diff --git a/Makefile.am b/Makefile.am
index 83a2964c0..a009d02d2 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -580,7 +580,7 @@ include_bitcoin_network_messages_HEADERS = \
 include_bitcoin_network_messages_httpdir = ${includedir}/bitcoin/network/messages/http
 include_bitcoin_network_messages_http_HEADERS = \
     include/bitcoin/network/messages/http/fields.hpp \
-    include/bitcoin/network/messages/http/file_writer.hpp \
+    include/bitcoin/network/messages/http/file_body.hpp \
     include/bitcoin/network/messages/http/http.hpp
 
 include_bitcoin_network_messages_http_enumsdir = ${includedir}/bitcoin/network/messages/http/enums
diff --git a/builds/msvc/vs2022/libbitcoin-network/libbitcoin-network.vcxproj b/builds/msvc/vs2022/libbitcoin-network/libbitcoin-network.vcxproj
index d51267951..d0b2e1954 100644
--- a/builds/msvc/vs2022/libbitcoin-network/libbitcoin-network.vcxproj
+++ b/builds/msvc/vs2022/libbitcoin-network/libbitcoin-network.vcxproj
@@ -338,7 +338,7 @@
     <ClInclude Include="..\..\..\..\include\bitcoin\network\messages\http\enums\target.hpp" />
     <ClInclude Include="..\..\..\..\include\bitcoin\network\messages\http\enums\verb.hpp" />
     <ClInclude Include="..\..\..\..\include\bitcoin\network\messages\http\fields.hpp" />
-    <ClInclude Include="..\..\..\..\include\bitcoin\network\messages\http\file_writer.hpp" />
+    <ClInclude Include="..\..\..\..\include\bitcoin\network\messages\http\file_body.hpp" />
     <ClInclude Include="..\..\..\..\include\bitcoin\network\messages\http\http.hpp" />
     <ClInclude Include="..\..\..\..\include\bitcoin\network\messages\http_body.hpp" />
     <ClInclude Include="..\..\..\..\include\bitcoin\network\messages\http_method.hpp" />
diff --git a/builds/msvc/vs2022/libbitcoin-network/libbitcoin-network.vcxproj.filters b/builds/msvc/vs2022/libbitcoin-network/libbitcoin-network.vcxproj.filters
index 2b28f9ac3..99bc2ee3b 100644
--- a/builds/msvc/vs2022/libbitcoin-network/libbitcoin-network.vcxproj.filters
+++ b/builds/msvc/vs2022/libbitcoin-network/libbitcoin-network.vcxproj.filters
@@ -779,7 +779,7 @@
     <ClInclude Include="..\..\..\..\include\bitcoin\network\messages\http\fields.hpp">
       <Filter>include\bitcoin\network\messages\http</Filter>
     </ClInclude>
-    <ClInclude Include="..\..\..\..\include\bitcoin\network\messages\http\file_writer.hpp">
+    <ClInclude Include="..\..\..\..\include\bitcoin\network\messages\http\file_body.hpp">
       <Filter>include\bitcoin\network\messages\http</Filter>
     </ClInclude>
     <ClInclude Include="..\..\..\..\include\bitcoin\network\messages\http\http.hpp">
diff --git a/builds/msvc/vs2026/libbitcoin-network/libbitcoin-network.vcxproj b/builds/msvc/vs2026/libbitcoin-network/libbitcoin-network.vcxproj
index 4b85360f2..6c08abec4 100644
--- a/builds/msvc/vs2026/libbitcoin-network/libbitcoin-network.vcxproj
+++ b/builds/msvc/vs2026/libbitcoin-network/libbitcoin-network.vcxproj
@@ -338,7 +338,7 @@
     <ClInclude Include="..\..\..\..\include\bitcoin\network\messages\http\enums\target.hpp" />
     <ClInclude Include="..\..\..\..\include\bitcoin\network\messages\http\enums\verb.hpp" />
     <ClInclude Include="..\..\..\..\include\bitcoin\network\messages\http\fields.hpp" />
-    <ClInclude Include="..\..\..\..\include\bitcoin\network\messages\http\file_writer.hpp" />
+    <ClInclude Include="..\..\..\..\include\bitcoin\network\messages\http\file_body.hpp" />
     <ClInclude Include="..\..\..\..\include\bitcoin\network\messages\http\http.hpp" />
     <ClInclude Include="..\..\..\..\include\bitcoin\network\messages\http_body.hpp" />
     <ClInclude Include="..\..\..\..\include\bitcoin\network\messages\http_method.hpp" />
diff --git a/builds/msvc/vs2026/libbitcoin-network/libbitcoin-network.vcxproj.filters b/builds/msvc/vs2026/libbitcoin-network/libbitcoin-network.vcxproj.filters
index 2b28f9ac3..99bc2ee3b 100644
--- a/builds/msvc/vs2026/libbitcoin-network/libbitcoin-network.vcxproj.filters
+++ b/builds/msvc/vs2026/libbitcoin-network/libbitcoin-network.vcxproj.filters
@@ -779,7 +779,7 @@
     <ClInclude Include="..\..\..\..\include\bitcoin\network\messages\http\fields.hpp">
       <Filter>include\bitcoin\network\messages\http</Filter>
     </ClInclude>
-    <ClInclude Include="..\..\..\..\include\bitcoin\network\messages\http\file_writer.hpp">
+    <ClInclude Include="..\..\..\..\include\bitcoin\network\messages\http\file_body.hpp">
       <Filter>include\bitcoin\network\messages\http</Filter>
     </ClInclude>
     <ClInclude Include="..\..\..\..\include\bitcoin\network\messages\http\http.hpp">
diff --git a/include/bitcoin/network.hpp b/include/bitcoin/network.hpp
index 03499bdf3..4bca021b9 100644
--- a/include/bitcoin/network.hpp
+++ b/include/bitcoin/network.hpp
@@ -67,7 +67,7 @@
 #include <bitcoin/network/messages/json_body.hpp>
 #include <bitcoin/network/messages/messages.hpp>
 #include <bitcoin/network/messages/http/fields.hpp>
-#include <bitcoin/network/messages/http/file_writer.hpp>
+#include <bitcoin/network/messages/http/file_body.hpp>
 #include <bitcoin/network/messages/http/http.hpp>
 #include <bitcoin/network/messages/http/enums/magic_numbers.hpp>
 #include <bitcoin/network/messages/http/enums/media_type.hpp>
diff --git a/include/bitcoin/network/messages/http/file_writer.hpp b/include/bitcoin/network/messages/http/file_body.hpp
similarity index 90%
rename from include/bitcoin/network/messages/http/file_writer.hpp
rename to include/bitcoin/network/messages/http/file_body.hpp
index b7eb19d2b..087fa9b29 100644
--- a/include/bitcoin/network/messages/http/file_writer.hpp
+++ b/include/bitcoin/network/messages/http/file_body.hpp
@@ -16,8 +16,8 @@
  * You should have received a copy of the GNU Affero General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
-#ifndef LIBBITCOIN_NETWORK_MESSAGES_HTTP_FILE_WRITER_HPP
-#define LIBBITCOIN_NETWORK_MESSAGES_HTTP_FILE_WRITER_HPP
+#ifndef LIBBITCOIN_NETWORK_MESSAGES_HTTP_FILE_BODY_HPP
+#define LIBBITCOIN_NETWORK_MESSAGES_HTTP_FILE_BODY_HPP
 
