Added support for custom JSON mimetypes

CHANGES

@@ -14,6 +14,7 @@ Version 1.0
   `False` it will only be modified if the session actually modifies.
   Non permanent sessions are not affected by this and will always
   expire if the browser window closes.
+- Made Flask support custom JSON mimetypes for incoming data.
 
 Version 0.10.2
 --------------

flask/testsuite/helpers.py

@@ -38,6 +38,15 @@ class JSONTestCase(FlaskTestCase):
         rv = c.post('/json', data='malformed', content_type='application/json')
         self.assert_equal(rv.status_code, 400)
 
+    def test_json_custom_mimetypes(self):
+        app = flask.Flask(__name__)
+        @app.route('/json', methods=['POST'])
+        def return_json():
+            return flask.request.get_json()
+        c = app.test_client()
+        rv = c.post('/json', data='"foo"', content_type='application/x+json')
+        self.assert_equal(rv.data, b'foo')
+
     def test_json_body_encoding(self):
         app = flask.Flask(__name__)
         app.testing = True

flask/wrappers.py

@@ -107,6 +107,21 @@ class Request(RequestBase):
         # XXX: deprecate property
         return self.get_json()
 
+    @property
+    def is_json(self):
+        """Indicates if this request is JSON or not.  By default a request
+        is considered to include JSON data if the mimetype is
+        ``application/json`` or ``application/*+json``.
+
+        .. versionadded:: 0.11
+        """
+        mt = self.mimetype
+        if mt == 'application/json':
+            return True
+        if mt.startswith('application/') and mt.endswith('+json'):
+            return True
+        return False
+
     def get_json(self, force=False, silent=False, cache=True):
         """Parses the incoming JSON request data and returns it.  If
         parsing fails the :meth:`on_json_loading_failed` method on the
@@ -124,7 +139,7 @@ class Request(RequestBase):
         if rv is not _missing:
             return rv
 
-        if self.mimetype != 'application/json' and not force:
+        if not (force or self.is_json):
             return None
 
         # We accept a request charset against the specification as