StatusDone indicates the Job is successfully finished.

StatusFailed indicates job failed to succeed even after retries.

StatusPanic indicates there was a panic during job-execution.

StatusPending indicates at-least 1 attempt is still pending.

Job represents the specification for async processing and also maintains the progress so far.

RetryableError can be returned by a JobFn to instruct the worker to attempt retry after time specified by the RetryAfter field.

Worker provides asynchronous job processing using a job-queue.

JobQueue represents a special queue that holds jobs and releases them via Dequeue() only after their RunAt time.

DequeueFn is invoked by the JobQueue for ready jobs.

JobFn is invoked by the Worker for ready jobs.