sdk/R/R/HttpRequest.R

   1 source("./R/util.R")
   2
   3 HttpRequest <- R6::R6Class(
   4
   5     "HttrRequest",
   6
   7     public = list(
   8
   9         validContentTypes = NULL,
  10         validVerbs = NULL,
  11
  12         initialize = function()
  13         {
  14             self$validContentTypes <- c("text", "raw")
  15             self$validVerbs <- c("GET", "POST", "PUT", "DELETE", "PROPFIND", "MOVE")
  16         },
  17
  18         exec = function(verb, url, headers = NULL, body = NULL, queryParams = NULL,
  19                         retryTimes = 0)
  20         {
  21             if(!(verb %in% self$validVerbs))
  22                 stop("Http verb is not valid.")
  23
  24             headers  <- httr::add_headers(unlist(headers))
  25             urlQuery <- self$createQuery(queryParams)
  26             url      <- paste0(url, urlQuery)
  27
  28             # times = 1 regular call + numberOfRetries
  29             response <- httr::RETRY(verb, url = url, body = body,
  30                                     config = headers, times = retryTimes + 1)
  31         },
  32
  33         createQuery = function(queryParams)
  34         {
  35             queryParams <- Filter(Negate(is.null), queryParams)
  36
  37             query <- sapply(queryParams, function(param)
  38             {
  39                 if(is.list(param) || length(param) > 1)
  40                     param <- RListToPythonList(param, ",")
  41
  42                 URLencode(as.character(param), reserved = T, repeated = T)
  43
  44             }, USE.NAMES = TRUE)
  45
  46             if(length(query) > 0)
  47             {
  48                 query <- paste0(names(query), "=", query, collapse = "&")
  49
  50                 return(paste0("/?", query))
  51             }
  52
  53             return("")
  54         }
  55     ),
  56
  57     cloneable = FALSE
  58 )