Merge pull request #24569 from DeTeam/circuit-breaker-js

Added typings for curcuit-breaker-js

types/circuit-breaker-js/circuit-breaker-js-tests.ts

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+import CircuitBreaker = require('circuit-breaker-js');
+
+const breaker = new CircuitBreaker();
+breaker.isOpen();
+
+const options: CircuitBreaker.Options = {};
+
+let status: number = CircuitBreaker.CLOSED;
+status = CircuitBreaker.OPEN;
+
+breaker.forceOpen();
+breaker.forceClose();

types/circuit-breaker-js/index.d.ts

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+// Type definitions for circuit-breaker-js 0.0
+// Project: http://yammer.github.io/circuit-breaker-js/
+// Definitions by: Timur Amirov <https://github.com/DeTeam>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+export = CircuitBreaker;
+
+declare namespace CircuitBreaker {
+    interface Options {
+        windowDuration?: number;
+        numBuckets?: number;
+        timeoutDuration?: number;
+        errorThreshold?: number;
+        volumeThreshold?: number;
+
+        onCircuitOpen?: (m: Metrics) => void;
+        onCircuitClose?: (m: Metrics) => void;
+    }
+
+    interface Metrics {
+        totalCount: number;
+        errorCount: number;
+        errorPercentage: number;
+    }
+}
+
+declare class CircuitBreaker {
+    static OPEN: 0;
+    static HALF_OPEN: 1;
+    static CLOSED: 2;
+
+    constructor(options?: CircuitBreaker.Options);
+    run(command: () => void, fallback?: () => void): void;
+    forceClose(): void;
+    forceOpen(): void;
+    unforce(): void;
+    isOpen(): boolean;
+}

types/circuit-breaker-js/tsconfig.json

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+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": [
+            "es6"
+        ],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictNullChecks": true,
+        "strictFunctionTypes": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": [
+        "index.d.ts",
+        "circuit-breaker-js-tests.ts"
+    ]
+}

types/circuit-breaker-js/tslint.json

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+{ "extends": "dtslint/dt.json" }