See https://github.com/zerotier/ZeroTierOne/issues/608

test_zt.sh

# must have ZEROTIER_API_KEY exported

accept='{"rulesSource": "accept;"}'

echo "$accept" | curl --silent -H "Authorization: Bearer $ZEROTIER_API_KEY" -d @- https://my.zerotier.com/api/network/ -o net.json

# get the id from the output using https://stedolan.github.io/jq/
ID=$(jq -r .id < net.json)

echo
echo created network $ID

assert_rule() {
  TYPE=$(jq -r .config.rules[0].type < $1)
  if $([[ "$TYPE" = "$2" ]]); then
    echo "$1's first rule was $2 (ok)"
  else
    echo "FAILED: $1's first rule was meant to be $2"
  fi
}

# verify there's exactly one rule compiled
assert_rule net.json "ACTION_ACCEPT"

drop='{"rulesSource": "drop;"}'

# update the network
echo "$drop" | curl --silent -H "Authorization: Bearer $ZEROTIER_API_KEY" -d @- https://my.zerotier.com/api/network/$ID -o net2.json
# fails
# {"type":"internal","message":"Internal error loading network."}

echo
echo "response from update call:"
cat net2.json; echo

echo
assert_rule net2.json "ACTION_DROP"

echo 
echo "deleting network $ID"
curl --silent -H "Authorization: Bearer $ZEROTIER_API_KEY" -X DELETE https://my.zerotier.com/api/network/$ID >/dev/null

rm net.json net2.json