running R package using shiny and saving files into computer automatically

[vsrinivas1]

Hi all,
I have an R package I need run using shiny. The outputs need to be saved as a result of the model run to a designated location (relative path) in the computer, rather than simply displaying on the web page.Can someone point me to an example or documentation.

thanks

[pieterjanvc]

Hi,

Welcome to the RStudio community!

Here is an example:

library(shiny)

ui <- fluidPage(
  
  actionButton("btn","Save locally")
  
)

server <- function(input, output, session) {
  
  observeEvent(input$btn, {
    write.csv(data.frame(x = 1:10), "myData.csv")
  })
  
}

shinyApp(ui, server)

This will write the file to the Shiny app folder. You can set a relative path from there. Beware though that if you are running this on a server, going up from the app root folder might cause issues, as Shiny is supposed to run everything within its own folder. Saving in subfolders from the main one is no issue. On a local machine, using absolute or relative paths should not cause issues.

Hope this helps,
PJ

[vsrinivas1]

Thank you very much for this!!