shinylogs

Logging tool for Shiny applications: record inputs or outputs changes, and infos about user’s session. All recording is done client-side to not slow down the application and occupy the server.

version cran checks Lifecycle: stable Project Status: Active The project has reached a stable, usable state and is being actively developed. Codecov test coverage R build status

Installation

You can install the released version of shinylogs from CRAN with:

install.packages("shinylogs")

And the development version from GitHub with:

# install.packages("remotes")
remotes::install_github("dreamRs/shinylogs")

Usage

Call the main function track_usage in server part of application, and specify where to write logs:

library(shinylogs)

track_usage(storage_mode = store_json(path = "logs/"))

The function will record :

See the vignette for more details (?vignette("shinylogs")) or the online version.

Examples

Some example of what is recorded with logs from applications available on our Shiny-Server: http://shinyapps.dreamrs.fr/

Number of connections per applications:

Number of connections over time :

Which tabs (from sidebar in {shinydashboard}) in shinyWidgets gallery are the most seen :

User-agent is recorded per connection and can be parsed with uaparserjs : (unique users are not registered as we use the open source version of shiny-server)

Development

This package use {packer} to manage JavaScript assets, see packer’s documentation for more.

Install nodes modules with:

packer::npm_install()

Modify srcjs/exts/shinylogs.js, then run:

packer::bundle()

Re-install R package and try track_usage() function.