feat(xychart): add ssr to xychart

[nagiek]

Fixes #1478

🚀 Enhancements

• Allows data to be set upfront in as well as in in child Series components.
• Fixes a chicken-and-egg issue where we delay rendering until data is passed into the children Series components.

[nagiek]

@williaster quick ping for workflow approval, thanks!

[williaster]

Thanks for the PR @nagiek 🙏 . My main concern with this approach is that two ways to pass data (to XYChart or to *Series) may cause confusion.

I just tried implementing the useComponentWillMount approach but the () => unregisterData(dataKeys) we currently return in useEffect for unmounting components is causing problems/I can't quite get it to work right. I'll keep tinkering a bit and think about whether there are any alternatives to your suggested approach.

[nagiek]

No problem, I understand. I kept working on my version but I agree it’s a different technique.

What about splitting the existing useEffect call into two calls? One to useMemo containing registerData, and one to useEffect containing unregisterData?

[nagiek]

Quick follow up, thank you!

[ThnxFredrik]

Hello! I’m suffering the same issue over here. How is the progress looking, can I help out some how?

[mscottford]

@nagiek Are you using this approach in production? I'd love to see SSR supported.

[mscottford]

@williaster

My main concern with this approach is that two ways to pass data (to XYChart or to *Series) may cause confusion.

Would a separate component make sense? Similar to how there are separate Animated and not-Animated components, there could be a ServerXYChart and a ClientXYChart, which could be aliased as just XYChart for backward compatibility. This way the different components could take different approaches to loading the data, and any duplicated functionality could be de-duplicated behind the scenes.

[pedroapfilho]

Any updates on this? Doing what @mscottford said, creating a ServerXYChart, would fix the issues that you commented about @williaster? Are these still issues on the current react version?