logoutUI: logout UI module

In shinyauthr: 'Shiny' Authentication Modules

Description

Shiny UI Module for use with logoutServer

Usage

logoutUI(
  id,
  label = "Log out",
  icon = NULL,
  class = "btn-danger",
  style = "color: white;"
)

Arguments

id	An ID string that corresponds with the ID used to call the module's server function
label	label for the logout button
icon	An optional icon to appear on the button.
class	bootstrap class for the logout button
style	css styling for the logout button

Value

Shiny UI action button

Examples

library(shiny)

# dataframe that holds usernames, passwords and other user data
user_base <- dplyr::tibble(
  user = c("user1", "user2"),
  password = c("pass1", "pass2"),
  permissions = c("admin", "standard"),
  name = c("User One", "User Two")
)

ui <- fluidPage(
  # add logout button UI
  div(class = "pull-right", shinyauthr::logoutUI(id = "logout")),
  # add login panel UI function
  shinyauthr::loginUI(id = "login"),
  # setup table output to show user info after login
  tableOutput("user_table")
)

server <- function(input, output, session) {
  # call login module supplying data frame, 
  # user and password cols and reactive trigger
  credentials <- shinyauthr::loginServer(
    id = "login",
    data = user_base,
    user_col = user,
    pwd_col = password,
    log_out = reactive(logout_init())
  )
  
  # call the logout module with reactive trigger to hide/show
  logout_init <- shinyauthr::logoutServer(
    id = "logout",
    active = reactive(credentials()$user_auth)
  )
  
  output$user_table <- renderTable({
    # use req to only render results when credentials()$user_auth is TRUE
    req(credentials()$user_auth)
    credentials()$info
  })
}

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

shinyauthr documentation built on July 20, 2021, 9:07 a.m.