Generate the Server Code for the Web App

Generate the Server Code for the Web App

Usage

app_events()

app_server(input, output, session)

initial_reactive_values(global = global_list())

initial_output(main = ".", global, rv, output)

event_reaction(main, global, event, rv, input, output, session)

update_reactive_values(event, rv, input)

update_output(main, global, event, rv, input, output)

update_input(global, event, rv, input, session)

Arguments

input

input list for the UI.

output

output list for the UI.

session

Environment for the UI.

global

A list of global values for the app.

main

character value of the name of the main component of the directory tree.

rv

reactiveValues list for the UI.

event

character value of the server event.
Options are managed by app_events -- currently including "forecast_tab_species", "forecast_tab_dataset", "forecast_tab_model", "forecast_tab_historic_end_newmoonnumber", "evaluation_tab_species", "evaluation_tab_dataset", "evaluation_tab_model", and "evaluation_tab_historic_end_newmoonnumber")

Value

app_server: an observer reference class object (see observeEvent and observe).

initial_reactive_values: a reactiveValues

list.

initial_output: an output

list.

event_reaction: updates the rv, output, and input

lists, but does not return them, per se.

update_reactive_values: a reactiveValues

list.

update_output: an output

list.

update_input: updates the input

list, but does not return it.

app_events: character vector of event names.

See also

Other shinyapp: portalcasting app selection helpers, portalcasting app ui, portalcasting app

Examples

if (FALSE) {
   main1 <- file.path(tempdir(), "app")
   setup_dir(main = main1)

   global <- global_list(main = main1)
 
   rv     <- initial_reavtive_values(global = global)

   output <- initial_output(main   = main1,
                            global = global,
                            rv     = rv,
                            output = list())

   unlink(main1, recursive = TRUE)
 }