How to set default port number for app?

[dereckmezquita]

I was using this:

shiny::shinyApp(ui, server,
    options = list(
        port = 3003,
        launch.browser = TRUE
    )
)

How can I configure the default port number in rhino? I couldn't find the option in the config.yml nor rhino.yml. Should I create a new file index.R and then paste the above there and run that?

[kamilzyla]

Hi @dereckdemezquita! Thanks for using Rhino and for asking 🙂 Two approaches come to my mind:

Set options in .Rprofile

Add these lines to the .Rprofile file in your project:

options(
  shiny.port = 3003,
  shiny.launch.browser = TRUE
)

After restarting your R session, you can launch the app as usual by running shiny::runApp() in the R console or via "Run app" button (on the app.R file) in RStudio.

Create a launch script

Create a run.R script with the following content:

shiny::runApp(
  port = 3003,
  launch.browser = TRUE
)

You can then launch the app by sourcing this script in your R console (source("run.R")). If you're on Linux / macOS, you can also make the script executable:

1. Put #!/usr/bin/env R in the first line of run.R.
2. Run chmod +x run.R in shell.
3. Launch it with ./run.R.

[shahreyar-abeer]

Thanks @kamilzyla and @dereckdemezquita
I ran into the same issue. This helps solve it!