#' Logout from the Betfair API.
#'
#' \code{logoutBF} terminates the current session. \code{\link{loginBF}} will
#' need to be called again before any further actions can be performed.
#'
#' \code{logoutBF} terminates the current session. \code{\link{loginBF}} will
#' need to be called again before any further actions can be performed.
#'
#' @seealso
#' \url{https://api.developer.betfair.com/services/webapps/docs/display/1smk3cen4v3lu3yomq5qye0ni/Logout}
#' for general information on requesting Logout on the Betfair API.
#'
#' @seealso \code{\link{loginBF}}, which must be executed first, as this
#' function requires a valid session token
#'
#' @param suppress Boolean. \code{RCurl::postForm} posts a warning due to a
#' lack of inputs. By default, this parameter is set to TRUE, meaning this
#' warning is suppressed. Changing this parameter to FALSE will result in warnings
#' being posted.
#'
#' @param sslVerify Boolean. This argument defaults to TRUE and is optional. In
#' some cases, where users have a self signed SSL Certificate, for example
#' they may be behind a proxy server, Betfair will fail login with "SSL
#' certificate problem: self signed certificate in certificate chain". If this
#' error occurs you may set sslVerify to FALSE. This does open a small
#' security risk of a man-in-the-middle intercepting your login credentials.
#'
#' @return Similar to \code{\link{loginBF}}, the call output is parsed from JSON
#' as a list, from which the statuses SUCCESS or FAIL and error, if it is
#' not null are returned as a colon seperated concatenated string. For error
#' values, see
#' \url{https://api.developer.betfair.com/services/webapps/docs/display/1smk3cen4v3lu3yomq5qye0ni/Logout}.
#'
#' @examples
#' \dontrun{
#' loginBF("username","password","appKey")
#' logoutBF()
#' logoutBF()
#'
#' The last logout in this block will return an error. The first logout terminates
#' the session, meaning there is no session to end on the second logout request.
#' }
#'
logoutBF = function(suppress = TRUE, sslVerify = TRUE) {
# Read Environment variables for authorisation details
product <- Sys.getenv('product')
token <- Sys.getenv('token')
if (suppress)
logout <-
suppressWarnings(logout <- as.list(httr::content(
httr::POST(url = "https://identitysso.betfair.com/api/logout",
httr::add_headers(Accept = "application/json",
"X-Application" = product,
"X-Authentication" = token)), as = "parsed")
))
else
(logout <- as.list(httr::content(
httr::POST(url = "https://identitysso.betfair.com/api/logout",
httr::add_headers(Accept = "application/json",
"X-Application" = product,
"X-Authentication" = token)), as = "parsed")
)
)
return(paste0(logout$status,":",logout$error))
}
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