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#' Mocking HTTP requests
#'
#' @export
#' @param on (logical) turn mocking on with `TRUE` or turn off with `FALSE`.
#' By default is `FALSE`
#' @details `webmockr` package required for mocking behavior
#' @examples \dontrun{
#'
#' if (interactive()) {
#' # load webmockr
#' library(webmockr)
#' library(crul)
#'
#' URL <- "https://httpbin.org"
#'
#' # turn on mocking
#' crul::mock()
#'
#' # stub a request
#' stub_request("get", file.path(URL, "get"))
#' webmockr:::webmockr_stub_registry
#'
#' # create an HTTP client
#' (x <- HttpClient$new(url = URL))
#'
#' # make a request - matches stub - no real request made
#' x$get('get')
#'
#' # allow net connect
#' webmockr::webmockr_allow_net_connect()
#' x$get('get', query = list(foo = "bar"))
#' webmockr::webmockr_disable_net_connect()
#' x$get('get', query = list(foo = "bar"))
#' }
#'
#' }
mock <- function(on = TRUE) {
check_for_package("webmockr")
crul_opts$mock <- on
}
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