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shinyhttr

Travis build status AppVeyor build status CRAN status

The goal of shinyhttr is to integrate httr::progress with shinyWidgets::progressBar.

In practice, the difference will be

# from this
httr::GET("http://download.com/large_file.txt", 
          progress())


# to this
httr::GET("http://download.com/large_file.txt", 
          progress(session, id = "my_progress_bar1"))
gif_progress_example.gif

Installation

From CRAN:

install.packages("shinyhttr")

From github:

devtools::install_github("curso-r/shinyhttr")

Example

library(shiny)
library(shinyWidgets)
library(httr)
library(shinyhttr)

ui <- fluidPage(

  sidebarLayout(

    NULL,

    mainPanel(
      actionButton('download', 'Download 100MB file...'),
      tags$p("see R console to compare both progress bars."),
      progressBar(
        id = "pb",
        value = 0,
        title = "",
        display_pct = TRUE
      )
    )
  )
)

server <- function(input, output, session) {
  observeEvent(input$download, {
    GET(
      url = "https://speed.hetzner.de/100MB.bin",
      shinyhttr::progress(session, id = "pb") # <- the magic happens here. progress() now has session and id args
    )
  })
}

shinyApp(ui, server)

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.
Health stats visible at Monitor.