plumber R

A R snippet for plumber that answers requests for /pixel.gif with the empty GIF, decoded once at startup.

plumber R

Path

Install: install.packages("plumber")
File: plumber.R
Run: Rscript -e 'plumber::pr_run(plumber::pr("plumber.R"), port = 8080)'

# plumber.R
gif <- jsonlite::base64_dec("R0lGODlhAQABAIAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==")

#* @get /pixel.gif
#* @serializer contentType list(type = "image/gif")
function(res) {
  res$setHeader("Cache-Control", "no-store")
  gif
}

We ran this snippet and compared the bytes it returned.

Check it

curl -sI http://localhost:8080/pixel.gif

Official site: plumber