Crop uploads, save as jpeg in Shiny w/Croppie.js

Programming
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1

I am trying to add a simple cropping feature to my Shiny app. The user should be able to upload an image, crop it, and save the cropped image to the www/ folder.

I have been able to render the image with croppie.js, but I am having trouble passing the base64 encoded image from Javascript to R with Shiny.onInputChange, and saving the image with R. The image file is saved, but it cannot be opened.

2

It sounds like the issue might be with the encoding of the image. Try using base64decode() in R to decode the base64 string before saving the image.