Dynamically display a dashboardPage

Question

I have a functional shiny app that uses the shinydashboard package.

A new feature requires user-specific behavior (e.g. use different data sets for differen

Answer 1

It also works with invalidateLater(), but also only temporary.

library(shiny)
library(shinydashboard)

ui <- uiOutput("ui")

server <- function(input, output, session) {

  state <- reactiveValues(LoggedIn = FALSE)

  observeEvent(input$btn_login, {
    state$LoggedIn = !state$LoggedIn
  })

  ui1 <- reactive({
    fixedPage(actionButton("btn_login", "Login"))
  })

  ui2 <- reactive({
    ui2 <- dashboardPage(dashboardHeader(), dashboardSidebar(), dashboardBody(
       sliderInput("slider", "slider", min = 1, max = 10, value = 2)
     ))
    invalidateLater(100, session)
    ui2
  })

  output$ui <- renderUI({if (!state$LoggedIn) ui1() else ui2()})

}

shinyApp(ui, server)