Are there any client-side persistent retry solutions already available in case of a missing connection?

[mainrs]

Maybe some of you are aware of crates that implement this functionality. I do not need general retry strategies, but a persistent layer that stores failed requests and tries them later on.

Do you know of any crates that already do that? Thanks!

[seanmonstar]

Could you elaborate on how what you want is different from a "general retry strategy"? I most likely would reach for the new retry support in reqwest.

[mainrs]

As far as I could tell, the "general retry strategy" just retries so send the same request after a time offset.

What I am looking for is a persistent layer that even works if my application gets closed, shuts down, or there is no internet connection available. If a request fails, it is stored locally (database, file, ...). reqwest would still retry using the "general retry strategy", and once it succeeds, it would delete the locally stored request.

I am mostly looking for a solution that helps with scenarios where the user does not have a working internet connection. In those cases, the persisted request could be periodically retried until succeeded.

I didn't find anything that matches this scenario, so that's why I asked, before re-inventing the wheel! But it looks like I'll have to write a custom implementation, maybe a reqwest-middleware that implements this logic...