constant.ClientConfig{
	TimeoutMs            uint64 // timeout for requesting Nacos server, default value is 10000ms
	NamespaceId          string // the namespaceId of Nacos
	Endpoint             string // the endpoint for get Nacos server addresses
	RegionId             string // the regionId for kms
	AccessKey            string // the AccessKey for kms
	SecretKey            string // the SecretKey for kms
	OpenKMS              bool   // it's to open kms,default is false. https://help.aliyun.com/product/28933.html
	CacheDir             string // the directory for persist nacos service info,default value is current path
	UpdateThreadNum      int    // the number of goroutine for update nacos service info,default value is 20
	NotLoadCacheAtStart  bool   // not to load persistent nacos service info in CacheDir at start time
	UpdateCacheWhenEmpty bool   // update cache when get empty service instance from server
	Username             string // the username for nacos auth
	Password             string // the password for nacos auth
	LogDir               string // the directory for log, default is current path
	RotateTime           string // the rotate time for log, eg: 30m, 1h, 24h, default is 24h
	MaxAge               int64  // the max age of a log file, default value is 3
	LogLevel             string // the level of log, it's must be debug,info,warn,error, default value is info
}

constant.ServerConfig{
	ContextPath string // the nacos server context path
	IpAddr      string // the nacos server address
	Port        uint64 // the nacos server port
	Scheme      string // the nacos server scheme
}

clientConfig := constant.ClientConfig{
	NamespaceId:         "e525eafa-f7d7-4029-83d9-008937f9d468", //we can create multiple clients with different namespaceId to support multiple namespace
	TimeoutMs:           5000,
	NotLoadCacheAtStart: true,
	LogDir:              "/tmp/nacos/log",
	CacheDir:            "/tmp/nacos/cache",
	RotateTime:          "1h",
	MaxAge:              3,
	LogLevel:            "debug",
} 

// At least one ServerConfig 
serverConfigs := []constant.ServerConfig{
    {
        IpAddr:      "console1.nacos.io",
        ContextPath: "/nacos",
        Port:        80,
        Scheme:      "http",
    },
    {
    	IpAddr:      "console2.nacos.io",
    	ContextPath: "/nacos",
    	Port:        80,
        Scheme:      "http",
    },
}

// Create naming client for service discovery
namingClient, err := clients.CreateNamingClient(map[string]interface{}{
	"serverConfigs": serverConfigs,
	"clientConfig":  clientConfig,
})

// Create config client for dynamic configuration
configClient, err := clients.CreateConfigClient(map[string]interface{}{
	"serverConfigs": serverConfigs,
	"clientConfig":  clientConfig,
})
    

success, err := namingClient.RegisterInstance(vo.RegisterInstanceParam{
    Ip:          "10.0.0.11",
    Port:        8848,
    ServiceName: "demo.go",
    Weight:      10,
    Enable:      true,
    Healthy:     true,
    Ephemeral:   true,
    Metadata:    map[string]string{"idc":"shanghai"},
    ClusterName: "cluster-a", // default value is DEFAULT
    GroupName:   "group-a",  // default value is DEFAULT_GROUP
})

success, err := namingClient.DeregisterInstance(vo.DeregisterInstanceParam{
    Ip:          "10.0.0.11",
    Port:        8848,
    ServiceName: "demo.go",
    Ephemeral:   true,
    Cluster:     "cluster-a", // default value is DEFAULT
    GroupName:   "group-a",   // default value is DEFAULT_GROUP
})

services, err := namingClient.GetService(vo.GetServiceParam{
    ServiceName: "demo.go",
    Clusters:    []string{"cluster-a"}, // default value is DEFAULT
    GroupName:   "group-a",             // default value is DEFAULT_GROUP
})

// SelectAllInstance return all instances,include healthy=false,enable=false,weight<=0
instances, err := namingClient.SelectAllInstances(vo.SelectAllInstancesParam{
    ServiceName: "demo.go",
    GroupName:   "group-a",             // default value is DEFAULT_GROUP
    Clusters:    []string{"cluster-a"}, // default value is DEFAULT
})

// SelectInstances only return the instances of healthy=${HealthyOnly},enable=true and weight>0
instances, err := namingClient.SelectInstances(vo.SelectInstancesParam{
    ServiceName: "demo.go",
    GroupName:   "group-a",             // default value is DEFAULT_GROUP
    Clusters:    []string{"cluster-a"}, // default value is DEFAULT
    HealthyOnly: true,
})

// SelectOneHealthyInstance return one instance by WRR strategy for load balance
// And the instance should be health=true,enable=true and weight>0
instance, err := namingClient.SelectOneHealthyInstance(vo.SelectOneHealthInstanceParam{
    ServiceName: "demo.go",
    GroupName:   "group-a",             // default value is DEFAULT_GROUP
    Clusters:    []string{"cluster-a"}, // default value is DEFAULT
})

// Subscribe key = serviceName+groupName+cluster
// Note: We call add multiple SubscribeCallback with the same key.
err := namingClient.Subscribe(vo.SubscribeParam{
    ServiceName: "demo.go",
    GroupName:   "group-a",             // default value is DEFAULT_GROUP
    Clusters:    []string{"cluster-a"}, // default value is DEFAULT
    SubscribeCallback: func(services []model.SubscribeService, err error) {
        log.Printf("\n\n callback return services:%s \n\n", utils.ToJsonString(services))
    },
})

err := namingClient.Unsubscribe(vo.SubscribeParam{
    ServiceName: "demo.go",
    GroupName:   "group-a",             // default value is DEFAULT_GROUP
    Clusters:    []string{"cluster-a"}, // default value is DEFAULT
    SubscribeCallback: func(services []model.SubscribeService, err error) {
        log.Printf("\n\n callback return services:%s \n\n", utils.ToJsonString(services))
    },
})

serviceInfos, err := client.GetAllServicesInfo(vo.GetAllServiceInfoParam{
    NameSpace: "0e83cc81-9d8c-4bb8-a28a-ff703187543f",
    PageNo:   1,
    PageSize: 10,
    }),

success, err := configClient.PublishConfig(vo.ConfigParam{
    DataId:  "dataId",
    Group:   "group",
    Content: "hello world!222222"})

success, err = configClient.DeleteConfig(vo.ConfigParam{
    DataId: "dataId",
    Group:  "group"})

content, err := configClient.GetConfig(vo.ConfigParam{
    DataId: "dataId",
    Group:  "group"})

err := configClient.ListenConfig(vo.ConfigParam{
    DataId: "dataId",
    Group:  "group",
    OnChange: func(namespace, group, dataId, data string) {
        fmt.Println("group:" + group + ", dataId:" + dataId + ", data:" + data)
	},
})

err := configClient.CancelListenConfig(vo.ConfigParam{
    DataId: "dataId",
    Group:  "group",
})

configPage, err := configClient.SearchConfig(vo.SearchConfigParam{
    Search:   "blur",
    DataId:   "",
    Group:    "",
    PageNo:   1,
    PageSize: 10,
})