update feature collection (not hosted) data

[JosiahParry]

Is your feature request related to a problem? Please describe.

To update the content of a feature collection object we can recreate the add-item process but instead of using the /addItem end point. This can be used, i think, to overwrite an existing feature service in the future.

Describe the solution you'd like

library(sf)
library(httr2)

set_auth_token(auth_code())

y <- sfdep::guerry |> 
  st_set_crs(27572)


feature_collection <- as_feature_collection(
  list(as_layer(y, "new title", "new title"))
)

spatial_reference <- jsonify::to_json(
  validate_crs(sf::st_crs(y))[[1]],
  unbox = TRUE
)
# https://[root]/content/users/[userName]/items/[itemID]/update(POST only)
# https://developers.arcgis.com/rest/users-groups-and-items/update-item.htm
item_id <- "0b5153ac7d2c4226a6a4a3f57d88c749" # not hosted id 
item_id <- "2e7b276b29e248a0a923e8efa2ab0d30" # hosted 

host <- arc_host()
user = Sys.getenv("ARCGIS_USER")
token = Sys.getenv("ARCGIS_TOKEN")


req <- req_url_path_append(
  request(host),
  "sharing", "content", 
  "users", user, 
  "items", item_id, 
  "update"
)

req_body <- req_body_form(
  req, f = "json", token = token,
  spatialReference = spatial_reference,
  text = jsonify::to_json(feature_collection, unbox = TRUE)
)

resp <- req_perform(req_body)

resp_body_string(resp)

Additional context Add any other context or screenshots about the feature request here.