This is learning material for blockchain app dev tutorial "Syscoin + 0MQ + Node.js Towards Real Time Blockchain Apps".
https://www.youtube.com/watch?v=y8Frcabtdmo&feature=youtu.be
This tutorial is an elaboration and extension to content provided in a similar blog tutorial by Justin Silver, with intention to clarify some aspects and provide extended working examples to kickstart familiarity with Syscoin+ZMQ+Node.js
https://www.justinsilver.com/technology/cryptocurrency/syscoin-zmq-node-js-realtime-blockchain/
https://www.justinsilver.com/technology/cryptocurrency/syscoin-node-js-blockchain-apps/