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opossum - npm Package Compare versions
Comparing version 6.4.0 to 7.0.0
@@ -1,2 +0,2 @@ | ||
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this[E].stats}},{key:"toJSON",value:function(){return{state:{name:this.name,enabled:this.enabled,closed:this.closed,open:this.opened,halfOpen:this.halfOpen,warmUp:this.warmUp,shutdown:this.isShutdown},status:this.status.stats}}},{key:"enabled",get:function(){return this[k]}},{key:"warmUp",get:function(){return this[P]}},{key:"volumeThreshold",get:function(){return this[_]}},{key:"fallback",value:function(e){var t=e;return e instanceof f&&(t=function(){return e.fire.apply(e,arguments)}),this[j]=t,this}},{key:"fire",value:function(){for(var e=arguments.length,t=new Array(e),n=0;n<e;n++)t[n]=arguments[n];return this.call.apply(this,[this.action].concat(t))}},{key:"call",value:function(e){var t=this;if(this.isShutdown){var n=q("The circuit has been shutdown.","ESHUTDOWN");return Promise.reject(n)}for(var r=arguments.length,o=new Array(r>1?r-1:0),i=1;i<r;i++)o[i-1]=arguments[i];var u,c=Array.prototype.slice.call(o);if(this.emit("fire",c),void 0!==T.get(this))return 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i=Date.now()-o;R(e,t,u,c,i,n,r)}}))}catch(e){t.semaphore.release();var a=Date.now()-o;R(e,t,u,c,a,n,r)}}else{var l=Date.now()-o,p=q("Semaphore locked","ESEMLOCKED");t.emit("semaphoreLocked",p,l),R(p,t,u,c,l,n,r)}}))}},{key:"clearCache",value:function(){T.set(this,void 0)}},{key:"healthCheck",value:function(e,t){var n=this;if(t=t||5e3,"function"!=typeof e)throw new TypeError("Health check function must be a function");if(isNaN(t))throw new TypeError("Health check interval must be a number");var r=function(t){e.apply(n).catch((function(e){n.emit("healthCheckFailed",e),n.open()}))},o=setInterval(r,t);"function"==typeof o.unref&&o.unref(),r()}},{key:"enable",value:function(){this[k]=!0}},{key:"disable",value:function(){this[k]=!1}}])&&c(n.prototype,r),o&&c(n,o),Object.defineProperty(n,"prototype",{writable:!1}),f}(y);function R(e,t,n,r,i,u,c){var s;if(clearTimeout(n),(s=t.options).errorFilter.apply(s,[e].concat(o(r))))t.emit("success",e,i);else{!function(e,t,n,r){if(e.emit("failure",t,r,n),e.warmUp)return;var o=e.stats;if(o.fires<e.volumeThreshold&&!e.halfOpen)return;(o.failures/o.fires*100>e.options.errorThresholdPercentage||e.halfOpen)&&e.open()}(t,e,r,i);var a=N(t,e,r);if(a)return u(a)}c(e)}function N(e,t,n){if(e[j])try{var r=e[j].apply(e[j],[].concat(o(n),[t]));return e.emit("fallback",r,t),r instanceof Promise?r:Promise.resolve(r)}catch(e){return Promise.reject(e)}}function q(e,t){var n=new Error(e);return n.code=t,n[L]=!0,n}var B=function(){return"xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx".replace(/[xy]/g,(function(e){var t=16*Math.random()|0;return("x"===e?t:3&t|8).toString(16)}))};e.exports=M}).call(this,n(0))},function(e,t){var n,r,o=e.exports={};function i(){throw new Error("setTimeout has not been defined")}function u(){throw new Error("clearTimeout has not been defined")}function c(e){if(n===setTimeout)return 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h(e,t)),1!