How to refer to reactive element in ui.R in Shiny

Question

I am making an app with drag and drop feature using the ShinyDND package. I would like to pass a list from input as a parameter of dragSetUI, a function that needs to be run in

Answer 1

Comment by @ismirsehregal helped me find the solution: shinyjqui can be used for my purposes and it seems to work from inside renderUI. Here is the edited code that does exactly what I needed.

library(shiny)
library(shinyjqui)


ui <- fluidPage(
  textInput("choices","Put here a,b,c:"),
  uiOutput("reactiveselect"),
  orderInput(inputId = 'drop', label = 'Reactive drop', items = NULL,placeholder = "drop here..."),
  verbatimTextOutput("droppedorder")
)


server <- function(input, output) {



  output$reactiveselect <- renderUI({
    req(input$choices)
    reactiveitems<- unlist(strsplit(input$choices,","))
    orderInput("groupstochoose", "groups to choose from:", connect='drop',items=reactiveitems)

  })

  output$droppedorder<-
    renderPrint({input$drop_order})

}



shinyApp(ui, server)