Implemented graphql request and response wrapper.

Author: kigen

examples/nameko_sqlalchemy/app.py

@@ -0,0 +1,36 @@
+from database import db_session, init_db
+from schema import schema
+
+from graphql_server import (HttpQueryError, default_format_error,
+                            encode_execution_results, json_encode,load_json_body, run_http_query)
+
+
+class App():
+  def __init__(self):
+    init_db()
+
+  def query(self, request):
+      data  = self.parse_body(request)
+      execution_results, params = run_http_query(
+              schema,
+              'post',
+              data)
+      result, status_code = encode_execution_results(
+              execution_results,
+              format_error=default_format_error,is_batch=False, encode=json_encode)
+      return result
+  
+  def parse_body(self,request):
+      # We use mimetype here since we don't need the other
+      # information provided by content_type
+      content_type = request.mimetype
+      if content_type == 'application/graphql':
+          return {'query': request.data.decode('utf8')}
+
+      elif content_type == 'application/json':
+          return load_json_body(request.data.decode('utf8'))
+
+      elif content_type in ('application/x-www-form-urlencoded', 'multipart/form-data'):
+          return request.form
+
+      return {}