R Shiny - downloadHandler

[pieterjanvc]

Hi,

Could you please provide a reprex of the issue. A reprex consists of the minimal code and data needed to recreate the issue you're having. You can find instructions how to build and share one here:

Shiny debugging and reprex guide

Shiny issues can be challenging to resolve relative to other problems with your code or statistical methods. Shiny apps are often large, complex projects with interacting files. When seeking help from others it is considered polite to: First, do your best to work through RStudio's debugging tools to diagnose your issue on your own. Often those shiny logs and tracebacks are useful to others trying to help out. Second, strive to minimize the effort required to replicate your issue. You can do this with a reproducible example ("reprex"). Shiny Debugging Errors in Shiny code can be difficult to track down. If you don't know where your problem is coming from, you can track it down with some o…

From what I see it seems your code is a bit bizarrely organised with output functions within the downloadHandler. I can't make much sense of it. Also, why would you print a data frame to a picture instead of a csv? You cannot select data from a picture, so that's not a great way to store it. I'm sure you have a reason though, just curious...

PJ