokBox App

A version of this article originally appeared on the blog publication “In Context,” by Nexmo, The Vonage API Platform. The OpenTok Live Video API is now part of Nexmo.


Slack is a popular workplace collaboration tool that has an estimated 10+ million daily active users. With so many people using Slack, including those within our own developer community, bringing our customizable live video experience with the TokBox-Slack integration app was a natural progression. Elevating the developer experience is at the forefront of everything we do, from our developer center to our Live Video API, the OpenTok platform.

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Insights, now with GraphQL

A few months back, TokBox announced our Insights Dashboard, a view in the Account Portal for customers to better understand their applications’ video data. At the same time, we opened up an API (in private beta) to programmatically access this data in RESTful fashion along with summaries of individual sessions.

Today we’re pushing a new way to access this data as a public beta using GraphQL. GraphQL is a powerful alternative to the typical REST approach of accessing data over HTTP. It was developed by Facebook in 2012, and open sourced in 2015.

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OpenTok version 2.15: What’s new and how you can use it

Last week, we released OpenTok v2.15, the latest version of our Client SDKs. We wanted to update you on some of the great new features included and how you can use them.

Audio Enhancements in Web and Windows SDKs

In opentok.js 2.14 we added the ability to switch cameras using the Publisher cycleVideo() method which was really well received. Version 2.15.0 of opentok.js and our Windows SDK add the ability to switch to a different audio source. In opentok.js you do with using the Publisher setAudioSource() method and in Windows you use the AudioDevice.SetInputAudioDevice method. The obvious use-case for this API is to allow your users to switch microphones without needing to create a whole new publisher. But it can also be used to switch to other supported audio sources, for example loading audio from an audio file, or creating custom audio. In opentok.js you do this using the setAudioSource() method and passing a custom audioTrack. In the Windows SDK you do this using the AudioDevice.setCustomAudioDevice method and passing a custom audio driver.

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OpenTok Server SDKs – What’s new?

OpenTok Server SDKs

 In an effort to make our APIs more accessible and easy to use, we’ve spent some time improving all six of our server SDKs. The OpenTok Server SDKs provide a convenient way to to interact with the OpenTok REST API in a variety of languages. Please note that these enhancements will not break your implementation should you choose to upgrade.

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Integrating WebRTC with PSTN using OpenTok & Nexmo SIP

Integrating WebRTC with PSTN using OpenTok & Nexmo SIP

In this blog we look at how to connect OpenTok Live Video sessions with traditional PSTN phone calls. We will demonstrate how to connect an OpenTok session to PSTN with an audio stream that connects through OpenTok SIP Interconnect to a Nexmo SIP-PSTN Gateway.

OpenTok SIP Interconnect is a general purpose SIP capability that can be used to connect to many different kinds of gateway or other SIP systems. TokBox is now part of Vonage, so in this blog we will use our own Nexmo programmable communications APIs to bridge the call.

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How To Get the Most out of the New Account Dashboard

In April, we announced updates to our pricing and packaging, which allows TokBox customers to have more flexibility with the ability to add-on features a la carte to their accounts. With this in mind, we’ve been hard at work over the past couple of months to make our entire user experience more flexible and allow users to have more control in configuring their OpenTok projects.

Today, we’re excited to announce that we’ve made several improvements to the Account Dashboard, which provides users with more self-service functionality. These updates will make it faster for users to configure their OpenTok projects and make quick changes, and to gather critical information on the add-ons they have access to.

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Enter the TokBox Live Video and AR Online Hackathon Now!

HackTokBox - Virtual AR Hackathon

[UPDATED July 31]  We’d like to welcome all WebRTC and TokBox API developers, wherever you are in the world, to our TokBox Live Video and AR Online Hackathon! How would you like the chance of winning a $600 prize for each of two top teams – plus OpenTok Developer credits and two second place prizes bringing total prize value to $2520. It’s up for grabs for the teams which create the best OpenTok Live Video apps of any kind, with a special prize for combining Augmented Reality and Live Video. Read on to find out how to get involved.  Your app will be developed in your own time during August/September 2018 in teams of 1 to 3 people – with your app submitted online at DevPost by September 18th.

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Update to Chrome Screen Sharing

[UPDATED September 6] As you may know, Google recently announced the deprecation of inline installation of Chrome extensions in an effort to improve transparency and security. For end-users, this means that the process for installing screen sharing extensions will change from inline installation to installation from the Chrome Web Store. Below, you’ll find information on the deprecation timeline provided by the Chromium team:

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Speed Up OpenTok Session Debugging with Inspector

OpenTok Session Debugging with the Inspector tool

Diving into data on OpenTok sessions can provide developers with the tools they need to understand bugs and make improvements quickly. That’s why we built Inspector – a tool to help developers understand what happened in specific OpenTok sessions. Users can either enter a session ID or use the Session Dashboard to access the information. This includes user data, errors, video and audio quality and events about a session.

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Build an AR App with the Frame Metadata API

AR App using Framemeta Data API from OpenTok

If you had to choose one memorable thing about the upcoming iOS 12 when it was unveiled at WWDC’18, it would probably be the inclusion of ARKit 2.0, Apple’s Augmented Reality toolkit for iOS. I bet you still remember that cool demo by the Lego guys playing on the stage.

In fact, ARKit is probably the component which is going to grow the most in the new version of iOS, with many new features, improvements and even a new app to easily perform real-world measurements.

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