crul-options function

Set curl options, proxy, and basic auth

set_opts(...)

set_verbose()

set_proxy(x)

set_auth(x)

set_headers(...)

crul_settings(reset = FALSE)

Arguments

• ...: For set_opts() any curl option in the set curl::curl_options(). For set_headers() a named list of headers
• x: For set_proxy() a proxy object made with proxy(). For set_auth() an auth object made with auth()
• reset: (logical) reset all settings (aka, delete them). Default: FALSE

Details

• set_opts(): set curl options; supports any options in curl::curl_options()

• set_verbose(): set custom curl verbose; sets verbose=TRUE

  and debugfunction to the callback result from curl_verbose()

• set_proxy(): set proxy settings, accepts proxy()

• set_auth(): set authorization, accepts auth()

• set_headers(): set request headers, a named list

• crul_settings(): list all settigns set via these functions

Note

the mock option will be seen in output of crul_settings()

but is set via the function mock()

Examples

if (interactive()) {
# get settings
crul_settings()

# curl options
set_opts(timeout_ms = 1000)
crul_settings()
set_opts(timeout_ms = 4000)
crul_settings()
set_opts(verbose = TRUE)
crul_settings()
## Not run:

HttpClient$new('https://hb.opencpu.org')$get('get')
## End(Not run)

# set_verbose - sets: `verbose=TRUE`, and `debugfunction` to 
# result of call to `curl_verbose()`, see `?curl_verbose`
set_verbose()
crul_settings()

# basic authentication
set_auth(auth(user = "foo", pwd = "bar", auth = "basic"))
crul_settings()

# proxies
set_proxy(proxy("http://97.77.104.22:3128"))
crul_settings()

# headers
crul_settings(TRUE) # reset first
set_headers(foo = "bar")
crul_settings()
set_headers(`User-Agent` = "hello world")
crul_settings()
## Not run:

set_opts(verbose = TRUE)
HttpClient$new('https://hb.opencpu.org')$get('get')
## End(Not run)

# reset
crul_settings(TRUE)
crul_settings()

# works with async functions
## Async
set_opts(verbose = TRUE)
cc <- Async$new(urls = c(
    'https://hb.opencpu.org/get?a=5',
    'https://hb.opencpu.org/get?foo=bar'))
(res <- cc$get())

## AsyncVaried
set_opts(verbose = TRUE)
set_headers(stuff = "things")
reqlist <- list(
  HttpRequest$new(url = "https://hb.opencpu.org/get")$get(),
  HttpRequest$new(url = "https://hb.opencpu.org/post")$post())
out <- AsyncVaried$new(.list = reqlist)
out$request()
}