Launch the interactive graph viewer — graph

Opens a local Shiny app that lets you explore the graph of a LadybugDB connection: g6R force-layout graph (node/relationship type filters, N-hop focus subgraph, pagination), a reactable table view, free Cypher queries (graph-capable results replace the graph, anything else replaces the table), and CSV/Excel/JSON/PNG exports.

Usage

graph_viewer(
  conn,
  port = NULL,
  host = "127.0.0.1",
  launch_browser = interactive(),
  page_size = 300L,
  load_step = 300L,
  ...
)

check_app_deps()

Arguments

conn: A Ladybug connection object, as returned by lb_connection().
port: Port for the local Shiny server (default: pick a free one).
host: Host for the local Shiny server.
launch_browser: Open the app in the default browser (default: interactive()).
page_size: Initial number of nodes rendered in the graph.
load_step: Increment for the "Load more" button.
...: Further arguments passed to shiny::runApp().

Value

The Shiny app object (invisible; the server blocks until stopped).

Details

The app runs in-process on the current R session and uses the given connection directly (no separate process, no HTTP backend). Write operations (CREATE, DROP, DELETE, ALTER, DETACH, MERGE) are blocked client-side.

Examples

if (FALSE) { # \dontrun{
conn <- lb_connection(":memory:")
lb_execute(conn, "CREATE NODE TABLE User(name STRING, age INT64,
PRIMARY KEY (name))")
lb_execute(conn, "CREATE (:User {name: 'Alice', age: 25})")
graph_viewer(conn)
} # }