shiny prerendered website does not render html according to route

[schloerke]

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---

❯❯ xfun::session_info('rmarkdown')
R version 3.5.3 (2019-03-11)
Platform: x86_64-apple-darwin15.6.0 (64-bit)
Running under: macOS Mojave 10.14.4

Locale: en_US.UTF-8 / en_US.UTF-8 / en_US.UTF-8 / C / en_US.UTF-8 / en_US.UTF-8

Package version:
  base64enc_0.1.3  digest_0.6.18    evaluate_0.13    glue_1.3.1      
  graphics_3.5.3   grDevices_3.5.3  highr_0.8        htmltools_0.3.6 
  jsonlite_1.6     knitr_1.22       magrittr_1.5     markdown_0.9    
  methods_3.5.3    mime_0.6         Rcpp_1.0.1       rmarkdown_1.12.6
  stats_3.5.3      stringi_1.4.3    stringr_1.4.0    tinytex_0.12    
  tools_3.5.3      utils_3.5.3      xfun_0.6         yaml_2.2.0      

Pandoc version: 2.2.1

---

Community Link: https://community.rstudio.com/t/rmarkdown-website-using-shiny-prerendered-documents/29333

Since rmarkdown::run() targets index.Rmd by default, this is the page that will remain displayed no matter which Rmd file is targeted in the URL.

Reprex Repo: https://github.com/hugo-pa/shiny_website_example

Issue line:

rmarkdown/R/shiny_prerendered.R

Lines 52 to 58 in 9923811

	# create shiny app
	shiny::shinyApp(
	ui = function(req) html,
	server = server,
	onStart = onStart,
	uiPattern = "^/$|^(/.*\\.[Rr][Mm][Dd])$"
	)

The line above is returning the original html content for the original shiny prerendered file. This does not adapt to multiple route locations that uiPattern accepts.

I don't know of a direct solution right now as ui, server, and onStart are very connected but separate arguments.

[vnijs]

Very interested in this issue. If this can be resolved I assume you then easily embed various learnr documents in a larger Rmarkdown website right?

@hugo-pa In case you haven't found an alternative solution yet ... I created a demo shiny app a few years ago with multiple pages/documents rendered using knitr (link below). Pages can have shiny components, quizzes, etc. and the page only needs to be rendered when you first visit (i.e., no re-rendering). It works well, but perhaps shiny_prerendered could still be faster?

https://github.com/vnijs/shiny-site

[xiangnandang]

I run into the same issue as @hugo-pa and @schloerke originally elaborated, trying to switch from a working website with runtime:shiny to runtime:shiny_prerendered. Has there been update to resolve this issue? It would be quite nice to use the shiny_prerendered version on multipage website.

[mrworthington]

Just checking in on the status of this issue. Have run into this a few times now. The prerendered runtime is pretty amazing and would love to be able to include it as part of an entire rmarkdown website.

[matthewhirschey]

Any updates on this? Seems like a whole community of learnr champions are waiting to build amazing learning portals when this is solved.