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Collaborative kanban board server

Source: R/kanban.R
kanban_server.Rd

Server logic for a collaborative kanban board that synchronizes across Shiny sessions using Automerge CRDT.

Usage

kanban_server(
  id,
  doc_id = "default",
  columns = c(todo = "To Do", in_progress = "In Progress", done = "Done"),
  initial_items = NULL
)

Arguments

id

Module ID (must match the ID used in kanban_ui()).

doc_id

Document identifier. All kanban boards with the same doc_id synchronize together. Default is "default".

columns

Named character vector defining the columns (must match UI).

initial_items

Optional named list of initial items per column. Names should be column IDs, values are character vectors of item texts.

Value

A reactive expression returning a data frame with columns id, text, done, and column.

Details

Items can be moved between columns using the arrow buttons. The kanban board uses a single Automerge document where each item has a column field indicating which column it belongs to.

See also

Other kanban: kanban_ui()

Examples

if (interactive()) {
  ui <- shiny::fluidPage(kanban_ui("board"))
  server <- function(input, output, session) {
    kanban_server("board", initial_items = list(
      todo = c("Design feature", "Write tests"),
      in_progress = c("Code review"),
      done = c("Deploy v1.0")
    ))
  }
  shiny::shinyApp(ui, server)
}