need to have the correct parser based on mimetype

Author: paulcruse3

acai_aws/apigateway/request.py

@@ -21,7 +21,7 @@ def __init__(self, event, lambda_context=None, timeout=None):
         self.__context = {}
         self.__parsers = {
             'application/json': 'json',
-            'application/graphql': 'json',
+            'application/graphql': 'graphql',
             'application/x-www-form-urlencoded': 'form',
             'multipart/form-data': 'raw',
             'application/xml': 'xml',