In the system that I am developing I have 3 different actors (user, admin, support team) using Shiny App. I want to know how I can give authentication to these three actors that
Try such i think it can help to do what you want
1) ui :
library(shiny)
library(shinydashboard)
shinyUI(
dashboardPage(
dashboardHeader(),
dashboardSidebar(),
dashboardBody(
uiOutput("page")
)
)
)
2) server :
library(shiny)
library(shinydashboard)
source("user.R")
source("admin.R")
my_username <- c("test","admin")
my_password <- c("test","123")
get_role=function(user){
if(user=="test") {
return("TEST")
}else{
return("ADMIN")
}
}
get_ui=function(role){
if(role=="TEST"){
return(list_field_user)
}else{
return(list_field_admin)
}
}
shinyServer(function(input, output,session) {
USER <- reactiveValues(Logged = FALSE,role=NULL)
ui1 <- function(){
tagList(
div(id = "login",
wellPanel(textInput("userName", "Username"),
passwordInput("passwd", "Password"),
br(),actionButton("Login", "Log in")))
,tags$style(type="text/css", "#login {font-size:10px; text-align: left;position:absolute;top: 40%;left: 50%;margin-top: -10px;margin-left: -150px;}")
)}
ui2 <- function(){list(tabPanel("Test",get_ui(USER$role)[2:3]),get_ui(USER$role)[[1]])}
observe({
if (USER$Logged == FALSE) {
if (!is.null(input$Login)) {
if (input$Login > 0) {
Username <- isolate(input$userName)
Password <- isolate(input$passwd)
Id.username <- which(my_username == Username)
Id.password <- which(my_password == Password)
if (length(Id.username) > 0 & length(Id.password) > 0) {
if (Id.username == Id.password) {
USER$Logged <- TRUE
USER$role=get_role(Username)
}
}
}
}
}
})
observe({
if (USER$Logged == FALSE) {
output$page <- renderUI({
box(
div(class="outer",do.call(bootstrapPage,c("",ui1()))))
})
}
if (USER$Logged == TRUE) {
output$page <- renderUI({
box(width = 12,
div(class="outer",do.call(navbarPage,c(inverse=TRUE,title = "Contratulations you got in!",ui2())))
)})
#print(ui)
}
})
})
3) user.r:
list_field_user = list(tabPanel("test2",fluidRow(column(6,numericInput("inputtest", "test", value = 0),column(6,actionButton(inputId ="test1",label ="go"))))),
h1("1234"),h2("234"))
4) admin.r
list_field_admin = list( h1("admin"),h2("admin"))
!!! place all this files in one dir
that simple example but this can help you