fix 代码遗漏

backend/utils/helpers.go

@@ -1,6 +1,8 @@
 package utils
 
 import (
+	"context"
+	"crawlab/database"
 	"crawlab/entity"
 	"encoding/json"
 	"github.com/apex/log"
@@ -40,3 +42,22 @@ func Close(c io.Closer) {
 		log.WithError(err).Error("关闭资源文件失败。")
 	}
 }
+
+func Pub(channel string, msg entity.NodeMessage) error {
+	if _, err := database.RedisClient.Publish(channel, GetJson(msg)); err != nil {
+		log.Errorf("publish redis error: %s", err.Error())
+		debug.PrintStack()
+		return err
+	}
+	return nil
+}
+
+func Sub(channel string, consume database.ConsumeFunc) error {
+	ctx := context.Background()
+	if err := database.RedisClient.Subscribe(ctx, consume, channel); err != nil {
+		log.Errorf("subscribe redis error: %s", err.Error())
+		debug.PrintStack()
+		return err
+	}
+	return nil
+}