Hapi: Pass toolkit to context function

CHANGELOG.md

@@ -4,6 +4,8 @@ All of the packages in the `apollo-server` repo are released with the same versi
 
 ### vNEXT
 
+- Hapi: Pass the response toolkit to the context function. [#1407](https://github.com/apollographql/apollo-server/pull/1407)
+
 ### rc.10
 
 - Fix and Export Extension and Playground Types [#1360](https://github.com/apollographql/apollo-server/pull/1360)

packages/apollo-server-hapi/src/hapiApollo.ts

@@ -41,7 +41,7 @@ const graphqlHapi: IPlugin = {
       handler: async (request, h) => {
         try {
           const { graphqlResponse, responseInit } = await runHttpQuery(
-            [request],
+            [request, h],
             {
               method: request.method.toUpperCase(),
               options: options.graphqlOptions,