50 lines
1.0 KiB
JavaScript
50 lines
1.0 KiB
JavaScript
const redis = require('redis')
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const createLRUCache = require('lru-cache')
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const createRedisCache = (redisURL) => {
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const client = redis.createClient(redisURL)
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const createKey = (key) => 'registry:' + key
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const set = (key, value, expiry) => {
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client.set(createKey(key), JSON.stringify(value))
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client.pexpire(createKey(key), expiry)
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}
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const get = (key, callback) => {
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client.get(createKey(key), (error, value) => {
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callback(error, value && JSON.parse(value))
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})
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}
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const del = (key) => {
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client.del(createKey(key))
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}
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return { set, get, del }
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}
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const createMemoryCache = (options) => {
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const cache = createLRUCache(options)
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const set = (key, value, expiry) => {
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cache.set(key, value, expiry)
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}
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const get = (key, callback) => {
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callback(null, cache.get(key))
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}
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const del = (key) => {
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cache.del(key)
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}
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return { set, get, del }
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}
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const RegistryCache = process.env.REDIS_URL
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? createRedisCache(process.env.REDIS_URL)
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: createMemoryCache({ max: 1000 })
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module.exports = RegistryCache
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