зеркало из https://github.com/Azure/AzureRMR.git
76 строки
2.3 KiB
R
76 строки
2.3 KiB
R
#' @export
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call_azure_rm <- function(token, subscription, operation, ...,
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options=list(),
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api_version=getOption("azure_api_version"))
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{
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url <- httr::parse_url(token$credentials$resource)
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url$path <- file.path("subscriptions", subscription, operation, fsep="/")
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url$query <- modifyList(list(`api-version`=api_version), options)
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call_azure_url(token, httr::build_url(url), ...)
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}
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#' @export
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call_azure_url <- function(token, url, ...,
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http_verb=c("GET", "DELETE", "PUT", "POST", "HEAD", "PATCH"),
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http_status_handler=c("stop", "warn", "message", "pass"),
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auto_refresh=TRUE)
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{
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headers <- process_headers(token, ..., auto_refresh=auto_refresh)
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verb <- get(match.arg(http_verb), getNamespace("httr"))
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# do actual API call
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res <- verb(url, headers, ...)
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process_response(res, match.arg(http_status_handler))
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}
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process_headers <- function(token, ..., auto_refresh)
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{
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# if token has expired, renew it
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if(auto_refresh && !token$validate())
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{
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message("Access token has expired or is no longer valid; refreshing")
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token$refresh()
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}
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creds <- token$credentials
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host <- httr::parse_url(creds$resource)$host
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headers <- c(Host=host, Authorization=paste(creds$token_type, creds$access_token))
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# default content-type is json, set this if encoding not specified
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dots <- list(...)
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if(is_empty(dots) || !("encode" %in% names(dots)))
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headers <- c(headers, `Content-type`="application/json")
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httr::add_headers(.headers=headers)
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}
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process_response <- function(response, handler)
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{
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if(handler != "pass")
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{
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handler <- get(paste0(handler, "_for_status"), getNamespace("httr"))
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handler(response, paste0("complete Resource Manager operation. Message:\n",
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sub("\\.$", "", arm_error_message(response))))
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cont <- httr::content(response)
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if(is.null(cont))
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cont <- list()
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attr(cont, "status") <- httr::status_code(response)
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cont
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}
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else response
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}
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# provide complete error messages from Resource Manager
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arm_error_message <- function(response)
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{
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cont <- httr::content(response)
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paste0(strwrap(cont$error$message), collapse="\n")
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}
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