Plumber 0.4.x Post Request Retrieve Body?

bsadeghian · March 15, 2021, 8:44pm

Hi,

I was wondering, how does one retrieve the request's body in a POST request made to a Plumber endpoint? For certain business reasons Im only allowed to use Plumber 0.4.x. In plumber 1.0.0 Id use the following but this doesnt appear to be the case for <1.0. Ive found a few named entries in the req object but none of them have the request body (postBody was the closest named entry i found but it was also empty)

Any help would be appreciated. Also, where may I find the documentation for this version of Plumber (if it exists)? Ive referred to what is on the rplumber.io website but that doesnt seem to be well aligned.

#* @serializer json
#* @response 200 etc etc
#* @post /projects
function(res, req){
  req$body
}

meztez · March 16, 2021, 3:01am

req$postBody

Is supposed to contain the request postBody. Business reasons are the worst.

github.com

rstudio/plumber/blob/dd7139b1659680038d5d98377a6da5718132cb87/R/post-body.R#L7


postBodyFilter <- function(req){
  handled <- req$.internal$postBodyHandled
  if (is.null(handled) || handled != TRUE){
    body <- req$rook.input$read_lines()
    charset <- getCharacterSet(req$HTTP_CONTENT_TYPE)
    args <- parseBody(body, charset)
    req$postBody <- body
    req$args <- c(req$args, args)
    req$.internal$postBodyHandled <- TRUE
  }
  forward()
}

#' @importFrom utils URLdecode
#' @noRd
parseBody <- function(body, charset = "UTF-8"){
  # The body in a curl call can also include querystring formatted data

system · April 6, 2021, 3:02am

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