==a.length||f||c(y)},h.prototype.run=function(){this.fun.apply(null,this.array)},o.title="browser",o.browser=!0,o.env={},o.argv=[],o.version="",o.versions={},o.on=m,o.addListener=m,o.once=m,o.off=m,o.removeListener=m,o.removeAllListeners=m,o.emit=m,o.prependListener=m,o.prependOnceListener=m,o.listeners=function(e){return[]},o.binding=function(e){throw new Error("process.binding is not supported")},o.cwd=function(){return"/"},o.chdir=function(e){throw new Error("process.chdir is not supported")},o.umask=function(){return 0}},function(e,t){e.exports=function(e){return e&&"object"==typeof e&&"function"==typeof e.copy&&"function"==typeof e.fill&&"function"==typeof e.readUInt8}},function(e,t){"function"==typeof Object.create?e.exports=function(e,t){e.super_=t,e.prototype=Object.create(t.prototype,{constructor:{value:e,enumerable:!1,writable:!0,configurable:!0}})}:e.exports=function(e,t){e.super_=t;var n=function(){};n.prototype=t.prototype,e.prototype=new n,e.prototype.constructor=e}},function(e,t,n){"use strict";(function(t){var r=n(10); | ||
| /*! | ||
@@ -3,0 +3,0 @@ * The buffer module from node.js, for the browser. |
@@ -88,2 +88,5 @@ 'use strict'; | ||
| * `cacheMiss` reflect cache activity.) Default: false | ||
| * @param {AbortController} options.abortController this allows Opossum to | ||
| * signal upon timeout and properly abort your on going requests instead of | ||
| * leaving it in the background | ||
| * | ||
@@ -156,2 +159,8 @@ * | ||
| if (options.abortController && typeof options.abortController.abort !== 'function') { | ||
| throw new TypeError( | ||
| 'AbortController does not contain `abort()` method' | ||
| ); | ||
| } | ||
| this[VOLUME_THRESHOLD] = Number.isInteger(options.volumeThreshold) | ||
@@ -315,3 +324,3 @@ ? options.volumeThreshold | ||
| * Emitted when the breaker opens because the action has | ||
| * failed more than `options.maxFailures` number of times. | ||
| * failure percentage greater than `options.errorThresholdPercentage`. | ||
| * @event CircuitBreaker#open | ||
@@ -604,2 +613,5 @@ */ | ||
| handleError(error, this, timeout, args, latency, resolve, reject); | ||
| if (this.options.abortController) { | ||
| this.options.abortController.abort(); | ||
| } | ||
| }, this.options.timeout); | ||
@@ -788,5 +800,3 @@ } | ||
| const errorRate = stats.failures / stats.fires * 100; | ||
| if (errorRate > circuit.options.errorThresholdPercentage || | ||
| stats.failures >= circuit.options.maxFailures || | ||
| circuit.halfOpen) { | ||
| if (errorRate > circuit.options.errorThresholdPercentage || circuit.halfOpen) { | ||
| circuit.open(); | ||
@@ -793,0 +803,0 @@ } |
| { | ||
| "name": "opossum", | ||
| "version": "6.4.0", | ||
| "version": "7.0.0", | ||
| "author": "Red Hat, Inc.", | ||
@@ -9,3 +9,3 @@ "license": "Apache-2.0", | ||
| "prebuild": "npm run pretest", | ||
| "build": "./test/browser/generate-index.sh && npm run build:browser && npm run build:docs", | ||
| "build": "./test/browser/generate-index.sh && NODE_OPTIONS=--openssl-legacy-provider npm run build:browser && npm run build:docs", | ||
| "build:browser": "webpack --config=config/webpack.config.js", | ||
@@ -44,5 +44,5 @@ "build:docs": "npm run build:docs:html && npm run build:docs:markdown", | ||
| "coveralls": "^3.1.1", | ||
| "documentation": "^13.2.5", | ||
| "documentation": "^14.0.0", | ||
| "eslint": "^8.6.0", | ||
| "eslint-config-semistandard": "^16.0.0", | ||
