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@data-client/core
Advanced tools
Async State Management without the Management. REST, GraphQL, SSE, Websockets, Fetch
Reducer/flux normalized, framework-agnostic data store. Includes managers/middleware, global referential equality guarantees, automatic expiry policies, data normalization. Consumes TypeScript Standard Endpoints
function useSuspense(endpoint, ...args)
const state = useCacheState();
const controller = useController();
const key = args[0] !== null ? endpoint.key(...args) : '';
const cacheResults = key && state.endpoints[key];
const meta = state.meta[key];
// Compute denormalized value
const { data, expiryStatus, expiresAt } = useMemo(() => {
return controller.getResponse(endpoint, ...args, state);
}, [
cacheResults,
state.indexes,
state.entities,
state.entityMeta,
meta,
key,
]);
const error = controller.getError(endpoint, ...args, state);
// If we are hard invalid we must fetch regardless of triggering or staleness
const forceFetch = expiryStatus === ExpiryStatus.Invalid;
const maybePromise = useMemo(() => {
// null params mean don't do anything
if ((Date.now() <= expiresAt && !forceFetch) || !key) return;
return controller.fetch(endpoint, ...args);
// we need to check against serialized params, since params can change frequently
}, [expiresAt, controller, key, forceFetch, state.lastReset]);
// fully "valid" data will not suspend even if it is not fresh
if (expiryStatus !== ExpiryStatus.Valid && maybePromise) {
throw maybePromise;
}
if (error) throw error;
return data;
}
FAQs
Async State Management without the Management. REST, GraphQL, SSE, Websockets, Fetch
The npm package @data-client/core receives a total of 969 weekly downloads. As such, @data-client/core popularity was classified as not popular.
We found that @data-client/core demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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