log_shiny_input_changes: Auto logging input changes in Shiny app

In logger: A Lightweight, Modern and Flexible Logging Utility

Auto logging input changes in Shiny app

Description

This is to be called in the server section of the Shiny app.

Usage

log_shiny_input_changes(
  input,
  level = INFO,
  namespace = NA_character_,
  excluded_inputs = character()
)

Arguments

input	passed from Shiny's server
level	log level
namespace	the name of the namespace
excluded_inputs	character vector of input names to exclude from logging

Examples

## Not run: 
library(shiny)

ui <- bootstrapPage(
  numericInput("mean", "mean", 0),
  numericInput("sd", "sd", 1),
  textInput("title", "title", "title"),
  textInput("foo", "This is not used at all, still gets logged", "foo"),
  passwordInput("password", "Password not to be logged", "secret"),
  plotOutput("plot")
)

server <- function(input, output) {
  logger::log_shiny_input_changes(input, excluded_inputs = "password")

  output$plot <- renderPlot({
    hist(rnorm(1e3, input$mean, input$sd), main = input$title)
  })
}

shinyApp(ui = ui, server = server)

## End(Not run)

logger documentation built on Oct. 30, 2024, 9:24 a.m.