first commit

internal/pkg/snowflake/snowflake.go

@@ -0,0 +1,20 @@
+package snowflake
+
+import (
+	"github.com/bwmarrin/snowflake"
+)
+
+var node *snowflake.Node
+
+func Init() error {
+	n, err := snowflake.NewNode(1)
+	if err != nil {
+		return err
+	}
+	node = n
+	return nil
+}
+
+func GetId() int64 {
+	return node.Generate().Int64()
+}