Package Exports

backoff-rxjs

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Readme

backoff-rxjs

A collection of helpful RxJS operators to deal with backoff strategies (like exponential backoff) Angular-in-Depth article about this library is at https://blog.angularindepth.com/power-of-rxjs-when-using-exponential-backoff-a4b8bde276b0

intervalBackoff

Basic interval backoff

intervalBackoff works similiarly to interval except that it doubles the delay between emissions every time.

name	type	attirbute	description
config	number \| IntervalBackoffConfig	required	Can take number as initial interval or a config with initial interval, optional max Interval and optional backoff delay function (exponential by default)

interval is especially useful for periodic polls that are reset whenever user activity is detected:

fromEvent(document, 'mousemove').pipe(
  // There could be many mousemoves, we'd want to sample only
  // with certain frequency
  sampleTime(LOAD_INTERVAL_MS),

  // Start immediately
  startWith(null),

  // Resetting exponential interval
  switchMapTo(
    intervalBackoff({
      initialInterval: LOAD_INTERVAL_MS,
      maxInterval: MAX_INTERVAL_MS
    })
  )
);

retryBackoff

Retry Backoff Exponential Image

name	type	attirbute	description
config	number \| RetryBackoffConfig	required	Can take number as initial interval or a config with initial interval, optional max Interval, optional max number of retry attempts, optional function to cancel reties and optional backoff delay function (exponential by default)