Expose shallow routing as a prop.

[lucianojd]

Shallow routing can be useful if you just want to sync the atom into the URL without refreshing the page.

[koichik]

Thanks, really nice catch!
I didn't notice that gSSP was called when the state was synced into the URL, that's bad.
So we should always use shallow: true by default?
I don't think we need to execute gSSP every time the state sync.

[lucianojd]

Thanks, really nice catch! I didn't notice that gSSP was called when the state was synced into the URL, that's bad. So we should always use shallow: true by default? I don't think we need to execute gSSP every time the state sync.

Thank you! I agree I think shallow: true should be the default.

I can't see many use cases where you would want to run gSSP after updating a recoil value over just having the value stored into the URL. For my use case, I am using URL sync as a way to preserve the state of the page if someone copy-pastes the link to share the page with someone else.

I updated the PR. Let me know what you think.

[koichik]

I can't see many use cases where you would want to run gSSP after updating a recoil value over just having the value stored into the URL.

I agree! Thus, I don't think we need to add shallow option to RecoilURLSync{JSON,Transit}Next.
Instead, can you just add shallow: true to push/replace in useSyncURLNext?

[lucianojd]

I can't see many use cases where you would want to run gSSP after updating a recoil value over just having the value stored into the URL.

I agree! Thus, I don't think we need to add shallow option to RecoilURLSync{JSON,Transit}Next. Instead, can you just add shallow: true to push/replace in useSyncURLNext?

I see what you mean now. I have updated it to always use shallow push for RecoilURLSync{JSON,Transit}Next.

[koichik]

Thanks! Also, can you remove shallow option from the README? (except fixing typo 🤣)

[lucianojd]

Thanks! Also, can you remove shallow option from the README? (except fixing typo rofl)

README should be fixed now.

[koichik]

LGTM!

[koichik]

Thanks for your contribution!