R/deeplink.R

In statistiekcbs/cbsccb: Statistics Netherlands (CBS) Open Data API Client v4

# TODO check if base_url is implemented internally for deeplinking
#DEEPLINK <- "https://opendata.cbs.nl/deeplinkservice/deeplink"
#deeplink <- "https://opendata.cbs.nl/dataportaal/#/CBS/nl/dataset/81573NED/table?dl=17022"
#deeplink <- "https://opendata.cbs.nl/dataportaal/#/CBS/en/dataset/71509ENG/table?dl=193CB"

#' resolve a deeplink created in the opendata portal
#'
#' @param deeplink url to the deeplink in the opendataportal
#' @param ... used in the query
#' @param base_url optionally specify a different server. Useful for
#' third party data services implementing the same protocol.
#' @return information object with table id, select, filter and query statement.
# resolve_deeplink <- function(deeplink, ..., base_url = getOption("cbsodata4.base_url", BASEURL4)){
#
#   id <- sub(".*/dataset/(\\w+)/.*", "\\1", deeplink)
#   query <- sub(".*\\?(.*)", "\\1", deeplink)
#   dl <- url_params(query)$dl
#
#   # appearantly the deeplink service only works on BASE_URL
#   text <- readLines(file.path(BASE_URL, "deeplinkservice/deeplink", dl), warn = FALSE)
#   text <- gsub("\"", "", text)
#   info <- parse_odata_link(id, text)
#   # info <- url_params(text)
#   # info$id <- id
#   # info <- info[c("id", "$select", "$filter")]
#   # names(info) <- c("id", "select", "filter")
#   # info$filter <- resolve_filter(info$filter)
#   # info$select <- resolve_select(info$select)
#   info$deeplink <- deeplink
#   cgd <- c( quote(cbs_get_data)
#           , id = info$id
#           , info$filter
#           , list(select = info$select)
#           , list(...)
#           , base_url = base_url
#           )
#   info$query <- as.call(cgd)
#   info
# }
#
# parse_odata_link <- function(id, text, ...){
#   info <- url_params(text)
#   info$id <- id
#   info <- info[c("id", "$select", "$filter")]
#   names(info) <- c("id", "select", "filter")
#   info$filter <- resolve_filter(info$filter)
#   info$select <- resolve_select(info$select)
#   info
# }
#
#
# url_params <- function(query){
#   params <- strsplit(query, "&")[[1]]
#   keys <- sub("=.*", "", params)
#   values <- sub(".*=", "", params)
#   names(values) <- keys
#   as.list(values)
# }
#
# resolve_select <- function(select){
#   if (is.null(select)){
#     return(NULL)
#   }
#   strsplit(select, "\\s*,\\s*")[[1]]
# }
#
#
#