grc

grc

Usage

Remote Configuration

Define the configuration structure with default values

type TestConfig struct {
	IntVal   int               `json:"int_val" default:"8080"`
	StrVal   string            `default:"test"`
	SliceVal []int             `default:"1,2,3,4,ee"`
	MapVal   map[string]string `default:"a:aa,b:bb,c,d"`
}

Create grc instance

rc, err := grc.New(context.TODO(), grc.EtcdV3, "127.0.0.1:2379", "username", "password")
if err != nil {
	//return
}

Subscribe configuration

path := "/test/conf"
err := rc.SubscribeConf(path, TestConfig{})
if err != nil {
	//return
}

Use configuration

conf := rc.GetConf(path).(TestConfig)

• The return type of rc.GetConf(path) is the same as the second parameter passed into rc.SubscribeConf.
• The type can also be a pointor:

err := rc.SubscribeConf(path, &TestConfig{})
if err != nil {
	//return
}

conf := rc.GetConf(path).(*TestConfig)

Service Discovery

Register node

node := "127.0.0.1:6600"
path := "/test/service/a"
err := rc.RegisterNode(path, node, time.Second*5)
if err != nil {
	//return
}

Get service nodes

nodes := rc.GetService(path)