circuit

package
v1.4.2 Latest Latest
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 Go to latest Published: Jun 6, 2019 License: Apache-2.0 Imports: 8 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	//ReturnNil is build in fallback name
	ReturnNil = "returnnull"
	//ReturnErr is build in fallback name
	ReturnErr = "throwexception"
)

Variables

View Source 
var ErrFallbackNotExists = errors.New("fallback func does not exist")

ErrFallbackNotExists happens if fallback implementation does not exist

Functions

func FallbackErr 

func FallbackErr(inv *invocation.Invocation, finish chan *invocation.Response) func(error) error

FallbackErr set err in response

func FallbackNil 

func FallbackNil(inv *invocation.Invocation, finish chan *invocation.Response) func(error) error

FallbackNil return empty response

func Init 

func Init()

Init init functions

func RegisterFallback 

func RegisterFallback(name string, f Fallback)

RegisterFallback register custom logic

Types

type Fallback 

type Fallback func(inv *invocation.Invocation, finish chan *invocation.Response) func(error) error

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".

func GetFallback 

func GetFallback(name string) (Fallback, error)

GetFallback return function

Source Files

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