This is a pet project.
Sample application which is a demonstration of usage for ZeroMQ in :
- Erlang
- Node.js
It was used as a sample project for my talk at Berlin.js at 18th June 2015.
Application visualizes amount and place where the Bitcoin transactions occured. Geolocation is determined based on the IP related with a relayed transaction, in the title you can lookup a transaction hash.
Basically it is a very simple UI which contains a Google Map widget, on top of that a preselected, rectangular region and controls in the top-right corner. You can redefine a region with the coordinates controls (first row it is a North-West corner and second row is a South-East corner) and you can toggle the simulation state (started / stopped) via a button.
Underneath it is a simple server and client architecture which uses ZeroMQ library as a communication mechanism. Server is written in Erlang (which use gar1t/erlang-czmq library), client is written in Node.js (and uses JustinTulloss/zeromq.node).
Aforementioned architecture can be approximated with a following diagram:
