R Shiny/ Restful Api Communication

r rest shiny shiny-server
user2987739 picture user2987739 · Aug 13, 2014 · Viewed 11.3k times · Source

I have a shiny app that takes an input file in Json Runs it through a classifier and returns a classified Json object. I want the app to be able to communicate with an API. I want the API to post a file to the Shiny App which will do its work and return a classified object. Basically I want the Shiny app to sit in the background until a file is posted and then do its work. I know that I can use GET from the httr package to get a file from a url. I can put this in the shiny.server file which is fine if I know the file name for the get command

However the filenames coming from the API will be different. So is there any way that I can make this dynamic according to the Post request that comes from the API.

Answer

Guybrush picture Guybrush · Mar 30, 2017

If you do not have to use Shiny, you can use openCPU. OpenCPU provides each of your R packages as REST service automatically. I work with OpenCPU and it works fine! It is the easiest way to use R from another program.

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