Setup webR compatible infrastructure in your Shiny package project. This package is based on George Stagg's work around {webR}, particularly
this repository for deploying Shiny apps on Netlify.
What does {golem4Shiny}? Essentially, it:
- Copies relevant part of the
{golem}app (R,inst) into the folder of your choice, default being./webR. - Tweaks some of the
{golem}copied files. Importantly, this does not impact the main app files, only the copy located in./webR. - Adds a slightly modified version of the JS technology to run webR and adapt with Shiny, originally provided by George Stagg.
- Adds a makefile to run the app locally and test.
An example app is deployed here at https://golem-webr.rinterface.com/.
To get {webR4Shiny}:
remotes::install_github("RinteRface/webR4Shiny")Note that pre-compiled packages for WebAssembly are downloaded from https://webr-cran.rinterface.com/. This repository only contains
{shiny}, Shiny-related packages (httpuv, ...) and few RinteRface packages such as {bs4Dash}.
If you miss your favorite package, raise an issue here. It is also very possible that some package will not be available here for technical reasons.
{webR4Shiny} is designed to work for {golem} powered Shiny apps.
Under the project root, run:
init_shiny_webr()This installs all files needed to have a webR compatible Shiny app by default
under ./webr.
Each time you change the code within your package (R, inst, ...), you have to run:
update_shiny_webr("<WEBR_PATH>")<WEBR_PATH> being either the default location, ./webR or any valid
alternative of your choice.
Finally, to cleanup the webR installation run:
remove_shiny_webr("<WEBR_PATH>")