toggle

supports env_variable backed toggling.

It can also be updated via a pubsub interface (tested w/ redis)

2 engines for toggle backing are included

- Local Engine (only env variable backed)
- Local Engine PubSub (env variable backed w/ updates via redis pubsub)

can be extended to support any 3rd party backing engine

func Flip(flg string, defaultFeature, newFeature interface{}, iargs ...interface{}) (responseInterfaceArray []interface{}) {}

func SetFeatureStatus(featureSignature, featureStatus string) (err error) {}

func IsActive(featureSignature string) (active bool) {}

func Close() {}

func Init(ns string, engine storageinterface.StorageEngine) {}

func ShowFeatures() map[string]*Feature {}

func RegisterFeature(featureSignature string) (err error) {}

func GetFullFeatureSignature(partialSignature string) (fullSignature string) {}

func RegisterFeatureWithStatus(featureSignature, statusValue string) (err error) {}

type Feature struct { name string Status string filter func(...interface{}) bool settings map[string]interface{} } func (s *Feature) UpdateStatus(newStatus string) {}

type DefaultEngine struct

func (s *DefaultEngine) GetFeatureStatusValue(featureSignature string) (status string, err error)

Sample usage: (./sample/main.go)

package main
import (
"fmt"
"github.com/xchapter7x/goutil/unpack"
"github.com/xchapter7x/toggle"
)
func TestA(s string) (r string) {
r = fmt.Sprintln("testa", s)
fmt.Println(r)
return
}
func TestB(s string) (r string) {
r = fmt.Sprintln("testb", s)
fmt.Println(r)
return
}
func main() {
toggle.Init("MAINTEST", nil)
toggle.RegisterFeature("test")
output := ""
_, err := tgl.Flag("test").
On(testB).
Off(testA).
Args("argstring").
Returns(&output).
Run()
fmt.Println(output)
}
// or
func mainAlt() {
toggle.Init("MAINTEST", nil)
toggle.RegisterFeature("test")
f := toggle.Flip("test", TestA, TestB, "argstring")
var output string
unpack.Unpack(f, &output)
fmt.Println(output)
}

$ test=true go run sample/main.go
testb argstring
testb argstring
$ go run sample/main.go
testa argstring
testa argstring