Fix issue aws#129

chalice/app.py

@@ -69,9 +69,11 @@ def __init__(self, query_params, headers, uri_params, method, body,
         #: The parsed JSON from the body.  This value should
         #: only be set if the Content-Type header is application/json,
         #: which is the default content type value in chalice.
-        if self.headers.get('Content-Type') == 'application/json':
-            # We'll need to address case insensitive header lookups
-            # eventually.
+        has_application_json_header = (
+            self.headers.get('Content-Type') == 'application/json'
+            or self.headers.get('content-type') == 'application/json'
+            )
+        if has_application_json_header:
             self.json_body = body
         else:
             self.json_body = None

tests/unit/test_app.py

@@ -233,6 +233,22 @@ def index():
     assert raw_body == '{"foo": "bar"}'
 
 
+def test_json_body_available_with_lowercase_content_type_key():
+    demo = app.Chalice('demo-app')
+
+    @demo.route('/', methods=['POST'])
+    def index():
+        return (demo.current_request.json_body, demo.current_request.raw_body)
+
+    event = create_event_with_body({'foo': 'bar'})
+    del event['params']['header']['Content-Type']
+    event['params']['header']['content-type'] = 'application/json'
+
+    json_body, raw_body = demo(event, context=None)
+    assert json_body == {'foo': 'bar'}
+    assert raw_body == '{"foo": "bar"}'
+
+
 def test_content_types_must_be_lists():
     demo = app.Chalice('app-name')