added script to send midi messages

send-midi.sh

@@ -0,0 +1,22 @@
+#!/usr/bin/env bash
+
+# author:   Daniel Sommer <daniel.sommer@velvettear.de>
+# license:  MIT
+
+dir="$(dirname $(realpath "$0"))"
+
+. "$dir/config.env"
+
+function checkVariable() {
+    [[ -z "$1" ]] && printf "${FONT_BOLD}error: ${FONT_NORMAL}no $2 given\n" && exit 1
+    ! [ "$1" -eq "$1" ] 2> /dev/null && printf "${FONT_BOLD}error: ${FONT_NORMAL}given $2 \'$1\' is not a number\n" && exit 1
+}
+
+checkVariable "$1" "midi channel"
+checkVariable "$2" "midi controller"
+checkVariable "$3" "value"
+
+url="$(""$dir"/url.sh" "/midi")"
+
+printf "> sending POST request to \'$url\'...${FONT_BOLD}"
+[ "$(curl -X POST -s -f -w "\n%{http_code}" "$url" -d "channel=$1" -d "controller=$2" -d "value=$3" | tail -n1)" -ne 200 ] && printf " error!\n" || printf " done!\n"