curl -k -X PATCH -d @/mnt/sda1/test.base64 'https://shms.firebaseio.com/images/image.json' > /dev/null 2>&1
http://ibuyopenwrt.com/index.php/2-uncategorised/216-curl-7-29-0-mips-openwrt-linux-gnu-has-limit-at-string-size
Upload Image to Firebase (base64)