Execute a custom rendering script and return a result.

Execute a custom rendering script and return a result.

execute_lua(
  splash_obj,
  lua_source,
  timeout = 30,
  allowed_domains,
  proxy,
  filters,
  save_args,
  load_args
)

Arguments

splash_obj

Object created by a call to splash()
lua_source

Browser automation script. See Splash Script Tutorial for more info.
timeout

A timeout (in seconds) for the render (defaults to 30). Without reconfiguring the startup parameters of the Splash server (not this package) the maximum allowed value for the timeout is 60 seconds.
allowed_domains

Comma-separated list of allowed domain names. If present, Splash won’t load anything neither from domains not in this list nor from subdomains of domains not in this list.
proxy

Proxy profile name or proxy URL.
filters

Comma-separated list of request filter names.
save_args

A list of argument names to put in cache.
load_args

Parameter values to load from cache

Value

raw content from the httr call. Given the vast diversity of possible return values, it's up to the caller to handle the return value.

See also

Other splash_renderers: render_har(), render_html(), render_jpeg(), render_json(), render_png()

Examples

# NOT RUN {
splash_local %>%
  execute_lua('
function main(splash)
  splash:go("https://projects.fivethirtyeight.com/congress-trump-score/")
  splash:wait(0.5)
  return splash:evaljs("memberScores")
end
') -> res

rawToChar(res) %>%
  jsonlite::fromJSON(flatten=TRUE) %>%
  purrr::map(tibble::as_tibble) -> member_scores

member_scores
# }