Downloadhandler doesnt respect the paste function. about r-shinyapp-tutorial HOT 3 CLOSED

On Mon, May 7, 2018 at 8:47 AM, Abhinav Agrawal ***@***.***> wrote: Hello David, Thanks for the details. Sharing the observation - Not sure why you have input$var3 in your downloadhandler(). The UI does not have any input widget with var3 input ID. Nevertheless, I ran the code with the following updates - output$down <- downloadHandler( filename = function() { paste("iris", input$type, sep=".") *# replace input$var3 by input$type ty Abi* }, # content is a function with argument file. content writes the plot to the device content = function(file) { if(input$type == "png") *# replace input$var3 by input$type ty Abi* png(file) # open the png device else pdf(file) # open the pdf device hist(colm()) # draw the plot dev.off() # turn the device off } ) Code ran without any errors. Important Point to note - I am guessing that you are running the app in the window. This would be the "Run in Window" option of the "Run App" icon in the RStudio. If so, then for some reason RStudio would pop up the dialog box ignoring the file name you create using paste and would show the file name as the output ID of download handler which in your case is "down". It is a known behavior. I suggest you choose "Run External" and then you should be able to download the file with the file name you have defined in the downloadhandler function. I have tested it and should work for you. Let me know how it goes. I will exclusively make a video as well to show this to you tube viewers so it is easy to understand and they do not take this as a failure on them or an issue per say. I will wait for your response so can close this item. Thanks, have a great day! Regards, Abi — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#2 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AOYyRQ_vGLw_U0CO7QsXOkI4rHg1jbhDks5tv7y0gaJpZM4T0DS-> .