Top 3 Examples of "opossum in functional component" in JavaScript
Dive into secure and efficient coding practices with our curated list of the top 10 examples showcasing 'opossum' in functional components in JavaScript. Our advanced machine learning engine meticulously scans each line of code, cross-referencing millions of open source libraries to ensure your implementation is not just functional, but also robust and secure. Elevate your React applications to new heights by mastering the art of handling side effects, API calls, and asynchronous operations with confidence and precision.
import * as fs from 'fs';
import * as CircuitBreaker from 'opossum';
import { promisify } from 'util';
let breaker: CircuitBreaker;
const callbackNoArgs = async () => console.log('foo');
CircuitBreaker.isOurError(new Error()); // $ExpectType boolean
breaker = new CircuitBreaker(async () => true, {
timeout: 1000,
maxFailures: 50,
resetTimeout: 10,
rollingCountTimeout: 500,
rollingCountBuckets: 20,
name: 'test',
group: 'group',
rollingPercentilesEnabled: true,
capacity: 1,
errorThresholdPercentage: 1,
enabled: true,
allowWarmUp: true,
volumeThreshold: 1,
cache: true,constructor () {
super();
// state
this.state = { requestState: [] };
// binds
this.makeRequest = this.makeRequest.bind(this);
this.makeNode = this.makeNode.bind(this);
this.clearNodes = this.clearNodes.bind(this);
// circuit breaker settings
this.circuitBreakerOptions = { timeout: 500, maxFailures: 3, resetTimeout: 5000 };
this.route = 'http://localhost:3000/flakeyService';
this.circuit = circuitBreaker(() => $.get(this.route), this.circuitBreakerOptions);
// circuit breaker events
this.circuit.fallback(() =>
({ body: `${this.route} unavailable right now. Try later.` }));
this.circuit.on('success', (result) =>
this.makeNode({ state: `SUCCESS`, body: `${JSON.stringify(result)}` }));
this.circuit.on('timeout', () =>
this.makeNode({ state: `TIMEOUT`, body: `${this.route} is taking too long to respond.` }));
this.circuit.on('reject', () =>
this.makeNode({ state: `REJECTED`, body: `The breaker for ${this.route} is open. Failing fast.` }));
this.circuit.on('open', () =>
this.makeNode({ state: `OPEN`, body: `The breaker for ${this.route} just opened.` }));
this.circuit.on('halfOpen', () =>
this.makeNode({ state: `HALF_OPEN`, body: `The breaker for ${this.route} is half open.` }));
this.circuit.on('close', () =>
this.makeNode({ state: `CLOSE`, body: `The breaker for ${this.route} has closed. Service OK.` }));return (url, options) => {
const { host } = new URL(url);
let circuitBreaker = circuitBreakers[host];
if (!circuitBreaker) {
const circuitBreakerOptions = {
name: host,
timeout: 5000,
resetTimeout: 10000,
};
circuitBreakers[host] = new CircuitBreaker(fetch, circuitBreakerOptions);
circuitBreaker = circuitBreakers[host];
}
return !options
? circuitBreaker.fire(url)
: circuitBreaker.fire(url, options);
};
}