Apollo Client (fetch-policy & nextFetchPolicy)

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1

Hi there! I have a question:

If we use hook useQuery with fetchPolicy: ‘network-only’ & nextFetchPolicy: ‘cache-first’ we’ll get next results:

  1. First mount of hook: cache is empty, request send, everything works fine
  2. Second mount of hook: returns data from cache but request sends again

Why in second case request sends if we use nextFetchPolicy ‘cache-first’?

@apollo/client 3.6.9 version

2

fetchPolicy is used every time the query mounts. nextFetchPolicy is used for every query execution after the query is already mounted (e.g. cache updates).

3

If nextFetchPolicy is used only after cache updates - why the useQuery hook returns data from cache with ‘fetchPolicy: ‘network-only’, nextFetchPolicy: ‘cache-first’’ with second hook mount?

4

Not sure. It’s not supposed to.