Create and attach STAC collections — collection

Pure builders for a STAC Collection document. Neither function touches disk; use stac_save() to persist.

new_collection(): creates an in-memory Collection object.
add_collection(): registers a collection as a child of a catalog and returns the updated catalog.

Usage

new_collection(
  id,
  title,
  description,
  license = "proprietary",
  extent = NULL,
  stac_version = "1.0.0",
  ...
)

add_collection(catalog, collection)

Arguments

id: A character identifier for the collection.
title: A character human-readable title.
description: A character description of the collection.
license: A character license identifier or URL. Defaults to "proprietary".
extent: A list with the collection spatial and temporal extent. If NULL, an empty extent is created and later updated by add_items().
stac_version: A character STAC specification version. Defaults to "1.0.0".
...: Additional named fields added to the collection document.
catalog: A doc_catalog object the collection is attached to.
collection: A doc_collection object to register.

Value

new_collection(): a doc_collection object.
add_collection(): the updated doc_catalog (the parent), so it can be chained with another call.

Examples

col <- new_collection(
  id = "my-collection",
  title = "My Collection",
  description = "An example collection"
)
col$type
#> [1] "Collection"

cat <- new_catalog("cat", "Catalog", "Example")
cat <- add_collection(cat, col)