## Only run this example in interactive R sessions
if (interactive()) {
options(shiny.testmode = TRUE)
# This application shows the test snapshot URL; clicking on it will
# fetch the input, output, and exported values in JSON format.
shinyApp(
ui = basicPage(
h4("Snapshot URL: "),
uiOutput("url"),
h4("Current values:"),
verbatimTextOutput("values"),
actionButton("inc", "Increment x")
),
server = function(input, output, session) {
vals <- reactiveValues(x = 1)
y <- reactive({ vals$x + 1 })
observeEvent(input$inc, {
vals$x <<- vals$x + 1
})
exportTestValues(
x = vals$x,
y = y()
)
output$url <- renderUI({
url <- session$getTestSnapshotUrl(format="json")
a(href = url, url)
})
output$values <- renderText({
paste0("vals$x: ", vals$x, "\ny: ", y())
})
}
)
}
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