Retry attempts the operation until it succeeds, returns a Permanent error, or backoff completes. It ensures the operation is executed at least once.

withTimer sets a custom timer for managing delays between retries.

Is reports a match against ErrPermanent so a Permanent error can be detected with errors.Is even before Retry converts it into a RetryError.

WithBackOff configures the backoff policy used between attempts. The default is NewExponentialBackOff. Retry calls Reset on the policy before the fir

Error returns the wrapped error's message.

NewExponentialBackOff creates an instance of ExponentialBackOff using default values.

WithMaxElapsedTime limits the total wall-clock time spent retrying, measured from when Retry is called. When the limit is reached, Retry returns a *Re

AsRetryError returns the *RetryError in err's chain, or nil if there is none (including when err is nil). It is a convenience wrapper around errors.As

RetryAfter returns a RetryAfterError that tells Retry to wait the given duration before the next attempt. cause is the error that triggered the wait;

WithMaxTries limits the total number of attempts, not retries: WithMaxTries(1) runs the operation once and does not retry. When the limit is reached,

Permanent wraps err to signal that Retry should stop immediately instead of retrying. Retry then returns a *RetryError with Cause ErrPermanent and Las

Stop turns off a ticker. After Stop, no more ticks will be sent.

NewTicker returns a new Ticker containing a channel that will send the time at times specified by the BackOff argument. Ticker is guaranteed to tick a

NextBackOff calculates the next backoff interval using the formula: Randomized interval = RetryInterval * (1 ± RandomizationFactor)

NextBackOff returns the duration to wait before retrying the operation, backoff.Stop to indicate that no more retries should be made. Example usage:

Reset the interval back to the initial retry interval and restarts the timer. Reset must be called before using b.

Reset to initial state.

Unwrap returns the wrapped error.

Returns a random value from the following interval: [currentInterval - randomizationFactor * currentInterval, currentInterval + randomizationFactor

Error returns a single-line representation of the cause and last error.

Error returns a string representation of the RetryAfter error.

WithNotify sets a function called after each failed attempt that will be retried. See Notify for exactly when it fires.

Increments the current interval by multiplying it with the multiplier.

C returns the timers channel which receives the current time when the timer fires.

Start starts the timer to fire after the given duration

Stop is called when the timer is not used anymore and resources may be freed.

Permanent error bubbles up when WithMaxTries(1) https://github.com/cenkalti/backoff/issues/177

https://github.com/cenkalti/backoff/issues/184

https://github.com/cenkalti/backoff/issues/181

https://github.com/cenkalti/backoff/issues/181

Unwrap returns the cause and the last operation error so both can be matched with errors.Is and errors.As.

Unwrap returns the error that triggered the retry, if one was provided.