1 files changed, 13 insertions, 0 deletions
diff --git a/src/mongo/db/auth/user.h b/src/mongo/db/auth/user.h
index 715b849fe9b..5b3edfb767f 100644
--- a/src/mongo/db/auth/user.h
+++ b/src/mongo/db/auth/user.h
@@ -104,6 +104,15 @@ public:
 
     explicit User(const UserName& name);
 
+    using UserId = std::vector<std::uint8_t>;
+    const UserId& getID() const {
+        return _id;
+    }
+
+    void setID(UserId id) {
+        _id = std::move(id);
+    }
+
     /**
      * Returns the user name for this user.
      */
@@ -230,6 +239,10 @@ protected:
     void _invalidate();
 
 private:
+    // Unique ID (often UUID) for this user.
+    // May be empty for legacy users.
+    UserId _id;
+
     UserName _name;
 
     // Digest of the full username