Compare module - server

Gets the price history of the selected indices from the start date, renders their closes normalized to 100, and serves them as a CSV file named like compare-2026-11-07.csv, with the columns date, label, close and index. The download waits until the selection has not changed for 1.5 seconds, instead of starting on every click in the picker.

Usage

mod_compare_server(id, indices, dark_mode)

Arguments

id

Character. Module namespace id, must match the id used in mod_compare_ui().

indices

Data frame of indices from get_indices().

dark_mode

Reactive returning "light" or "dark", the mode of the app.

Value

None. Called for its side effect of registering the module server.

Examples

if (FALSE) { # \dontrun{
# inside app_server():
function(input, output, session) {
  mod_compare_server("compare", indices, reactive(input$dark_mode))
}
} # }