From 3b42fdd12fd7748a660096dacc0a296ad7690a36 Mon Sep 17 00:00:00 2001
From: bensynapse <118375461+bensynapse@users.noreply.github.com>
Date: Thu, 8 Oct 2026 15:38:53 +0300
Subject: [PATCH] Preserve empty method names

---
 CHANGELOG.md             |  2 ++
 jsonrpcserver/methods.py |  2 +-
 tests/test_methods.py    | 16 ++++++++++++++++
 3 files changed, 19 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 85087fd..5ff86ab 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -148,6 +148,8 @@ work in 5.x but give a `DeprecationWarning`, and will be removed in 6.0.
 
 ### Fixes
 
+- `@method(name="")` now registers the empty name. It used to ignore that
+  name and register the function's name instead.
 - The development server, `serve()`, dropped every connection without a
   response when `sys.stderr` was `None`. That's the case in a PyInstaller app
   built with `--noconsole` (#269). It now logs requests through the logging
diff --git a/jsonrpcserver/methods.py b/jsonrpcserver/methods.py
index 4254ab2..60464c5 100644
--- a/jsonrpcserver/methods.py
+++ b/jsonrpcserver/methods.py
@@ -78,7 +78,7 @@ def add(a: int, b: int) -> Result:
     """
 
     def decorator(func: F) -> F:
-        method_name = name or func.__name__
+        method_name = func.__name__ if name is None else name
         if method_name.startswith("rpc."):
             warnings.warn(
                 f"Method names starting with 'rpc.' are reserved by the JSON-RPC spec "
diff --git a/tests/test_methods.py b/tests/test_methods.py
index c38010a..1a64d4a 100644
--- a/tests/test_methods.py
+++ b/tests/test_methods.py
@@ -1,5 +1,8 @@
 """Test methods.py"""
 
+import pytest
+
+from jsonrpcserver import Result, Success, dispatch
 from jsonrpcserver.methods import global_methods, method
 
 # pylint: disable=missing-function-docstring
@@ -19,3 +22,16 @@ def name() -> None:
         pass
 
     assert callable(global_methods["new_name"])
+
+
+def test_decorator_empty_name(monkeypatch: pytest.MonkeyPatch) -> None:
+    monkeypatch.setitem(global_methods, "", lambda: Success("previous"))
+
+    @method(name="")
+    def empty_name() -> Result:
+        return Success("pong")
+
+    assert dispatch('{"jsonrpc": "2.0", "method": "", "id": 1}') == (
+        '{"jsonrpc": "2.0", "result": "pong", "id": 1}'
+    )
+    assert global_methods[""] is empty_name