store_null: No storage on disk

In shinylogs: Record Everything that Happens in a 'Shiny' Application

No storage on disk

Description

Doesn't write anything, special inputs created by track_usage() are available in server and optionally logs are printed in console.

Usage

store_null(console = TRUE)

Arguments

console

Print logs in R console.

Value

A list that can be used in track_usage().

Examples

library(shiny)
library(shinylogs)

ui <- fluidPage(
  tags$h2("Record inputs change"),
  fluidRow(
    column(
      width = 3,
      selectInput(
        inputId = "select",
        label = "Select input",
        choices = month.name
      ),
      numericInput(
        inputId = "numeric",
        label = "Numerci input",
        value = 4,
        min = 0, max = 20
      ),
      checkboxGroupInput(
        inputId = "checkboxGroup",
        label = "Checkbox group input",
        choices = LETTERS[1:5]
      ),
      sliderInput(
        inputId = "slider",
        label = "Slider input",
        min = 0, max = 100, value = 50
      )
    ),
    column(
      width = 9,
      tags$b("Last input:"),
      verbatimTextOutput(outputId = "last_input"),
      tags$b("All inputs:"),
      verbatimTextOutput(outputId = "all_inputs")
    )
  )
)

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

  track_usage(
    storage_mode = store_null() # dont store on disk
  )

  output$last_input <- renderPrint({
    input$.shinylogs_lastInput # last input triggered
  })

  output$all_inputs <- renderPrint({
    input$.shinylogs_input # all inputs that have changed
  })

}


if (interactive())
  shinyApp(ui, server)

shinylogs documentation built on April 18, 2022, 5:05 p.m.