better unsubscribe, startup stagger

src/ORM/client/client.service.ts

@@ -56,6 +56,8 @@ export class ClientService {
 
         const client = this.clientRepository.create(partialClient);
         this.bulkInsertClients.push(client);
+        // wait for the bulk insert to go though
+        // while we await node is free to service other requests
         await setTimeout(2000);
         return client;
     }

src/main.ts

@@ -3,6 +3,7 @@ import { NestFactory } from '@nestjs/core';
 import { FastifyAdapter, NestFastifyApplication } from '@nestjs/platform-fastify';
 import * as bitcoinjs from 'bitcoinjs-lib';
 import { useContainer } from 'class-validator';
+import { setTimeout } from 'timers/promises';
 import * as ecc from 'tiny-secp256k1';
 
 import { AppModule } from './app.module';
@@ -20,6 +21,13 @@ async function bootstrap() {
   // };
 
   //const app = await NestFactory.create<NestFastifyApplication>(AppModule, new FastifyAdapter({ https: httpsOptions }));
+
+  // stagger startup
+  if (process.env.NODE_APP_INSTANCE != null) {
+    await setTimeout(parseInt(process.env.NODE_APP_INSTANCE) * 5000);
+  }
+
+
   const app = await NestFactory.create<NestFastifyApplication>(AppModule, new FastifyAdapter());
   app.setGlobalPrefix('api')
   app.useGlobalPipes(

src/models/StratumV1Client.ts

@@ -6,7 +6,7 @@ import { validate, ValidatorOptions } from 'class-validator';
 import * as crypto from 'crypto';
 import { Socket } from 'net';
 import PromiseSocket from 'promise-socket';
-import { firstValueFrom, takeUntil } from 'rxjs';
+import { firstValueFrom, Subscription } from 'rxjs';
 
 import { AddressSettingsService } from '../ORM/address-settings/address-settings.service';
 import { BlocksService } from '../ORM/blocks/blocks.service';
@@ -16,7 +16,6 @@ import { ClientService } from '../ORM/client/client.service';
 import { BitcoinRpcService } from '../services/bitcoin-rpc.service';
 import { NotificationService } from '../services/notification.service';
 import { IJobTemplate, StratumV1JobsService } from '../services/stratum-v1-jobs.service';
-import { EasyUnsubscribe } from '../utils/EasyUnsubscribe';
 import { eRequestMethod } from './enums/eRequestMethod';
 import { eResponseMethod } from './enums/eResponseMethod';
 import { eStratumErrorCode } from './enums/eStratumErrorCode';
@@ -30,12 +29,13 @@ import { SuggestDifficulty } from './stratum-messages/SuggestDifficultyMessage';
 import { StratumV1ClientStatistics } from './StratumV1ClientStatistics';
 
 
-export class StratumV1Client extends EasyUnsubscribe {
+export class StratumV1Client {
 
     private clientSubscription: SubscriptionMessage;
     private clientConfiguration: ConfigurationMessage;
     private clientAuthorization: AuthorizationMessage;
     private clientSuggestedDifficulty: SuggestDifficulty;
+    private stratumSubscription: Subscription;
 
     private statistics: StratumV1ClientStatistics;
     private stratumInitialized = false;
@@ -47,6 +47,7 @@ export class StratumV1Client extends EasyUnsubscribe {
 
     public sessionStart: Date;
 
+
     constructor(
         public readonly promiseSocket: PromiseSocket<Socket>,
         private readonly stratumV1JobsService: StratumV1JobsService,
@@ -58,7 +59,6 @@ export class StratumV1Client extends EasyUnsubscribe {
         private readonly configService: ConfigService,
         private readonly addressSettingsService: AddressSettingsService
     ) {
-        super();
 
         this.promiseSocket.socket.on('data', (data: Buffer) => {
             data.toString()
@@ -80,6 +80,10 @@ export class StratumV1Client extends EasyUnsubscribe {
         console.log(`New client ID: : ${this.extraNonceAndSessionId}`);
     }
 
+    public destroy() {
+        this.stratumSubscription.unsubscribe();
+    }
+
     private getRandomHexString() {
         const randomBytes = crypto.randomBytes(4); // 4 bytes = 32 bits
         const randomNumber = randomBytes.readUInt32BE(0); // Convert bytes to a 32-bit unsigned integer
@@ -289,8 +293,7 @@ export class StratumV1Client extends EasyUnsubscribe {
                 bestDifficulty: 0
             });
 
-            this.stratumV1JobsService.newMiningJob$.pipe(
-                takeUntil(this.easyUnsubscribe)
+            this.stratumSubscription = this.stratumV1JobsService.newMiningJob$.pipe(
             ).subscribe(async (jobTemplate) => {
                 try {
                     await this.sendNewMiningJob(jobTemplate);

src/utils/EasyUnsubscribe.ts

@@ -1,10 +0,0 @@
-import { Subject } from 'rxjs';
-
-export class EasyUnsubscribe {
-    protected easyUnsubscribe = new Subject<void>();
-
-    public destroy(): void {
-        this.easyUnsubscribe.next();
-        this.easyUnsubscribe.complete();
-    }
-}