shinyFiles (version 0.3.2)

shinyFileChoose: Creates a reactive expression that updates the filesystem view

Description

This function sets up the required connection to the client in order for the user to navigate the filesystem. For this to work a matching button should be present in the html, either by using shinyFilesButton() or adding it manually. See shinyFilesButton for more information on this.

Usage

shinyFileChoose(input, inputId, updateFreq = 2000, session = NULL, ...)

Arguments

input

The input object of the shinyServer() call (usaully input)

inputId

The same ID as used in the matching call to shinyFilesButton or as the id attribute of the button, in case of a manually defined html.

updateFreq

The time in milliseconds between file system lookups. This determines the responsiveness to changes in the filesystem (e.g. addition of files or drives)

session

The session object of the shinyServer call (usually 'session'). Used to terminate file system lookups when the client leaves.

...

Arguments to be passed on to fileGetter

Value

• A reactive expression that should be assigned to the output object of the shinyServer() call. The output name it should be assigned to have to match the provided inputId

Details

Restrictions on the access rights of the client can be given in several ways. The root parameter specifies the starting position for the filesystem as presented to the client. This means that the client can only navigate in subdirectories of the root. Paths passed of to the restrictions parameter will not show up in the client view, and it is impossible to navigate into these subdirectories. The filetypes parameter takes a vector of of file extensions to filter the output on, so that the client is only presented with these filetypes. The hidden parameter toggles whether hidden files should be visible or not.

See Also

Other shinyFiles: parseFilePaths; shinyFilesButton; shinyFilesExample

Examples

ui <- shinyUI(bootstrapPage(
    shinyFilesButton('files', 'File select', 'Please select a file', FALSE)
))
server <- shinyServer(function(input, output, session) {
    output$files <- shinyFileChoose(input, 'files', session=session,
    roots=c(wd='.'), filetypes=c('', '.txt'))
})

runApp(list(
    ui=ui,
    server=server
))