 #include <memory>
 #include <bitcoin/network/define.hpp>
@@ -26,6 +26,7 @@ namespace libbitcoin {
 namespace network {
 namespace http {
 
+
 /// BOOST_BEAST_FILE_BUFFER_SIZE reduced from 4k to 1k in beast.hpp.
 /// beast_body::writer would eat up 1k in variant so wrap in this custom body.
 struct file_body
@@ -42,7 +43,9 @@ struct file_body
         template <bool IsRequest, class Fields>
         explicit writer(http::message_header<IsRequest, Fields>& header,
             beast_body::value_type& value) NOEXCEPT
+            BC_PUSH_WARNING(NO_THROW_IN_NOEXCEPT)
           : writer_(std::make_unique<beast_body::writer>(header, value))
+            BC_POP_WARNING()
         {
         }
 
@@ -77,7 +80,7 @@ struct file_body
         std::unique_ptr<beast_body::writer> writer_;
     };
 
-    static inline uint64_t size(value_type const& body) NOEXCEPT
+    static inline uint64_t size(const value_type& body) NOEXCEPT
     {
         return beast_body::size(body);
     }
diff --git a/include/bitcoin/network/messages/http/http.hpp b/include/bitcoin/network/messages/http/http.hpp
index d4576eaaf..0b32b7769 100644
--- a/include/bitcoin/network/messages/http/http.hpp
+++ b/include/bitcoin/network/messages/http/http.hpp
@@ -25,6 +25,6 @@
 #include <bitcoin/network/messages/http/enums/target.hpp>
 #include <bitcoin/network/messages/http/enums/verb.hpp>
 #include <bitcoin/network/messages/http/fields.hpp>
-#include <bitcoin/network/messages/http/file_writer.hpp>
+#include <bitcoin/network/messages/http/file_body.hpp>
 
 #endif