diff --git a/include/forward_unauthorized.hpp b/include/forward_unauthorized.hpp
index 5d5e744..07836ce 100644
--- a/include/forward_unauthorized.hpp
+++ b/include/forward_unauthorized.hpp
@@ -34,8 +34,8 @@
         // If we don't have a webui installed, just return an unauthorized
         // body
         res.result(boost::beast::http::status::unauthorized);
-        res.body() =
-            "No authentication provided, and no login UI present to forward to.";
+        res.write(
+            "No authentication provided, and no login UI present to forward to.");
         return;
     }
 
diff --git a/include/openbmc_dbus_rest.hpp b/include/openbmc_dbus_rest.hpp
index bade59e..e0c16d9 100644
--- a/include/openbmc_dbus_rest.hpp
+++ b/include/openbmc_dbus_rest.hpp
@@ -2534,8 +2534,7 @@
 
         for (const auto& file : files)
         {
-            std::ifstream readFile(file.path());
-            if (!readFile.good())
+            if (!asyncResp->res.openFile(file))
             {
                 continue;
             }
@@ -2564,8 +2563,6 @@
                 boost::beast::http::field::content_disposition,
                 contentDispositionParam);
 
-            asyncResp->res.body() = {std::istreambuf_iterator<char>(readFile),
-                                     std::istreambuf_iterator<char>()};
             return;
         }
         asyncResp->res.result(boost::beast::http::status::not_found);
diff --git a/include/webassets.hpp b/include/webassets.hpp
index 4deb7a7..5ab0323 100644
--- a/include/webassets.hpp
+++ b/include/webassets.hpp
@@ -165,17 +165,13 @@
                 }
 
                 // res.set_header("Cache-Control", "public, max-age=86400");
-                std::ifstream inf(absolutePath);
-                if (!inf)
+                if (!asyncResp->res.openFile(absolutePath))
                 {
                     BMCWEB_LOG_DEBUG("failed to read file");
                     asyncResp->res.result(
                         boost::beast::http::status::internal_server_error);
                     return;
                 }
-
-                asyncResp->res.body() = {std::istreambuf_iterator<char>(inf),
-                                         std::istreambuf_iterator<char>()};
             });
         }
     }