init

utils/nacos/service.go

@@ -0,0 +1,100 @@
+package nacos
+
+import (
+	"github.com/nacos-group/nacos-sdk-go/v2/clients"
+	"github.com/nacos-group/nacos-sdk-go/v2/clients/naming_client"
+	"github.com/nacos-group/nacos-sdk-go/v2/model"
+	"github.com/nacos-group/nacos-sdk-go/v2/vo"
+	"os"
+	"strconv"
+)
+
+var (
+	cli       naming_client.INamingClient
+	groupName string
+)
+
+// NewNacosRegistry 创建一个nacos注册中心
+func NewNacosRegistry() (*naming_client.INamingClient, error) {
+	InitNacosRegistryConfig()
+	if cli != nil {
+		return &cli, nil
+	}
+	groupName = os.Getenv("NACOS_GROUP_NAME")
+	var err error
+	cli, err = clients.NewNamingClient(
+		vo.NacosClientParam{
+			ClientConfig:  cc,
+			ServerConfigs: sc,
+		},
+	)
+	if err != nil {
+		return nil, err
+	}
+	return &cli, nil
+}
+
+// RegisterService 注册当前服务到nacos中
+func RegisterService() error {
+	client, err := NewNacosRegistry()
+	if err != nil {
+		return err
+	}
+	serviceName := os.Getenv("NACOS_SERVICE_NAME")
+	host := os.Getenv("NACOS_SERVICE_HOST")
+	port, err := strconv.Atoi(os.Getenv("NACOS_SERVICE_PORT"))
+	if err != nil {
+		port = 8848
+	}
+	weight, err := strconv.Atoi(os.Getenv("NACOS_SERVICE_WEIGHT"))
+	if err != nil {
+		weight = 10
+	}
+	_, err = (*client).RegisterInstance(vo.RegisterInstanceParam{
+		Ip:          host,
+		Port:        uint64(port),
+		ServiceName: serviceName,
+		Weight:      float64(weight),
+		Enable:      true,
+		Healthy:     true,
+		Ephemeral:   false,
+		GroupName:   groupName,
+	})
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+// DiscoverServiceList 发现服务列表
+func DiscoverServiceList(serviceName string) ([]model.Instance, error) {
+	client, err := NewNacosRegistry()
+	if err != nil {
+		return nil, err
+	}
+	instances, err := (*client).SelectInstances(vo.SelectInstancesParam{
+		ServiceName: serviceName,
+		HealthyOnly: false,
+		GroupName:   groupName,
+	})
+	if err != nil {
+		return nil, err
+	}
+	return instances, nil
+}
+
+// DiscoverService 发现一个服务
+func DiscoverService(serviceName string) (model.Instance, error) {
+	client, err := NewNacosRegistry()
+	if err != nil {
+		return model.Instance{}, err
+	}
+	instances, err := (*client).SelectOneHealthyInstance(vo.SelectOneHealthInstanceParam{
+		ServiceName: serviceName,
+		GroupName:   groupName,
+	})
+	if err != nil {
+		return model.Instance{}, err
+	}
+	return *instances, nil
+}