[Notes of a programmer]: Apollo store updates

These are my notes. Fuck you. It's just what I do. If you want a complete overview, better read the original documentation, haha :D https://www.apollographql.com/docs/react/features/cache-updates.html

Apollo store can be seen in RND

apollo identifies an objet by its __typename and id (must be _id or id) let's call it object-id htey call it dataIDFromObject) __typename is automatically added

Apollo 2.0 store is 5-10x faster because it doesn't need redux cache

There are 4 ways to get/change data from the store

1. Automatic store updates happen if mutation results contain the ID and the affected field! Figure out a way to do this with sequelize!

2. refetchQueries: [{query, variables }] supply that to mutate

3. update: (store, {data: {....} }) => { full cotrol over the store via store.readquery, store.readfragment, store.writequery, store.writefragment with ({query, ?data}) as options }

4. optimisticResponse { optimisticObject } <-- See docs for good examples

• option 1 is the best but may only work on updates dat return the right format. Therefore it is essential to use fragments so that no attributes can be undefined.
• option 3 is never needed but may be more efficient than option 2. but it's also more boilerplate. However, there are gonna be more straightforward solutions to option 3 in the future.
• option 2 always works but launches more queries, obviously, which can be predicted sometimes... to keep the MVP simple use this as much as possible.
• option 4 is awesome for instant gratification. if the server starts being slower, this will deliver a very smooth UX. but it's a lot of boilerplate.