feat(backend): export 'redisPrefix', 'generateRedisPrefix', 'getRedis…

…Options' (#11)

packages/backend/index.js

@@ -7,7 +7,16 @@ import initValidateSchema from './features/validateSchema.js'
 import initServerAggregate from './features/serverAggregate.js'
 import initAccessControl from './features/accessControl.js'
 
-export { redis, redlock, Redlock, getRedis, Redis } from './redis/index.js'
+export {
+  prefix as redisPrefix,
+  generatePrefix as generateRedisPrefix,
+  getRedisOptions,
+  redis,
+  redlock,
+  Redlock,
+  getRedis,
+  Redis
+} from './redis/index.js'
 export { db, mongo, mongoClient, createMongoIndex, sqlite } from './db/index.js'
 
 const usersConnectionCounter = {}

packages/backend/redis/index.js

@@ -2,23 +2,16 @@ import Redlock from 'redlock'
 import redisPubSub from 'sharedb-redis-pubsub'
 import { getRedis, Redis, RedisMock } from './getRedis.js'
 
-const enableRedis = !process.env.NO_REDIS
-
-const getRedisOptions = {
-  enable: enableRedis,
-  opts: process.env.REDIS_OPTS,
-  url: process.env.REDIS_URL,
-  keyPrefix: generatePrefix({
-    mongoUrl: process.env.MONGO_URL,
-    baseUrl: process.env.BASE_URL
-  })
-}
-
-const RedisClient = enableRedis ? Redis : RedisMock
-export { RedisClient as Redis }
-export { getRedis }
-export const redis = getRedis(getRedisOptions)
-export const redisObserver = getRedis(getRedisOptions)
+const ENABLE_REDIS = !process.env.NO_REDIS
+
+const RedisClient = ENABLE_REDIS ? Redis : RedisMock
+export { RedisClient as Redis, getRedis, getRedisOptions, generatePrefix }
+export const redis = getRedis(getRedisOptions())
+export const redisObserver = getRedis(getRedisOptions())
+export const prefix = generatePrefix({
+  mongoUrl: process.env.MONGO_URL,
+  baseUrl: process.env.BASE_URL
+})
 
 export const pubsub = redisPubSub({
   client: redis,
@@ -29,6 +22,18 @@ export const redlock = getRedlock(redis)
 
 export { Redlock }
 
+function getRedisOptions ({ addPrefix = true }) {
+  const options = {
+    enable: ENABLE_REDIS,
+    opts: process.env.REDIS_OPTS,
+    url: process.env.REDIS_URL
+  }
+
+  if (addPrefix) options.keyPrefix = prefix
+
+  return options
+}
+
 function getRedlock (redis) {
   return new Redlock([redis], {
     driftFactor: 0.01,

packages/teamplay/server.js

@@ -4,7 +4,17 @@ import { connection, setConnection, setFetchOnly, setPublicOnly } from './orm/co
 export { default as ShareDB } from 'sharedb'
 export {
   default as createBackend,
-  mongo, mongoClient, createMongoIndex, redis, redlock, sqlite, getRedis, Redis
+  mongo,
+  mongoClient,
+  createMongoIndex,
+  redis,
+  redlock,
+  sqlite,
+  getRedis,
+  Redis,
+  getRedisOptions,
+  redisPrefix,
+  generateRedisPrefix
 } from '@teamplay/backend'
 
 export function initConnection (backend, {