Shiny is an R package from RStudio that makes
it incredibly easy to build interactive web applications with R using a reactive
programming model. The complexity of the reactive elements within a shiny application
can quickly become complicated and difficult to keep an overview of the sources
and endpoints of your elements.
reactflush parses your code, analyses the sources and endpoints for each element
and provides a visual overview of how all the reactive elements interact wiht one
another.
This package aims to be a complementary tool for reactlog
which provides a visual debugger for shiny reactivity. The key difference is that
reactflush gives you an overview of your complete app based on your code instead
of logging the reactive activity while using the app. This ensures a complete overview
of all reactive elements in your app. This will help in identifying which elements
are reactive bottlenecks or how changing one element will affect other reactive elements.
- visualise the reactivity network of your shiny app
- focus one reactivity network around one single element in your app
- capable of identifying and processing source statements within your code
- identify all common elements:
input,reactive,reactiveValues,reactiveVal,eventReactive,callModule,observe,observeEvent,render*
# install.packages("devtools")
devtools::install_github("basf/reactflush")# select directory of shiny app
dir <- fs::path(system.file("examples", package="shiny"), "07_widgets")
# create reactflush overview
reactflush(dir)
# select directory of shiny app
dir <- fs::path(system.file("examples", package="shiny"), "07_widgets")
# select element to focus on
element <- "output$view"
# create reactflush overview
reactflush(dir, focus = element)
