Description
Shiny server functions can optionally include session as a parameter
(e.g. function(input, output, session)). The session object is an
environment that can be used to access information and functionality
relating to the session. The following list describes the items available
in the environment; they can be accessed using the $ operator (for
example, session$clientData$url_search).Value
- clientDataA
reactiveValues object that contains information about the client.
allowDataUriSchemeis a logical value that indicates whether
the browser is able to handle URIs that use thedata:scheme.
pixelratio reports the "device pixel ratio" from the web browser,
or 1 if none is reported. The value is 2 for Apple Retina displays.singletons - for internal useurl_protocol, url_hostname, url_port,
url_pathname, url_search, and url_hash_initial
can be used to get the components of the URL that was requested by the
browser to load the Shiny app page. These values are from the
browser's perspective, so neither HTTP proxies nor Shiny Server will
affect these values. The url_search value may be used with
parseQueryString to access query string parameters. clientData also contains information about each output.
output_outputId_width and output_outputId_height
give the dimensions (using offsetWidth and offsetHeight) of
the DOM element that is bound to outputId, and
output_outputId_hidden is a logical that indicates whether
the element is hidden. These values may be NULL if the output is
not bound.
item
- input
- isClosed()
- onEnded(callback)
- onFlush(func, once=TRUE)
- onFlushed(func, once=TRUE)
- onSessionEnded(callback)
- output
- reactlog
- registerDataObj(name, data, filterFunc)
- request
- sendCustomMessage(type, message)
- sendInputMessage(inputId, message)