Mocking with MSW stops working when replacing document cache with Graphcache

[zorzysty]

My setup uses MSW for mocking requests. It works well with document cache. But as soon as I switch to graphcache, data is no longer provided to components by useQuery hook. It goes straight from undefined when loading, to null when request completes.

The only difference in code is changing where I import cacheExchange from and changing cacheExchange to cacheExchange({}) in the exchanges array.

What could be the reason for that?

[JoviDeCroock]

The reason is most likely that your data is missing the __typename property, i.e. the selection-set is not fully completed. You can test this out by leveraging the logger property on the construction of your cache-exchange.

[zorzysty]

Thank you! That helped me solve the problem.