refactor(cardano-services): optimize the aggregation of addresses subscribed by clients

Author: iccicci

packages/cardano-services/src/WsServer/server.ts

@@ -220,9 +220,9 @@ export class CardanoWsServer extends WsProvider {
         };
 
         const loadTransactions = async () => {
-          const addressesSet = new Set<Cardano.PaymentAddress>();
-          for (const ws of this.wss.clients) for (const address of ws.addresses) addressesSet.add(address);
-          const addresses = [...addressesSet];
+          const addressesObj: Record<Cardano.PaymentAddress, true> = {};
+          for (const ws of this.wss.clients) for (const address of ws.addresses) addressesObj[address] = true;
+          const addresses = Object.keys(addressesObj) as Cardano.PaymentAddress[];
 
           if (debugLog) this.logger.debug(`Transactions for notification ${notification} ${JSON.stringify(addresses)}`);