Is there any functionality in Node.js to stream hystrix events from Node.js services to monitor it on a dashboard.
I'm going to guess you're a Java developer who's now doing Node and looking for an equivalent solution to Hystrix and Hystrix Dashboard in the Node ecosystem. So you're looking for a circuit breaker library that supports monitoring. There's not a single solution in the Node world that does all of this, but my bet would be on:
Example code as seen on the opossum-prometheus GitHub page
const CircuitBreaker = require('opossum');
const PrometheusMetrics = require('opossum-prometheus');
// create a couple of circuit breakers
const c1 = new CircuitBreaker(someFunction);
const c2 = new CircuitBreaker(someOtherfunction);
// Provide them to the constructor
const prometheus = new PrometheusMetrics({ circuits: [c1, c2] });
//...
// Provide other circuit breaker later
const c3 = new CircuitBreaker(someOtherfunction3);
prometheus.add([C3]);
// Write metrics to the console
console.log(prometheus.metrics);
In Grafana this will look like this:
Here is a Medium article explaining how to set up this stack in more detail.