Add support for second `config` param

app/assets/javascripts/lib/graphql.js

@@ -3,12 +3,12 @@ import { InMemoryCache } from 'apollo-cache-inmemory';
 import { createUploadLink } from 'apollo-upload-client';
 import csrf from '~/lib/utils/csrf';
 
-export default (resolvers = {}, baseUrl = '') => {
+export default (resolvers = {}, config = {}) => {
   let uri = `${gon.relative_url_root}/api/graphql`;
 
-  if (baseUrl) {
+  if (config.baseUrl) {
     // Prepend baseUrl and ensure that `///` are replaced with `/`
-    uri = `${baseUrl}${uri}`.replace(/\/{3,}/g, '/');
+    uri = `${config.baseUrl}${uri}`.replace(/\/{3,}/g, '/');
   }
 
   return new ApolloClient({
@@ -18,7 +18,7 @@ export default (resolvers = {}, baseUrl = '') => {
         [csrf.headerKey]: csrf.token,
       },
     }),
-    cache: new InMemoryCache(),
+    cache: new InMemoryCache(config.cacheConfig),
     resolvers,
   });
 };