[Question]: Migration from about polly

[nuzolx]

I realize that I haven't explained my actual use case.
All these methods "get" calls a service that sometimes encounters errors (sql timeouts) In this case, I want to open a circuit breaker in order to no longer be affected by service timeouts. In addition, I use a fallback to call another service.

[martincostello]

In addition, I use a fallback to call another service.

Sounds like you want to use a hedging strategy to do that.

[nuzolx]

@martincostello It sounds interesting, especially the fallback mode, which is a bit like what I'm describing. However, the first process is always called once, every time. Like a circuit breaker, I'd like to be able to go straight into fallback for N minutes.

What I'm trying to do is to share a circuit breaker in a single controller that allows different IO calls. This's the first part and it's easy.
When the circuit is open, I want to call a fallback with a different callback per call (within my controller).
I was able to do this with api v7, but with api v8, it's harder to imagine.

[martintmk]

@nuzolx, In your V8 example try to put fallback above the circuit breaker.

You can check these docs to understand how fallback is executed:
https://www.pollydocs.org/strategies/fallback.html#fallback-after-retries