jsonify the config object

projects/activitypub_relay/src/python/relay/config.py

@@ -198,4 +198,5 @@ class RelayConfig(DotDict):
 
     def save(self):
         with open(self._path, "w") as fd:
-            yaml.dump(self, fd, sort_keys=False)
+            fd.write("---\n")
+            yaml.dump(self.jsonify(), fd, sort_keys=True)

projects/activitypub_relay/src/python/relay/misc.py

@@ -328,6 +328,15 @@ class DotDict(dict):
     def to_json(self, indent=None):
         return json.dumps(self, indent=indent)
 
+    def jsonify(self):
+        def _xform(v):
+            if hasattr(v, 'jsonify'):
+                return v.jsonify()
+            else:
+                return v
+
+        return {k: _xform(v) for k, v in self.items()}
+
     def update(self, _data, **kwargs):
         if isinstance(_data, dict):
             for key, value in _data.items():