How to Kill rap2 Service Started with npm start
When using npm start to launch rap2, the service cannot be closed normally. This is because it runs as a pm2 background process and needs to be killed manually.
Solution: Kill the rap2 process along with pm2. Here is an example using rap2-delos:

Script (modify the paths and other info as needed):
#!/bin/bash
Id=`ps -ef|grep /home/jxkj/rap2-delos |grep -v grep|grep -v PPID|awk '{ print $2}'`
Id2=`ps -ef|grep /usr/local/bin/http-server |grep -v grep|grep -v PPID|awk '{ print $2}'`
Id3=`ps -ef|grep pm2 |grep -v grep|grep -v PPID|awk '{ print $2}'`
echo "…………………………………………………………………….."
echo "Stop rap2-delos:"
kill -9 $Id $Id2 $Id3
echo "Done"