retry multimethod

Methods

retry(times:Int=60, sleep:Any=1, logger:Fun=method, success_predicate:Any=method, title:Any='<retry>', progress_cb:Fun=method, success_cb:Fun=method, fail_cb:Any=null, body:Fun=method) Source: stdlib.ngs:5974

Retry. Executes given "body" "times" times. Throws RetryFail if all calls fail and fail_cb is not provided.

Parameters

times	Limit of times to run "body"
sleep	Either sleep in seconds between tries or Iter that returns successive sleep times in seconds
logger	Function to use to log attempts, caught body exceptions and sleep times. Defaults to stdlib's debug.
success_predicate	CANDIDATE FOR REMOVAL. Run against body results to. Says whether the attempt succeeded. Defaults to Bool.
title	Prefix strings sent to logger with this string. Defaults to "<retry>".
progress_cb	Called before each attempt with (1) current attempt number and (2) limit of attempts ("times"). Defaults to do nothing.
success_cb	Called when body succeeds with the result that comes from body. Defaults to identity function.
fail_cb	If passed, called if all attempts fail. Defaults to null.

Returns

Any. Result of success_cb or result of fail_cb.

Example

page = retry(times=10, sleep=ExpBackIter(), body={ try `curl "http://flaky-site.com"` })