WatchQuery vs Subscription

[EveryPerspective]

I am looking for the example of watchquery on the official examples, but only subscription example only exists.

I am testing watchQuery myself, below is the code i wrote. but it doesn't seem like data streaming works properly.
can you guys help me or share watchquery examples?

---

class TimelineFollowingList extends StatelessWidget {
const TimelineFollowingList({Key? key}) : super(key: key);

@OverRide
Widget build(BuildContext context) {
final watchQuery = WatchQueryOptions(
document: gql(userfollowing()),
variables: {
'search': id,
'start': 0,
'end': 1
},
fetchPolicy: FetchPolicy.networkOnly,
errorPolicy: ErrorPolicy.ignore,
cacheRereadPolicy: CacheRereadPolicy.ignoreAll,
);
return Query(
options: watchQuery,
builder: ((result, {fetchMore, refetch}) {
if (result.hasException) {
return Center(child: Text(result.exception.toString()));
}
if (result.isLoading) {
return const Center(
child: Text('Loading'),
);
}
print('===========watchquery test${result.data}');

    return Container();
  }),
);

}
}

---

Also, do I need to use susbscription if I need to want to stream data from server? please compare two(WatchQuery vs Subscription) and which one is better?
(if "watchqueryoption" is going to be deprecated somewhere in the future, I will use subscription)?

Belows are what I am think of.

the benifit of watchquery

• doesn't need to setup another link for receiving data from server.
• can use both query(when I don't need to stream data from the server) and watchquery with the same query statement .

subscription

• has official example to follow
• functionally better than watchquery (??)