In episode 24 of the Shiny Developer Series, we kick off a series of episodes that spotlight amazing Shiny applications submitted in the 2021 RStudio Shiny Contest! David Barkemeyer joins Eric to uncover the technical achievements and design philosophy of his myPaintings application, complete with many innovative capabilities that greatly enhance the user experience and backend infrastructure. Throughout the episode, you will hear David's perspectives on effective techniques to manage application state, integration of custom javascript, and much more!
Resources mentioned in the episode

• David on GitHub: https://github.com/DavidBarke
• myPaintings - Painting Trading Platform
• Shiny app: https://mypaintings.davidbarke.com
• GitHub Repo: https://github.com/DavidBarke/mypaintings
• {shinyjs}
• {bs4Dash}

Episode Timestamps
00:00:00 Episode Introduction

00:03:24 How David got started with R & Shiny

00:05:40 Introduction to myPaintings

00:24:15 Infinite scroll feature

00:30:22 Design UI & UX of myPaintings

00:34:15 User management & helper functions

00:46:51 Overall app & file organization

00:49:28 Using .values to store & update user state and environment

00:53:40 R6 classes as another option

01:00:20 Recap and conclusion