Saga Compensation

A saga executes steps in order. If a step fails, the system runs compensating actions for all previous successful steps in reverse order.

Given the ordered steps with their success status, return the names of steps that must be compensated, in the order they should run.

If all steps succeed, return nil.

Types

type Step struct {
    Name    string
    Success bool
}

Function signature

func SagaCompensations(steps []Step) []string

Example

steps = [A:true, B:true, C:false, D:false]
output = ["B", "A"]

Notes

• Only the first failure triggers compensation.