Context best-practices

[gomorizsolt]

Looking for ideas..

• low-level examples if possible
• rephrase sentences if necessary

[thisismydesign]

Found these articles you mentioned the last time quite useful. Probably worth a mention in the guides as well:

• https://kentcdodds.com/blog/prop-drilling
• https://kentcdodds.com/blog/application-state-management-with-react/
• https://kentcdodds.com/blog/how-to-use-react-context-effectively/

[gomorizsolt]

Found these articles you mentioned the last time quite useful. Probably worth a mention in the guides as well:

Sounds good.

Brainstorm time. :)

I was thinking of these "one-time-fetch" scenarios the other day. Using contexts makes sense but I still feel like it's an overkill if the data is not consumed by multiple components. The other workaround I could think of is making use of localStorage to:

• persist data for the full lifetime of the app(even if it's closed, but we clan clean up the storage upon closing the app)
• access the data from the component where it's needed(note it's a single component)
• avoid re-fetching the data if it's already presented in the storage

It comes with the cost of a somewhat more complex logic(e.g. each time a certain component mounts we should check for the data's existence) but it's worth the "effort" imo.

Could you perceive other advantages/disadvantages?

[thisismydesign]

Why are contexts an overkill though?

[gomorizsolt]

Forget the proposal above, it seems it's indeed one of the best-practices of using contexts.

Use React's Context API for things that are truly necessary deep in the react tree. They don't have to be things you need everywhere in the application (you can render a provider anywhere in the app). This can really help avoid some issues with prop drilling. It's been noted that context is kinda taking us back to the days of global variables. The difference is that because of the way the API was designed, you can still statically find the source of the context as well as any consumers with relative ease.

Source: https://kentcdodds.com/blog/prop-drilling

[thisismydesign]

Closing in favor of ca945f6 and c-hive/basics#8

Thanks for gathering use cases in this PR!