Custom vcr http response object
Public fields
statusthe status of the response
headersthe response headers
bodythe response body
http_versionthe HTTP version
optsa list
adapter_metadataAdditional metadata used by a specific VCR adapter
hasha list
diska boolean
Methods
Method new()
Create a new VcrResponse object
Usage
VcrResponse$new(
status,
headers,
body,
http_version,
opts,
adapter_metadata = NULL,
disk
)Method print()
print method for the VcrResponse class
Method update_content_length_header()
Updates the Content-Length response header so that it is accurate for the response body
Examples
if (FALSE) {
vcr_configure(dir = tempdir())
# basic example of VcrResponse use
url <- "https://google.com"
(cli <- crul::HttpClient$new(url = url))
(res <- cli$get("get", query = list(q = "stuff")))
(x <- VcrResponse$new(res$status_http(), res$response_headers,
res$parse("UTF-8"), res$response_headers$status))
x$body
x$status
x$headers
x$http_version
x$to_hash()
x$from_hash(x$to_hash())
# update content length header
## example 1
### content-length header present, but no change
url <- "https://fishbase.ropensci.org"
cli <- crul::HttpClient$new(url = url, headers = list(`Accept-Encoding` = '*'))
res <- cli$get("species/34")
x <- VcrResponse$new(res$status_http(), res$response_headers,
res$parse("UTF-8"), res$response_headers$status)
x$headers$`content-length`
x$update_content_length_header()
x$headers$`content-length`
## example 2
### no content-length header b/c a transfer-encoding header is included
### and no content-length header allowed if transfer-encoding header
### used (via rfc7230)
url <- "https://google.com"
cli <- crul::HttpClient$new(url = url)
res <- cli$get()
x <- VcrResponse$new(res$status_http(), res$response_headers,
rawToChar(res$content), res$response_headers$status)
x$headers$`content-length` # = NULL
x$update_content_length_header() # no change, b/c header doesn't exist
x$headers$`content-length` # = NULL
## example 3
### content-length header present, and does change
body <- " Hello World "
x <- VcrResponse$new(200, list('content-length'=nchar(body)),
body, "HTTP/2")
x$headers$`content-length` # = 13
x$body <- gsub("^\\s|\\s$", "", x$body)
x$headers$`content-length` # = 13
x$update_content_length_header()
x$headers$`content-length` # = 11
# check if body is compressed
url <- "https://fishbase.ropensci.org"
(cli <- crul::HttpClient$new(url = url))
(res <- cli$get("species/3"))
res$response_headers
(x <- VcrResponse$new(res$status_http(), res$response_headers,
res$parse("UTF-8"), res$response_headers$status))
x$content_encoding()
x$is_compressed()
# with disk
url <- "https://google.com"
(cli <- crul::HttpClient$new(url = url))
f <- tempfile()
(res <- cli$get("get", query = list(q = "stuff"), disk = f))
(x <- VcrResponse$new(res$status_http(), res$response_headers,
f, res$response_headers$status, disk = TRUE))
}