fix ws browser

Author: ivansglazunov

client.tsx

@@ -4,11 +4,15 @@ import { ApolloLink, concat, split } from 'apollo-link';
 import { WebSocketLink } from 'apollo-link-ws';
 import fetch from 'node-fetch';
 import path from 'path';
-import ws from 'ws';
 import { debug } from './debug';
 
 const moduleLog = debug.extend('client')
 
+let ws;
+if (typeof(window) !== 'object') {
+  ws = require('ws');
+}
+
 const DEEP_FOUNDATION_HASURA_RELATIVE: boolean | undefined = ((r) => r ? !!+r : undefined)(process.env.DEEP_FOUNDATION_HASURA_RELATIVE);
 const NEXT_PUBLIC_DEEP_FOUNDATION_HASURA_RELATIVE: boolean | undefined = ((r) => r ? !!+r : undefined)(process.env.NEXT_PUBLIC_DEEP_FOUNDATION_HASURA_RELATIVE);