ipify_api_get_ipv4 = function() {
  res = httr::GET(
    "https://api.ipify.org"
  )
  httr::stop_for_status(res)
  httr::content(res, encoding = "UTF-8")
}
ipify_api_get_ipv6 = function() {
  res = httr::GET(
    "https://api6.ipify.org"
  )
  httr::stop_for_status(res)
  httr::content(res, encoding = "UTF-8")
}
get_external_ip = function(type = c("ipv4", "ipv6")) {
  type = match.arg(type)
  switch(
    type,
    "ipv4" = ipify_api_get_ipv4(),
    "ipv6" = ipify_api_get_ipv6(),
    usethis::ui_stop("Unknown ip type {usethis::ui_value(type)}.")
  )
}
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