Create a Tableau Extension object

tableau_extension() is to shinytableau extensions, what shiny::shinyApp() is to Shiny apps. Both functions are used as the last expression of an app.R file, and bring together the ui and server objects. However, tableau_extension() has additional arguments for the Tableau extension manifest (required) and configuration dialog UI and server (optional).

tableau_extension(
  manifest,
  ui,
  server,
  config_ui = NULL,
  config_server = NULL,
  options = ext_options()
)

Arguments

manifest	A Tableau manifest object, which provides a description of the extension for both human and machine use. The easiest way to provide this information is by creating a manifest.yml file. Call the `yaml_skeleton()` function from the R prompt to create a sample manifest.yml in the same directory as your app.R file, then customize it for your extension. Then, in app.R, call `manifest <- [tableau_manifest_from_yaml()]` and pass the `manifest` object as this argument.
ui	A function that takes a single `req` argument and returns the UI definition of the extension. When the extension is added to a Tableau dashboard, this is the UI that will be displayed within the extension object.
server	A function with three parameters (`input`, `output`, and `session`) that sets up the server-side reactive logic to go with `ui`.
config_ui	Optional. A function that takes a single `req` argument and returns the UI definition to be used for the extension's configuration dialog. Unlike regular Shiny UI definitions, this should just be a `shiny::tagList()` or HTML object rather than an entire page like `shiny::fluidPage()` or `shiny::fillPage()`.
config_server	Optional. A function with four parameters (`input`, `output`, `session`, and `iv`) that sets up the server-side reactive logic to go with `config_ui`. The `iv` parameter is a shinyvalidate::InputValidator object that will enable when the config dialog's OK or Apply buttons are clicked. The `config_server` function must return a zero-argument function that, when run, calls `update_tableau_settings_async()` to persist the user's configuration preferences.
options	See `ext_options()`.

Arguments

See also