Allow registering admin users using the module API

changelog.d/12250.feature

@@ -0,0 +1 @@
+Allow registering admin users using the module API. Contributed by Famedly.

synapse/module_api/__init__.py

@@ -611,6 +611,7 @@ def register_user(
         localpart: str,
         displayname: Optional[str] = None,
         emails: Optional[List[str]] = None,
+        admin: bool = False,
     ) -> "defer.Deferred[str]":
         """Registers a new user with given localpart and optional displayname, emails.
 
@@ -620,6 +621,7 @@ def register_user(
             localpart: The localpart of the new user.
             displayname: The displayname of the new user.
             emails: Emails to bind to the new user.
+            admin: True if the user should be registered as a server admin.
 
         Raises:
             SynapseError if there is an error performing the registration. Check the
@@ -633,6 +635,7 @@ def register_user(
                 localpart=localpart,
                 default_display_name=displayname,
                 bind_emails=emails or [],
+                admin=admin,
             )
         )
 

tests/module_api/test_api.py

@@ -86,6 +86,16 @@ def test_can_register_user(self):
         displayname = self.get_success(self.store.get_profile_displayname("bob"))
         self.assertEqual(displayname, "Bobberino")
 
+    def test_can_register_admin_user(self):
+        user_id = self.get_success(
+            self.register_user(
+                "bob_module_admin", "1234", displayname="Bobberino Admin", admin=True
+            )
+        )
+        found_user = self.get_success(self.module_api.get_userinfo_by_id(user_id))
+        self.assertEqual(found_user.user_id.to_string(), user_id)
+        self.assertIdentical(found_user.is_admin, True)
+
     def test_get_userinfo_by_id(self):
         user_id = self.register_user("alice", "1234")
         found_user = self.get_success(self.module_api.get_userinfo_by_id(user_id))