Posts tagged “shiny”
Update: WebFaction released today a one-click installed for node.js, obviating Step 2 below. Leaving it in here for posterity.
Shiny “makes it super simple for R users like you to turn analyses into interactive web applications that anyone can use.” It’s a powerful tool with a relatively simple syntax. It’s great for local apps — but I wanted to set up a web-based app that others could access and that wasn’t beholden to Shiny and RStudio’s excellent beta server platform.
I host this site and a few others at WebFaction — an awesome service with little to no downtime, fast servers, and relatively flexible restrictions. Getting Shiny up and running on WebFaction required a little work.
Step 1: SSH into WebFaction. Follow the instructions on their website for your specific server(s).
Step 2: Make a source directory. Download and install node.js.
mkdir src cd src wget 'http://nodejs.org/dist/v0.10.20/node-v0.10.20.tar.gz' tar -xzf node-v0.10.20.tar.gz cd node-v0.10.20 python2.7 configure --prefix=$HOME make PYTHON=python2.7 make PYTHON=python2.7 install export NODE_PATH="$HOME/lib/node_modules:$NODE_PATH" echo 'export NODE_PATH="$HOME/lib/node_modules:$NODE_PATH"' >> $HOME/.bashrc
Step 3: Download and install R.
#install R wget 'http://cran.us.r-project.org/src/base/R-3/R-3.0.2.tar.gz' tar -xzf R-3.0.2.tar.gz cd R-3.0.2 ./configure --prefix $HOME make make install
Step 4: Make a temp/tmp/temporary director.
cd $HOME mkdir tmp chmod 777 tmp TMPDIR=$HOME/tmp export TMPDIR
Step 5: Download Shiny from source and install using NPM.
git clone https://github.com/rstudio/shiny-server.git npm install -g shiny-server/
installing from NPM directly did not work — Shiny would not launch. I believe this is because you’re not allowed root access on WebFaction shared accounts.
Step 6: Launch R and install whatever packages you need.
install.packages('ggplot2') install.packages('data.table') devtools::install_github("ShinyDash", "trestletech") devtools::install_github("shiny-incubator", "rstudio")
Step 7: Want plots to work? In your Shiny app’s global.R file, set
options(bitmapType = 'cairo')
Next up: a cron job to keep a Shiny instance running or to restart it if it goes down… and putting Shiny behind some light authentication to prevent pre-release apps from general consumption.