@matters/apollo-response-cache/dist/utils.js

Caching and invalidation mechanisms (plugins, directives) of Apollo GraphQL

import { CACHE_KEY_PREFIX_FQC, CACHE_KEY_PREFIX_NODE_FQC } from './enums.js';
/**
 * Generate cache key of Node and FQC hashes array mapping
 *
 * e.g. ['Article', 18] -> 'node-fqcs:Article:18'
 */
export const toNodeFQCKey = (node) => {
    return `${CACHE_KEY_PREFIX_NODE_FQC}:${node.type}:${node.id}`;
};
/**
 * Record Node:FQC mapping
 *
 */
export const recordNodeFQCMapping = ({ nodeFQCKeys, fqcKey, ttl, redis, }) => {
    try {
        nodeFQCKeys.forEach((cacheKey) => {
            redis.sadd(cacheKey, fqcKey);
            redis.expire(cacheKey, ttl);
        });
    }
    catch (error) {
        console.warn(error);
    }
};
/**
 * Invalidate full query caches by the given related node keys
 */
export const invalidateFQC = async ({ node, redis, }) => {
    try {
        const key = toNodeFQCKey(node);
        const hashes = await redis.smembers(key);
        hashes.map(async (hash) => {
            await redis
                .pipeline()
                .del(`${CACHE_KEY_PREFIX_FQC}${hash}`)
                .srem(key, hash)
                .exec();
        });
    }
    catch (error) {
        console.warn(error);
    }
};