Fix JSONResponse default content type (#2738)

Fix JSONResponse default content type (#2737)

sanic/app.py

@@ -894,7 +894,6 @@ class Sanic(BaseSanic, StartupMixin, metaclass=TouchUpMeta):
         ] = None
         run_middleware = True
         try:
-
             await self.dispatch(
                 "http.routing.before",
                 inline=True,
@@ -926,7 +925,6 @@ class Sanic(BaseSanic, StartupMixin, metaclass=TouchUpMeta):
                 and request.stream.request_body
                 and not route.extra.ignore_body
             ):
-
                 if hasattr(handler, "is_stream"):
                     # Streaming handler: lift the size limit
                     request.stream.request_max_size = float("inf")

sanic/constants.py

@@ -4,7 +4,6 @@ from sanic.compat import UpperStrEnum
 
 
 class HTTPMethod(UpperStrEnum):
-
     GET = auto()
     POST = auto()
     PUT = auto()
@@ -15,7 +14,6 @@ class HTTPMethod(UpperStrEnum):
 
 
 class LocalCertCreator(UpperStrEnum):
-
     AUTO = auto()
     TRUSTME = auto()
     MKCERT = auto()

sanic/http/tls/creators.py

@@ -126,7 +126,6 @@ class CertCreator(ABC):
         local_tls_key,
         local_tls_cert,
     ) -> CertCreator:
-
         creator: Optional[CertCreator] = None
 
         cert_creator_options: Tuple[

sanic/mixins/startup.py

@@ -1109,7 +1109,6 @@ class StartupMixin(metaclass=SanicMeta):
         app: StartupMixin,
         server_info: ApplicationServerInfo,
     ) -> None:  # no cov
-
         try:
             # We should never get to this point without a server
             # This is primarily to keep mypy happy

sanic/request.py

@@ -146,7 +146,6 @@ class Request:
         head: bytes = b"",
         stream_id: int = 0,
     ):
-
         self.raw_url = url_bytes
         try:
             self._parsed_url = parse_url(url_bytes)

sanic/response/types.py

@@ -232,7 +232,7 @@ class JSONResponse(HTTPResponse):
         body: Optional[Any] = None,
         status: int = 200,
         headers: Optional[Union[Header, Dict[str, str]]] = None,
-        content_type: Optional[str] = None,
+        content_type: str = "application/json",
         dumps: Optional[Callable[..., str]] = None,
         **kwargs: Any,
     ):

sanic/server/legacy.py

@@ -94,7 +94,6 @@ def watchdog(sleep_interval, reload_dirs):
 
     try:
         while True:
-
             changed = set()
             for filename in itertools.chain(
                 _iter_module_files(),

sanic/server/websockets/frame.py

@@ -52,7 +52,6 @@ class WebsocketFrameAssembler:
         paused: bool
 
     def __init__(self, protocol) -> None:
-
         self.protocol = protocol
 
         self.read_mutex = asyncio.Lock()

sanic/server/websockets/impl.py

@@ -686,7 +686,6 @@ class WebsocketImplProtocol:
         :raises TypeError: for unsupported inputs
         """
         async with self.conn_mutex:
-
             if self.ws_proto.state in (CLOSED, CLOSING):
                 raise WebsocketClosed(
                     "Cannot write to websocket interface after it is closed."

sanic/touchup/meta.py

@@ -11,7 +11,6 @@ class TouchUpMeta(SanicMeta):
         methods = attrs.get("__touchup__")
         attrs["__touched__"] = False
         if methods:
-
             for method in methods:
                 if method not in attrs:
                     raise SanicException(

sanic/utils.py

@@ -75,7 +75,6 @@ def load_module_from_file_location(
         location = location.decode(encoding)
 
     if isinstance(location, Path) or "/" in location or "$" in location:
-
         if not isinstance(location, Path):
             # A) Check if location contains any environment variables
             #    in format ${some_env_var}.

tests/test_response_json.py

@@ -213,3 +213,12 @@ def test_pop_list(json_app: Sanic):
 
     _, resp = json_app.test_client.get("/json-pop")
     assert resp.body == json_dumps(["b"]).encode()
+
+
+def test_json_response_class_sets_proper_content_type(json_app: Sanic):
+    @json_app.get("/json-class")
+    async def handler(request: Request):
+        return JSONResponse(JSON_BODY)
+
+    _, resp = json_app.test_client.get("/json-class")
+    assert resp.headers["content-type"] == "application/json"