Strict Query Keys Option

[rametta]

Hello, I was wondering if I could request a feature for enforcing "strict" query keys, in the sense that the query key array should not contain any null or undefined values.

I was thinking there could be an option for useQuery that can be called strict or strictQueryKeys, and if it's true, react-query will check the query key before any fetch attempt, and if the query key contains any null or undefined values, it will not fetch, or it will automatically set the enabled option to false.

We have a fairly large codebase at my work, and we have a workaround for this, which was to create a wrapper around useQuery, called useStrictQuery, but it would be nice if this was included in the lib natively.

Any thoughts?

[rametta]

I've opened a PR here to demonstrate the idea further: #2186