fix apollo boost config (#512)

* add fetch on apollo-boost

* fix eslint

packages/core/package.json

@@ -53,6 +53,7 @@
  "@turf/points-within-polygon": "6.5.0",
  "apicache": "1.6.3",
  "apollo-boost": "0.4.9",
+ "apollo-link-http": "1.5.17",
  "aws-sdk": "2.1034.0",
  "axios": "0.24.0",
  "axios-retry": "3.3.1",

packages/core/src/subgraph/config.ts

@@ -1,16 +1,21 @@
-// To use Apollo Client without a browser, is necessary to polyfill or provide a fetch method.
-import 'cross-fetch/polyfill';
-
-import ApolloClient, { InMemoryCache } from 'apollo-boost';
+import { ApolloClient, InMemoryCache } from 'apollo-boost';
+import { HttpLink } from 'apollo-link-http';
+import { fetch } from 'cross-fetch';
 
 import config from '../config';
 
 export const clientDAO = new ApolloClient({
- uri: config.subgraphUrl,
+ link: new HttpLink({
+ uri: config.subgraphUrl,
+ fetch,
+ }),
  cache: new InMemoryCache(),
 });
 
 export const clientCouncil = new ApolloClient({
- uri: config.councilSubgraphUrl,
+ link: new HttpLink({
+ uri: config.councilSubgraphUrl,
+ fetch,
+ }),
  cache: new InMemoryCache(),
 });