Comments (3)
Do you do this in a single request lifecycle? If so, use myLoader.clear(key)
, if you're sharing the dataloader instance between requests, see #62
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Yeah thanks. I've learned that I need to clear on mutation. Or...clear if load returns null.
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Typically returning null
from a load implies that the value with that key is known not to exist, which is different from not being found, the first is a successful load (of an empty result) while the latter is an errored load. Cache behavior is key to this difference. For instance, if something is known not to exist, repeatedly fetching it would be unhelpful.
Having your batch function throw/return an Error when values have failed to load will ensure the cache is skipped.
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Related Issues (20)
- Move CI to GitHub Actions
- Setup publish token for CI
- Change default branch `master` to `main` HOT 1
- Setup Renovate Bot to keep dependencies up to date HOT 3
- [QUESTION] Why aren't keys being de-duplicated even when the cache is disabled? HOT 6
- ✨ [REQUEST]: Add examples for cacheKeyFn and cacheMap HOT 2
- [REQUEST]: How to pass auth headers to dataloader HOT 4
- [QUESTION] README.md doesn't show on npmjs.com HOT 2
- CacheMap.get calls should await the promised value HOT 1
- [QUESTION] Release changes? HOT 9
- [QUESTION] name is now required in options? HOT 4
- [BUG] Readme is missing from NPM HOT 2
- [BUG] `this` context not available in typescript definitions
- [BUG] Use caution with `jest.useFakeTimers()` HOT 1
- [REQUEST] support vercel edge functions by default HOT 4
- Ever considered the use of `queueMicrotask`? HOT 1
- Coalescing multiple load() calls HOT 3
- [REQUEST] Unify the way `load` and `loadMany` handle errors
- -
- [REQUEST] Add batch grouping
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