Retry delay

[jnordberg]

Would be nice to be able to be able to specify a delay between retries.

Maybe something like

protocol Job {
    func nextRetry(attempt: Int) -> Date
}
extension Job {
    func nextRetry(attempt: Int) -> Date { return Date() }
}

That would allow you to implement exponential backoff etc

[jdmcd]

Agreed, this is a good idea. Unfortunately this would be a break change (unless we can find a different way to accomplish it) so would need to wait for Queues v2.

[jnordberg]

Wouldn't the default implementation in the protocol make it backwards compatible? 🤔

[jdmcd]

@tanner0101 would need to weigh in here but I'm pretty sure any public protocol addition regardless of default implementation is semvar major

[tanner0101]

@jdmcd if it has a default impl that's fine for semver minor. (By Vapor's semver rules at least--other projects might be more strict)

[jdmcd]

Oh fantastic! In this case then I think it'd be a great addition.

[Andrewangeta]

I just had a dream about this kinda feature for queues haha. I think it'd be super helpful as well like an exponential back off sort of retry. Similar to how stripe retries failed webhooks

[jdmcd]

Totally agreed, I think this would be great! Unfortunately I don't have a ton of bandwidth to implement it myself but if anyone else wants to I'm more than happy to provide guidance + reviews!

[kacperk]

@jdmcd I think you can close this issue now