@data-client/normalizr/legacy/buildQueryKey.js

Normalizes and denormalizes JSON according to schema for Redux and Flux applications

import { queryKey as arrayQuery } from './schemas/Array.js';
import { queryKey as objectQuery } from './schemas/Object.js';
/**
 * Build the result parameter to denormalize from schema alone.
 * Tries to compute the entity ids from params.
 */
export default function buildQueryKey(schema, args, getEntity, getIndex) {
  // schema classes
  if (canQuery(schema)) {
    return schema.queryKey(args, buildQueryKey, getEntity, getIndex);
  }

  // plain case
  if (typeof schema === 'object' && schema) {
    const method = Array.isArray(schema) ? arrayQuery : objectQuery;
    return method(schema, args, buildQueryKey, getEntity, getIndex);
  }

  // fallback for things like null or undefined
  return schema;
}
export function canQuery(schema) {
  return !!schema && typeof schema.queryKey === 'function';
}

// this only works if entity does a lookup first to see if its entity is 'found'
export function validateQueryKey(queryKey) {
  if (queryKey === undefined) return false;
  if (queryKey && typeof queryKey === 'object' && !Array.isArray(queryKey)) {
    return Object.values(queryKey).every(validateQueryKey);
  }
  return true;
}
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