@backstage/backend-defaults/dist/entrypoints/cache/CacheClient.cjs.js

Backend defaults used by Backstage backend apps

'use strict';

var crypto = require('crypto');
var types = require('./types.cjs.js');

class DefaultCacheClient {
  #client;
  #clientFactory;
  #options;
  constructor(client, clientFactory, options) {
    this.#client = client;
    this.#clientFactory = clientFactory;
    this.#options = options;
  }
  async get(key) {
    const k = this.getNormalizedKey(key);
    const value = await this.#client.get(k);
    return value;
  }
  async set(key, value, opts = {}) {
    const k = this.getNormalizedKey(key);
    const ttl = opts.ttl !== void 0 ? types.ttlToMilliseconds(opts.ttl) : void 0;
    await this.#client.set(k, value, ttl);
  }
  async delete(key) {
    const k = this.getNormalizedKey(key);
    await this.#client.delete(k);
  }
  withOptions(options) {
    const newOptions = { ...this.#options, ...options };
    return new DefaultCacheClient(
      this.#clientFactory(newOptions),
      this.#clientFactory,
      newOptions
    );
  }
  /**
   * Ensures keys are well-formed for any/all cache stores.
   */
  getNormalizedKey(candidateKey) {
    const wellFormedKey = Buffer.from(candidateKey).toString("base64");
    if (wellFormedKey.length < 200) {
      return wellFormedKey;
    }
    return crypto.createHash("sha256").update(candidateKey).digest("base64");
  }
}

exports.DefaultCacheClient = DefaultCacheClient;
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