how to replace "OptimisticCache" in GraphQL flutter?

Question

I just upgrade graphql_flutter version "3.1.0" to "5.0.0-nullsafety.5".

IDE has an exception: "The method 'OptimisticCache' isn't defined for the type 'GraphQLService'."

My code:

    ValueNotifier(
     GraphQLClient(
      cache: OptimisticCache(dataIdFromObject: typenameDataIdFromObject),
      link: link,
      defaultPolicies: DefaultPolicies(
        watchQuery: Policies(
          fetch: FetchPolicy.noCache,
        ),
        query: Policies(
          fetch: FetchPolicy.noCache,
        ),
        mutate: Policies(
          fetch: FetchPolicy.noCache,
        ),
      ),
    ),
  )

How to fix it?

Did you try to use a GraphQLCache()? It seems that you can specify through the GraphQLCache() instance that you want to use an OptimisticCache. See the documentation of graphql_flutter for GraphQLCache: pub.dev/documentation/graphql/latest/graphql/… — BLKKKBVSIK
– BLKKKBVSIK, Commented May 29, 2021 at 11:05

Larry Moore · Accepted Answer · 2021-10-16 06:19:31Z

-1

final GraphQLCache cache = GraphQLCache(
  dataIdFromObject: uuidFromObject,
);

answered Oct 16, 2021 at 6:19

Larry Moore

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1 Comment

Tyler2P Over a year ago

Please don't post only code as an answer, but also provide an explanation what your code does and how it solves the problem of the question. Answers with an explanation are usually more helpful and of better quality, and are more likely to attract upvotes.

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