Backend_snippet

#! /usr/bin/env bash

#debugging on
set -x
# Output "device discovery" information on stdout:
if test "$#" = "0"
then echo 'network barcoder "Unknown" "barcoder"'
  exit 0
fi

SINGLE=$(egrep -o "\bStrekkode [0-9]{14}\b" "$6")
if [[ ! -z $SINGLE ]]
  then
    DATA="${SINGLE//Strekkode /}"
  else
    DATA=$(egrep -o "\b[0-9]{14}\b" "$6")
fi

while read -r line ; do
  JSON=$(curl -L "http://koha1.deichman.no:8081/api/v1/labelgenerator/$line")
  FILENAME="$TMPDIR$line.pdf"
  if [ "$JSON" != '{"error":"No items found"}' ]
    then
      java -jar labelpdf-all-1.0-SNAPSHOT.jar \
        --data="$JSON"\
        --output="$FILENAME" \
        && lpr -P DYMO_LabelWriter_450___raspberrypi -o media=Custom.36x89mm "$FILENAME" \
        && rm "$FILENAME" 
  fi
done <<< "$DATA"