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,
}),
);