Consider using asynchronous evaluation in Shiny

[MikeKSmith]

Joe Cheng (RStudio, Shiny lead) is implementing asynchronous Shiny evaluation using promises and will be releasing this in a future version of shiny. It might be a useful method to include in shinyMixR since it looks like it will complement your current method of sending computation to a separate R session.

It might facilitate workflows / pipelines for nlmixr where the computational aspect takes time.

https://shiny.rstudio.com/articles/async.html

[RichardHooijmaijers]

This looks very promising indeed! I did some initial testing but currently I could not get it working with nlmixr. The current method has the added value of saving the external script and output. This make it easy to pick up in the app and easy bug tracing. However I will keep my eye on this package and evaluate it in a later stage for the interface