Only json.dumps in request() if content is json-serializable

mautrix_appservice/__init__.py

@@ -3,5 +3,5 @@
 from .state_store import StateStore
 from .intent_api import IntentAPI
 
-__version__ = "0.3.8"
+__version__ = "0.3.9"
 __author__ = "Tulir Asokan <[email protected]>"

mautrix_appservice/intent_api.py

@@ -184,9 +184,10 @@ def request(self, method: str, path: str, content: Optional[Union[dict, bytes, s
         if method not in ["GET", "PUT", "DELETE", "POST"]:
             raise MatrixError("Unsupported HTTP method: %s" % method)
 
-        if "Content-Type" not in headers:
+        is_json_ish = isinstance(content, (dict, list, str, int, float, bool, type(None)))
+        if "Content-Type" not in headers and is_json_ish:
             headers["Content-Type"] = "application/json"
-        if headers.get("Content-Type", None) == "application/json":
+        if headers.get("Content-Type", None) == "application/json" and is_json_ish:
             content = json.dumps(content)
 
         if self.identity and not self.is_real_user:

setup.py

@@ -2,7 +2,7 @@
 
 setuptools.setup(
     name="mautrix-appservice",
-    version="0.3.8",
+    version="0.3.9",
     url="https://github.com/tulir/mautrix-appservice-python",
 
     author="Tulir Asokan",