http-resilient-executor

http-resilient-executor

Helper for creating retry policies , circuit breaker for functions and external requests

Config

Name	Description
httpResilienceCBHalfOpenAfterMS	Indicates the Time CircuitBreaker to be in half open state
httpResilienceRetryCount	Retry count for requests
httpResilienceCBConsecutiveThreshold	Maximum attempts to open CircuitBreaker

For logger configuration properties see the logger documentation

Usage

// init ResilientExecutor instance (should use 1 instance per app)
import { ResilientExecutor } from 'http-resilient-executor';

const config = {
  /** logger configuration */
  logger: { logLevel: 'cli', logStyle: 'debug', appName: 'nodejs-commons',moduleName: 'ResilientExecutor' },

  /** After 10 seconds the CB will be half open state */
  httpResilienceCBHalfOpenAfterMS: 10 * 1000,

  /** After 5 consecutive failed requests, the CB will be open */
  httpResilienceCBConsecutiveThreshold: 5,

  /**  Retry count for failed requests */
  httpResilienceRetryCount: 3,
};

const resilientExec = new ResilientExecutor(config);

/** use resilientExecutor to wrap functions and api calls */
/** to wrap function */
await resilientExec.execute(testMock);

/** to wrap api */

await this.executor.execute(() =>
        axios.post(this.authUrl, params,
        {
          headers: { 'Content-Type': 'application/x-www-form-urlencoded'},
          auth: credentials,
        }),
      );