This library provides a simple utility for performing an action with retries. TryTryAgain is thread-safe and takes care of handling backoff and expired contexts. The library provides configuration for the backoff strategy, retry counts, and a callback for errors.

A retrier is created with the specified options for maxAttempts, backoffFunc, and onErrorFunc. Then you simply call Do, providing a function which wraps the action to be performed. This function should return an error and a boolean to indicate whether the error is retriable or not.

Defaults:

• The default max attempts is 3
• The default backoff strategy is exponential
• The default onError callback does nothing

Here is a trivial example:

r := NewRetrier(
    WithMaxAttempts(4),
    WithOnError(func(err error) { fmt.Println(err.Error()) }),
    WithBackoff(exponentialBackoff),
)

err := r.Do(ctx, func() (error, bool) {
    return fmt.Errorf("something went wrong"), true
})

More detailed examples can be found in examples