Creating a Shortcut for a Shiny App

[Ryan Grannell]

Hello,

Does anyone know how to create a shortcut that, when clicked, runs a shiny app? Something that works like > runApp('directory name'), without you having to type into a console. I've tried using the following batch script, but it didn't open the app for me.

"C:\Program Files\R\R-2.15.1\bin\R.exe" CMD BATCH "run.r",

where run.r contains a call to runApp(....). Any thoughts?

[Ryan Grannell]

Nevermind, problem resolved. The run.r file needed to contain the argument launch.browser=TRUE, since I wasn't targeting the interactive R executable

[Joe Cheng]

Or just

"C:\Program Files\R\R-2.15.1\bin\R.exe" -e "shiny::runApp()"

and set the working directory of the shortcut to your Shiny app directory. Oh, you might want to add a unique "port" argument to the runApp call for each shortcut, so they don't conflict.

On Tue, Dec 11, 2012 at 1:26 PM, Ryan Grannell <r.gra...@gmail.com> wrote:

Nevermind, problem resolved. The run.r file needed to contain the argument launch.browser=TRUE, since I wasn't targeting the interactive R executable

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[Ryan Grannell]

Thanks for the tip :)

[Vincent Nijs]

This works great in windows (see command below). I tried to do the same thing for Mac with the following command:

Rscript --no-save --no-restore -e "shiny::runApp('Desktop/radyant/', launch.browser=TRUE)"

However that gives the following error:

Loading required package: shiny

Error in ReactiveValues$new : could not find function "loadMethod"

Calls: <Anonymous> ... reactiveValues -> .createReactiveValues -> structure -> $

Execution halted

I also tried:

R --vanilla < Desktop/radyant/init.R

where init.R has the shiny::runApp command. This works fine from a terminal but, strangely, in an automator .app will start the app in a browser but not show data and only a few ui-elements

Content of windows .bat file for windows (which works well): 

"C:\Program Files\R\R-3.0.2\bin\R.exe" -e "shiny::runApp('~/../Desktop/radyant/', launch.browser=TRUE)"

[Winston Chang]

I think this has something to do with the methods package not being loaded properly. Can you see if this works:

  Rscript --no-save --no-restore -e "library(methods); shiny::runApp('Desktop/radyant/', launch.browser=TRUE)"

This is something that should be easily fixable in Shiny.

-Winston

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[Vincent Nijs]

Thanks Winston!

The Rscript command works from the terminal now. However, when run from an automator workflow I, again, it is not showing the data. Since the data is in a reactive value I think the same issue might still be happening but I cannot see any error messages.

Images of what the app looks like when the command is run from from the terminal vs from a workflow are attached.

[Vincent Nijs]

Putting the following in a workflow or app works so I am all set: 

tell application "R"
activate
cmd "setwd('~/Desktop/radyant/')"
cmd "shiny::runApp()"
end tell

Thanks Winston