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Confusion about Batching and RequestResolver in API Caching

So I have a fairly dumb architectural question but I can't seem to figure it out on my own

https://www.effect.website/docs/core-concepts/batching-caching in the docs, when talking about

batching

batching

I'm a bit confused by what is actually being batched.

What does

RequestResolver

RequestResolver

actually do? Does it figure out on it's own that the same API

getUserById

getUserById

is being called multiple times and only does it the required minimum times or does it do some sort of batching à la graphQL where multiples requests will be sent in just one HTTP request? (and thus would need some sort of support from the server being called)

Batching & Caching – Effect

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