Notifications in Shiny, via toastr
source("https://install-github.me/gaborcsardi/shinytoastr")
Call useToastr() at the beginning of ui definition, and then in the server definition use one of the notification functions, toastr_success(), toastr_info(), toastr_warning() or toastr_error() to create notifications:
library(shinytoastr)
ui <- shinyUI(fluidPage(
useToastr(),
pageWithSidebar(
headerPanel("Header"),
sidebarPanel(
...
actionButton(inputId = "save_button", label = "Save",
class = "btn-primary")
...
),
mainPanel(
...
)
)
))
server <- function(input, output, session) {
...
observeEvent(
input$save_button,
{
tryCatch(
{
writeToDB(data)
toastr_success("Saved to database")
},
error = function(e) {
toastr_error(title = "Database error", conditionMessage(e))
}
)
}
)
}
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