nested shiny modules - using uiOutput in an inner module

[dmc]

I'm running into what I think is a problem with namespaces and nested shiny modules.

The nested structure of my shiny modules is working, but for the inner module, I need it to generate a UI within the server portion of the module.

Each inner module should produce the following:
A header ("Inside the Generated UI")
some verbatimTextOutput ("something generated")
A chart

The reprex below only produces the header and not the verbatimTextOutput or the plotOutput.

This feels like a namespace problem, but I can't figure out how to fix it.

library(shiny)


inner_UI <- function(id){
  ns <- NS(id)
  tagList(
    h4("inner_UI:", id),
    uiOutput(ns("theGeneratedUI")),
    verbatimTextOutput(ns("someText"))
  )
}
innerServer <- function(id){
  moduleServer(id, function(input, output, session) {
    ns <- NS(id)
    output$someText <- renderText({
      "something"
    })
    output$someTextGenerated <- renderText({
      "something Generated"
    })
    output$theChart <- renderPlot({
      t.x <- sample(1:25, 25)
      t.y <- sample(1:25, 25)
      t.df <- data.frame(x=t.x, y=t.y)
      theOutput <- ggplot(data=t.df) +
        geom_point(aes(x=x,y=y)) + 
        ggtitle(paste0("The title:"))
      theOutput
      
    })
    output$theGeneratedUI <- renderUI({
      theOutput <- tagList(
        h5("Inside theGeneratedUI"),
        verbatimTextOutput(ns("someTextGenerated")),
        plotOutput(ns("theChart"))
      )
      theOutput
    })
  })
}
outer_UI <- function(id) {
  ns <- NS(id)
  tagList(
    fluidRow(
      column(4, inner_UI(ns("inner1"))),
      column(4, inner_UI(ns("inner2"))),
      column(4, inner_UI(ns("inner3")))
    )
  )
}

outerServer <- function(id) {
  moduleServer(id, function(input, output, session) {
    ns <- NS(id)
    innerServer("inner1")
    innerServer("inner2")
    innerServer("inner3")
  })
}


ui <- fluidPage(
  outer_UI("outer1")
)

server <- function(input, output, session) {
  outerServer("outer1")
}

shinyApp(ui, server)

[alexcray]

• Define a module server function to generate UI elements based on input.

[nirgrahamuk]

@dmc

innerServer <- function(id){
  moduleServer(id, function(input, output, session) {
    ns <- NS(id)

change this to

innerServer <- function(id){
  moduleServer(id, function(input, output, session) {
    ns <- session$ns

[dmc]

Thank you! This solves the problem!