let a few services continuously running (daemon) using plumber.

[sahilseth]

What would be the recommended way to create a daemon using plumber ?

## if plum is a script which contain all the commands
plum.R
## running from terminal using & should work
Rscript plum.R &

issues
Issue is what if I press this twice, and there are two conflicting scripts running on the same port.
What is someone else does the same.

Possible to check all plumber services running (given a port)?

[trestletech]

Thanks for opening this. This is something I'm actively thinking about. I don't think the solution belongs in plumber, since R's forte is not load balancing and managing processes, but I have a poked around at a couple of other tools that can be used to accomplish at least some of these purposes. I'll get them written up shortly.

[trestletech]

I've started writing this up here: http://plumber.trestletech.com/docs/hosting/

[rauno56]

You can set the port as a command line argument to your bash script:

#!/bin/bash

port=${1:-9002}

kill $(ps aux | grep "$port" | grep plumb | awk '{print $2}')
R --vanilla -e "library(plumber); pr <- plumb('query.api.r'); pr\$run(port=$port)"

kill makes sure you don't get the "port already in use"-error - Sometimes the port will stay in use even after the actual process is shut down.

EDIT. Going through the documentation I realized that any of my solution is original. Removed most of the parts from the official documentation.

[trestletech]

Between the above link and http://plumber.trestletech.com/docs/docker/, I'm calling this closed.