Circuit breaker


go chassis allows you to define how to handle errors, if a remote call fails


1.Implement your fallback logic

//Fallback defines how to return response if remote call fails
//a implementation should return a closure to handle the error
//in this closure, if you fallback logic should handle the original error,
//you can return a fallback error to replace the original error
//you can assemble invocation.Response on demand
//in summary the closure defines, if err happens, how to handle it.
type Fallback func(inv *invocation.Invocation, finish chan *invocation.Response) func(error) error

2.Register function to go chassis

circuit.RegisterFallback("your_fallback", f)

3 operate circuit_breaker.yaml to use custom fallback

      policy: your_fallback