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By default open source Shiny server does not pass the request headers to R scripts.
What is Shiny and how request headers could be useful I explained in my previous post. If you need to access request headers in a Shiny application you have two options:
- to buy Shiny Server Professional
- to spend several minutes on upgrading free open source Shiny Server
This post is about the cheapest and fastest option — to spent less time than you would spend on paying the bill.
To demonstrate that there are no tricks, let’s start from scratch.
I use a new CentOS 7 virtual machine.
To install a Shiny server I follow the official guide https://www.rstudio.com/products/shiny/download-server/redhat-centos/. I do not need to execute more than the three commands listed in the installation guide:
sudo yum install Rsudo su - \
-c "R -e \"install.packages('shiny', repos='https://cran.rstudio.com/')\""wget https://download3.rstudio.org/centos7/x86_64/shiny-server-1.5.16.958-x86_64.rpm
sudo yum install --nogpgcheck shiny-server-1.5.16.958-x86_64.rpm