| "eslint-config-semistandard": "^17.0.0", | ||
| "eslint-config-standard": "^17.0.0", | ||
@@ -52,10 +52,10 @@ "eslint-plugin-import": "^2.26.0", | ||
| "eslint-plugin-node": "^11.1.0", | ||
| "eslint-plugin-promise": "^6.0.0", | ||
| "eslint-plugin-promise": "^6.0.1", | ||
| "eslint-plugin-standard": "^5.0.0", | ||
| "husky": "^7.0.4", | ||
| "husky": "^8.0.1", | ||
| "nyc": "~15.1.0", | ||
| "opener": "1.5.2", | ||
| "serve": "^13.0.2", | ||
| "serve": "^14.0.1", | ||
| "tap-spec": "~5.0.0", | ||
| "tape": "~5.5.2", | ||
| "tape": "~5.6.1", | ||
| "webpack": "~4.46.0", | ||
@@ -75,5 +75,5 @@ "webpack-cli": "~4.9.2" | ||
| "engines": { | ||
| "node": "^18 || ^16 || ^14 || ^12" | ||
| "node": "^18 || ^16 || ^14" | ||
| }, | ||
| "support": true | ||
| } |
@@ -23,3 +23,3 @@ # opossum | ||
| | Issue tracker: | https://github.com/nodeshift/opossum/issues | | ||
| | Engines: | Node.js >= 10 | | ||
| | Engines: | Node.js >= 14 | | ||
@@ -53,2 +53,40 @@ ## Usage | ||
| ### AbortController support | ||
| You can provide an `AbortController` (https://developer.mozilla.org/en-US/docs/Web/API/AbortController, https://nodejs.org/docs/latest/api/globals.html#globals_class_abortcontroller) for aborting on going request upon | ||
| reaching Opossum timeout. | ||
| ```javascript | ||
| const CircuitBreaker = require('opossum'); | ||
| const http = require('http); | ||
| function asyncFunctionThatCouldFail(abortSignal, x, y) { | ||
| return new Promise((resolve, reject) => { | ||
| http.get( | ||
| 'http://httpbin.org/delay/10', | ||
| { signal: abortSignal }, | ||
| (res) => { | ||
| if(res.statusCode < 300) { | ||
| resolve(res.statusCode); | ||
| return; | ||
| } | ||
| reject(res.statusCode); | ||
| } | ||
| ); | ||
| }); | ||
| } | ||
| const abortController = new AbortController(); | ||
| const options = { | ||
| abortController, | ||
| timeout: 3000, // If our function takes longer than 3 seconds, trigger a failure | ||
| }; | ||
| const breaker = new CircuitBreaker(asyncFunctionThatCouldFail, options); | ||
| breaker.fire(abortController.signal) | ||
| .then(console.log) | ||
| .catch(console.error); | ||
| ``` | ||
| ### Fallback | ||
@@ -343,5 +381,3 @@ | ||
| const errorRate = stats.failures / stats.fires * 100; | ||
| if (errorRate > circuit.options.errorThresholdPercentage || | ||
| stats.failures >= circuit.options.maxFailures || | ||
| circuit.halfOpen) { | ||
| if (errorRate > circuit.options.errorThresholdPercentage || circuit.halfOpen) { | ||
| circuit.open(); | ||
@@ -356,3 +392,3 @@ } | ||
| ``` | ||
| | fires: 2 | fires: 1 | fires: 3 | fires: 0 | fires: 9 | fires: 3 | fires: 2 | fires: 0 | fires: 8 | fires: 0 | | ||
| | fires: 2 | fires: 1 | fires: 3 | fires: 0 | fires: 9 | fires: 3 | fires: 2 | fires: 0 | fires: 4 | fires: 0 | | ||
| | fails: 0 | fails: 0 | fails: 0 | fails: 0 | fails: 0 | fails: 3 | fails: 0 | fails: 0 | fails: 0 | fails: 0 | | ||
@@ -359,0 +395,0 @@ ``` |
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Found 1 instance in 1 package
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Improved metrics
- Total package byte prevSize
- increased by0.67%
504424
- Lines of code
- increased by0.43%
4234
- Number of lines in readme file
- increased by8.47%
461
No dependency changes