Shiny Apps from Concept to Production – An RStudio Community X-Session with Appsilon

Shepherding your Shiny App from Proof of Concept to Production

Improve Your Code – Best Practices for Durable Code

Anna Skrzydło discusses code maintenance, and the strategies you can employ to create enduring code. Avoid future delays and growing pains for your Shiny app by using better coding practices.

Shiny applications often start as small projects and grow as they get noticed. This is when the problems usually begin, as it quickly turns out that implementing one small change takes two days, and adding a new requirement leads to rebuilding the whole application. Assuming, of course, that further development is done by the same team, any new developer joining the team first needs a one-month onboarding…

If that sounds familiar, join the session, to learn more about:

1. modules (Shiny modules, wahani/modules, R6 classes)
2. tests (unit tests, but also other types of tests)
3. strategies (code structure, automation)
   to make your code easier to develop and maintain.

Each of the three topics will be divided into two parts so that everyone can find something useful:

• Quick start – dedicated for those for whom the topic is completely new. It aims at giving you the basic concept so that you can begin using it immediately.
  
• Further steps – dedicated for those who are already familiar with the concept and use it frequently. It aims at giving you advanced steps to get even more out of your coding practices.

Scaling & Infrastructure – Why is My Shiny App Slow?

Pedro Silva will explore scaling and infrastructure issues common when deploying large scale Shiny apps, and how to overcome them.

For a Data Scientist, Shiny can be an amazing tool when it comes to creating fast and powerful prototypes and dashboards. But what to do when your application becomes TOO popular and more and more people want to use it?

As the number of users grows, keeping up with the demand of a Shiny application can be tricky, and there is only so much you can do to improve performance at the code level.

In this presentation I will be giving an overview of our approach to improving Shiny dashboards performance on an infrastructure level, as well as tips to scaling Shiny dashboards to hundreds of concurrent users while keeping your budget under control.

UI/UX in Shiny Apps and Live Coding Session (shiny.fluent and shiny.react)

Kamil Żyła will demonstrate how to use shiny.fluent to build beautiful Shiny apps with Microsoft’s Fluent UI, and explain how to integrate React and Shiny.

In this talk we will present the functionality and ideas behind a new open source package we have developed called shiny.fluent.

UI plays a huge role in the success of Shiny projects. shiny.fluent enables you to build Shiny apps in a novel way using Microsoft’s Fluent UI as the UI foundation. It gives your app a beautiful, professional look and a rich set of components while retaining the speed of development that Shiny is famous for.

Fluent UI is based on the Javascript library React, so it’s a challenging task to make it work with Shiny. We have put the parts responsible for making this possible in a separate package called shiny.react, which enables you to port other React-based components and UI libraries so that they work in Shiny.

During the talk, we will demonstrate how to use shiny.fluent to build your own Shiny apps, and explain how we solved the main challenges in integrating React and Shiny.