service-breaker

Circuit breaker for calling another services

Install

$ npm install service-breaker

Usage

const ServiceBreaker = require('service-breaker')
const config = {
    services: ['transaction', 'auth']
}

const serviceBreaker = new ServiceBreaker({
    config,
    timeoutDuration: 50000, // default 100000
    maxFailures: 5 // default 10
})

serviceBreaker.invoke({
    execute: request,
    fallback: fallback
}, 'transaction')

serviceBreaker.invoke({
    execute: request,
    fallback: fallback
}, 'auth')

serviceBreaker.invoke({
    execute: request,
    fallback: fallback
}, 'another', function (error) {
    console.log(error)
})

function request(params) {
    console.log(`${params} is ok`)
}

function fallback(params) {
    console.log(`Cannot reach ${params} service`)
}

API

new ServiceBreaker

ServiceBreaker([config, timeoutDuration, maxFailures])

invoke

serviceBreaker.invoke([execute, fallback], serviceName, callback)

callback is optional, callback parameter is an error.

License

MIT @Aldi Priya Perdana