Get Bundesland GeoJSON boundaries

Get Bundesland GeoJSON boundaries

Usage

hochwasserzentralen_bundesland_geojson(
  version,
  safe = TRUE,
  refresh = FALSE,
  flatten = FALSE,
  flatten_mode = "json"
)

Arguments

version

GeoJSON version identifier (e.g., "20211130").

safe

Logical; if TRUE (default), apply rate-limiting and cache GET responses to tools::R_user_dir("bunddev", "cache").

refresh

Logical; if TRUE, ignore cached responses and re-fetch from the API (default FALSE).

flatten

Logical; if TRUE, simplify nested list columns according to flatten_mode. Default FALSE keeps list columns as-is.

flatten_mode

How to handle list columns when flatten = TRUE:

"drop"

Remove list columns entirely. Use when nested data is not needed.

"json"

Convert each list element to a JSON string. Preserves all data in a text-queryable format. This is the default.

"unnest"

Expand list columns into multiple rows via tidyr::unnest_longer(). Warning: this can significantly increase the number of rows.

Value

A one-row tibble with:

type

GeoJSON object type (character).

name

GeoJSON dataset name (character).

features

GeoJSON feature list (list-column).

Details

Returns GeoJSON boundaries for Bundeslaender and connected regions from the hochwasserzentralen.de portal. API documentation: https://bundesapi.github.io/hochwasserzentralen-api/.

See also

Other Hochwasserzentralen: hochwasserzentralen_bundeslaender(), hochwasserzentralen_bundesland_info(), hochwasserzentralen_lagepegel(), hochwasserzentralen_pegel_info()

Examples

if (FALSE) { # \dontrun{
hochwasserzentralen_bundesland_geojson("20211130", flatten = TRUE)
} # }