Add back in functionality to select different redis DB's per client

packages/backend-core/src/redis/init.ts

@@ -14,10 +14,7 @@ async function init() {
   appClient = await new Client(utils.Databases.APP_METADATA).init()
   cacheClient = await new Client(utils.Databases.GENERIC_CACHE).init()
   lockClient = await new Client(utils.Databases.LOCKS).init()
-  writethroughClient = await new Client(
-    utils.Databases.WRITE_THROUGH,
-    utils.SelectableDatabase.WRITE_THROUGH
-  ).init()
+  writethroughClient = await new Client(utils.Databases.WRITE_THROUGH).init()
 }
 
 export async function shutdown() {

packages/backend-core/src/redis/redis.ts

@@ -183,6 +183,9 @@ class RedisWrapper {
     CLOSED = false
     init(this._select)
     await waitForConnection(this._select)
+    if (this._select) {
+      this.getClient().select(this._select)
+    }
     return this
   }
 

packages/backend-core/src/redis/utils.ts

@@ -41,7 +41,7 @@ export enum Databases {
  */
 export enum SelectableDatabase {
   DEFAULT = 0,
-  WRITE_THROUGH = 1,
+  SOCKET_IO = 1,
   UNUSED_1 = 2,
   UNUSED_2 = 3,
   UNUSED_3 = 4,

packages/server/src/utilities/redis.ts

@@ -15,7 +15,7 @@ export async function init() {
   devAppClient = new redis.Client(redis.utils.Databases.DEV_LOCKS)
   debounceClient = new redis.Client(redis.utils.Databases.DEBOUNCE)
   flagClient = new redis.Client(redis.utils.Databases.FLAGS)
-  socketClient = new redis.Client(redis.utils.Databases.SOCKET_IO)
+  socketClient = new redis.Client(redis.utils.Databases.SOCKET_IO, redis.utils.SelectableDatabase.SOCKET_IO)
   await devAppClient.init()
   await debounceClient.init()
   await flagClient.init()