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88 行
3.2 KiB
88 行
3.2 KiB
% Generated by roxygen2: do not edit by hand
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% Please edit documentation in R/render-png.R
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\name{render_png}
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\alias{render_png}
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\title{Return an image (in PNG format) of the javascript-rendered page.}
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\usage{
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render_png(splash_obj = splash_local, url, base_url = NULL, width,
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height, timeout = 30, resource_timeout, wait = 0,
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render_all = TRUE, proxy, js, js_src, filters, allowed_domains,
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allowed_content_types, forbidden_content_types, viewport = "full",
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images, headers, body, http_method, save_args, load_args)
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}
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\arguments{
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\item{splash_obj}{Object created by a call to \code{\link[=splash]{splash()}}}
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\item{url}{The URL to render (required)}
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\item{base_url}{The base url to render the page with.}
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\item{width, height}{Resize the rendered image to the given width/height (in
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pixels) keeping the aspect ratio. These are optional}
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\item{timeout}{A timeout (in seconds) for the render (defaults to 30). Without
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reconfiguring the startup parameters of the Splash server (not this package)
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the maximum allowed value for the timeout is 60 seconds.}
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\item{resource_timeout}{A timeout (in seconds) for individual network requests.}
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\item{wait}{Time (in seconds) to wait for updates after page is loaded (defaults to 0).}
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\item{render_all}{If \code{TRUE} extend the viewport to include the whole webpage
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(possibly very tall) before rendering.}
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\item{proxy}{Proxy profile name or proxy URL.}
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\item{js}{Javascript profile name.}
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\item{js_src}{JavaScript code to be executed in page context.}
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\item{filters}{Comma-separated list of request filter names.}
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\item{allowed_domains}{Comma-separated list of allowed domain names. If present, Splash
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won’t load anything neither from domains not in this list nor from subdomains of
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domains not in this list.}
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\item{allowed_content_types}{Comma-separated list of allowed content types. If present,
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Splash will abort any request if the response’s content type doesn’t match any of
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the content types in this list. Wildcards are supported.}
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\item{forbidden_content_types}{Comma-separated list of forbidden content types. If
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present, Splash will abort any request if the response’s content type matches
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any of the content types in this list. Wildcards are supported.}
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\item{viewport}{View width and height (in pixels) of the browser viewport to render the
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web page. Format is “<width>x<height>”, e.g. 800x600. Default value is "full".}
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\item{images}{Whether to download images.}
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\item{headers}{HTTP headers to set for the first outgoing request.}
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\item{body}{Body of HTTP POST request to be sent if method is POST.}
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\item{http_method}{HTTP method of outgoing Splash request.}
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\item{save_args}{A list of argument names to put in cache.}
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\item{load_args}{Parameter values to load from cache}
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}
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\value{
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a \link{magick} image object
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}
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\description{
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Return an image (in PNG format) of the javascript-rendered page.
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}
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\examples{
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\dontrun{
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render_png(url = "https://httpbin.org/")
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}
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}
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\references{
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\href{http://splash.readthedocs.io/en/stable/index.html}{Splash docs}
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}
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\seealso{
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Other splash_renderers: \code{\link{execute_lua}},
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\code{\link{render_har}}, \code{\link{render_html}},
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\code{\link{render_jpeg}}, \code{\link{render_json}}
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}
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\concept{splash_renderers}
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