graphql-react/cacheEntrySet.mjs

A GraphQL client for React using modern context and hooks APIs that’s lightweight (< 4 kB) but powerful; the first Relay and Apollo alternative with server side rendering.

// @ts-check

import Cache from "./Cache.mjs";

/** @typedef {import("./Cache.mjs").CacheEventMap} CacheEventMap */

/**
 * Sets a {@link Cache.store cache store} entry, dispatching the
 * {@linkcode Cache} event {@link CacheEventMap.set `set`}.
 * @param {Cache} cache Cache to update.
 * @param {import("./Cache.mjs").CacheKey} cacheKey Cache key.
 * @param {import("./Cache.mjs").CacheValue} cacheValue Cache value.
 */
export default function cacheEntrySet(cache, cacheKey, cacheValue) {
  if (!(cache instanceof Cache))
    throw new TypeError("Argument 1 `cache` must be a `Cache` instance.");

  if (typeof cacheKey !== "string")
    throw new TypeError("Argument 2 `cacheKey` must be a string.");

  cache.store[cacheKey] = cacheValue;

  cache.dispatchEvent(
    new CustomEvent(`${cacheKey}/set`, {
      detail: {
        cacheValue,
      },
    })
  );
}