refactor: better redis utility

src/ua.js

@@ -1,6 +1,6 @@
 'use strict'
 
-const redis = require('./util/redis').ua
+const redis = require('./util/redis/ua')
 const ua = require('@microlink/ua')(redis)
 
 module.exports = async (req, _, next) => {

src/util/keyv.js

@@ -6,7 +6,7 @@ const KeyvMulti = require('@keyvhq/multi')
 const Keyv = require('@keyvhq/core')
 const assert = require('assert')
 
-const redis = require('./redis').cache
+const redis = require('./redis')
 
 const { CACHE_TTL } = require('../constant')
 

src/util/rate-limiter.js

@@ -4,7 +4,7 @@ const RateLimiter = require('async-ratelimiter')
 
 const { RATE_LIMIT_WINDOW, RATE_LIMIT } = require('../constant')
 
-const db = require('./redis').cache
+const db = require('./redis')
 
 module.exports = db
   ? new RateLimiter({

src/util/redis.js → src/util/redis/create.js

@@ -2,18 +2,11 @@
 
 const Redis = require('ioredis')
 
-const { REDIS_URI, REDIS_UA_URI } = require('../constant')
-
-const createClient = uri =>
+module.exports = uri =>
   uri
     ? new Redis(uri, {
       lazyConnect: true,
       enableAutoPipelining: true,
       maxRetriesPerRequest: 2
     })
     : undefined
-
-module.exports = {
-  cache: createClient(REDIS_URI),
-  ua: createClient(REDIS_UA_URI)
-}

src/util/redis/index.js

@@ -0,0 +1,5 @@
+'use strict'
+
+const { REDIS_URI } = require('../../constant')
+
+module.exports = require('./create')(REDIS_URI)

src/util/redis/ua.js

@@ -0,0 +1,5 @@
+'use strict'
+
+const { REDIS_UA_URI } = require('../../constant')
+
+module.exports = require('./create')(REDIS_UA_URI)