Merge branch 'graphql-batch-requests-ee' into 'master'

Enable GraphQL batch requests

See merge request gitlab-org/gitlab-ce!28370

app/assets/javascripts/lib/graphql.js

 import { ApolloClient } from 'apollo-client';
 import { InMemoryCache } from 'apollo-cache-inmemory';
 import { createUploadLink } from 'apollo-upload-client';
+import { ApolloLink } from 'apollo-link';
+import { BatchHttpLink } from 'apollo-link-batch-http';
 import csrf from '~/lib/utils/csrf';
 
 export default (resolvers = {}, config = {}) => {
@@ -11,13 +13,19 @@ export default (resolvers = {}, config = {}) => {
     uri = `${config.baseUrl}${uri}`.replace(/\/{3,}/g, '/');
   }
 
-  return new ApolloClient({
-    link: createUploadLink({
+  const httpOptions = {
     uri,
     headers: {
       [csrf.headerKey]: csrf.token,
     },
-    }),
+  };
+
+  return new ApolloClient({
+    link: ApolloLink.split(
+      operation => operation.getContext().hasUpload,
+      createUploadLink(httpOptions),
+      new BatchHttpLink(httpOptions),
+    ),
     cache: new InMemoryCache(config.cacheConfig),
     resolvers,
   });

app/controllers/graphql_controller.rb

@@ -53,7 +53,8 @@ class GraphqlController < ApplicationController
       {
         query: single_query_info[:query],
         variables: build_variables(single_query_info[:variables]),
-        operation_name: single_query_info[:operationName]
+        operation_name: single_query_info[:operationName],
+        context: context
       }
     end
   end

package.json

@@ -41,6 +41,8 @@
     "@gitlab/ui": "^3.10.1",
     "apollo-cache-inmemory": "^1.5.1",
     "apollo-client": "^2.5.1",
+    "apollo-link": "^1.2.11",
+    "apollo-link-batch-http": "^1.2.11",
     "apollo-upload-client": "^10.0.0",
     "at.js": "^1.5.4",
     "autosize": "^4.0.0",

spec/requests/api/graphql/gitlab_schema_spec.rb

@@ -52,13 +52,22 @@ describe 'GitlabSchema configurations' do
   end
 
   context 'multiplexed queries' do
+    let(:current_user) { nil }
+
     subject do
       queries = [
-        { query: graphql_query_for('project', { 'fullPath' => project.full_path }, %w(id name description)) },
-        { query: graphql_query_for('echo', { 'text' => "$test" }, []), variables: { "test" => "Hello world" } }
+        { query: graphql_query_for('project', { 'fullPath' => '$fullPath' }, %w(id name description)) },
+        { query: graphql_query_for('echo', { 'text' => "$test" }, []), variables: { "test" => "Hello world" } },
+        { query: graphql_query_for('project', { 'fullPath' => project.full_path }, "userPermissions { createIssue }") }
       ]
 
-      post_multiplex(queries)
+      post_multiplex(queries, current_user: current_user)
+    end
+
+    it 'does not authenticate all queries' do
+      subject
+
+      expect(json_response.last['data']['project']).to be_nil
     end
 
     it_behaves_like 'imposing query limits' do
@@ -69,18 +78,28 @@ describe 'GitlabSchema configurations' do
         subject
 
         # Expect a response for each query, even though it will be empty
-        expect(json_response.size).to eq(2)
+        expect(json_response.size).to eq(3)
         json_response.each do |single_query_response|
           expect(single_query_response).not_to have_key('data')
         end
 
         # Expect errors for each query
-        expect(graphql_errors.size).to eq(2)
+        expect(graphql_errors.size).to eq(3)
         graphql_errors.each do |single_query_errors|
           expect(single_query_errors.first['message']).to include('which exceeds max complexity of 4')
         end
       end
     end
+
+    context 'authentication' do
+      let(:current_user) { project.owner }
+
+      it 'authenticates all queries' do
+        subject
+
+        expect(json_response.last['data']['project']['userPermissions']['createIssue']).to be(true)
+      end
+    end
   end
 
   context 'when IntrospectionQuery' do

yarn.lock

@@ -1398,6 +1398,24 @@ apollo-client@^2.5.1:
     tslib "^1.9.3"
     zen-observable "^0.8.0"
 
+apollo-link-batch-http@^1.2.11:
+  version "1.2.11"
+  resolved "https://registry.yarnpkg.com/apollo-link-batch-http/-/apollo-link-batch-http-1.2.11.tgz#ae42dbcc02820658e1e267d05bf2aae7ac208088"
+  integrity sha512-f+KEdbP51I3AeEaBDW2lKS3eaPK/1IXaTM9F2moj02s1hgC/TzeUORRuUeOExW8ggXveW1Jzp6aYMJ2SQkZJyA==
+  dependencies:
+    apollo-link "^1.2.11"
+    apollo-link-batch "^1.1.12"
+    apollo-link-http-common "^0.2.13"
+    tslib "^1.9.3"
+
+apollo-link-batch@^1.1.12:
+  version "1.1.12"
+  resolved "https://registry.yarnpkg.com/apollo-link-batch/-/apollo-link-batch-1.1.12.tgz#64eb231082f182b0395ef7ab903600627f6c7fe8"
+  integrity sha512-6NqLiB9tEGxRiyhtnX/7CPHkmFG0IXfEP7pC5kirhjV+4KxqBaWvJnJGKpGp7Owgdph7KJlV+9+niOKEkcwreg==
+  dependencies:
+    apollo-link "^1.2.11"
+    tslib "^1.9.3"
+
 apollo-link-dedup@^1.0.0:
   version "1.0.10"
   resolved "https://registry.yarnpkg.com/apollo-link-dedup/-/apollo-link-dedup-1.0.10.tgz#7b94589fe7f969777efd18a129043c78430800ae"
@@ -1405,7 +1423,7 @@ apollo-link-dedup@^1.0.0:
   dependencies:
     apollo-link "^1.2.3"
 
-apollo-link-http-common@^0.2.8:
+apollo-link-http-common@^0.2.13, apollo-link-http-common@^0.2.8:
   version "0.2.13"
   resolved "https://registry.yarnpkg.com/apollo-link-http-common/-/apollo-link-http-common-0.2.13.tgz#c688f6baaffdc7b269b2db7ae89dae7c58b5b350"
   integrity sha512-Uyg1ECQpTTA691Fwx5e6Rc/6CPSu4TB4pQRTGIpwZ4l5JDOQ+812Wvi/e3IInmzOZpwx5YrrOfXrtN8BrsDXoA==