How to download data used in Plotly Bar plot in Shiny Application

Hi All,

I have written a shiny application which has Plotly bar plot as UI output. How can i add a download button in tooltip to download data required for plotting the chart?

Can you elaborate on how specifically this could/should work? Regardless, it probably won't be very straightforward to do this via a tooltip. It would be easiest (and most accessible) to do this via an actual button:

library(shiny)

ui <- fluidPage(
  downloadButton("download"),
  plotlyOutput("p")
)

server <- function(input, output, session) {
  
  data <- reactive(mtcars)
  
  output$p <- renderPlotly({
    plot_ly(data(), x = ~wt, y = ~mpg)
  })
  
  output$download <- downloadHandler(
    filename = "data.csv",
    content = function(file) {
      readr::write_csv(data(), file)
    }
  )
}

shinyApp(ui, server)

Another option would be to add a custom download icon in plotly's modebar, but again, it won't be super straightforward and will require some JavaScript+SVG knowledge -- https://plotly-r.com/control-modebar.html

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