[#129]feat: 경매 API socket 추가

ars/package.json

@@ -32,8 +32,10 @@
     "@nestjs/jwt": "^8.0.0",
     "@nestjs/passport": "^8.1.0",
     "@nestjs/platform-express": "^8.0.0",
+    "@nestjs/platform-socket.io": "^8.4.3",
     "@nestjs/schedule": "^1.0.2",
     "@nestjs/typeorm": "^8.0.3",
+    "@nestjs/websockets": "^8.4.3",
     "@types/cache-manager": "^3.4.3",
     "apollo-server-express": "^3.6.2",
     "axios": "^0.26.0",

ars/src/adapters/socket-io.adapters.ts

@@ -0,0 +1,9 @@
+import { IoAdapter } from '@nestjs/platform-socket.io';
+
+export class SocketIoAdapter extends IoAdapter {
+    createIOServer(port: number, options?: any): any {
+        const server = super.createIOServer(port, options);
+
+        return server;
+    }
+}

ars/src/apis/art/art.module.ts

@@ -6,6 +6,8 @@ import {
 import { TypeOrmModule } from '@nestjs/typeorm';
 import { ArtImage } from '../artImage/entities/artImage.entity';
 import { Engage } from '../engage/entities/engage.entity';
+import { EventGateway } from '../event/event.gateway';
+import { EventModule } from '../event/event.module';
 import { FileService } from '../file/file.service';
 import { LikeArtService } from '../likeArt/likeArt.service';
 import { Payment } from '../payment/entities/payment.entity';
@@ -31,6 +33,7 @@ import { LikeArt } from './entities/likeArt.entity';
     ElasticsearchModule.register({
       node: 'http://elasticsearch:9200',
     }),
+    EventModule,
   ],
   providers: [
     ArtResolver, //

ars/src/apis/art/entities/likeArt.entity.ts

@@ -1,12 +1,6 @@
 import { Field, ObjectType } from '@nestjs/graphql';
 import { User } from 'src/apis/user/entities/user.entity';
-import {
-  Column,
-  Entity,
-  ManyToOne,
-  PrimaryColumn,
-  PrimaryGeneratedColumn,
-} from 'typeorm';
+import { Column, Entity, ManyToOne, PrimaryGeneratedColumn } from 'typeorm';
 import { Art } from './art.entity';
 
 @Entity()
@@ -19,6 +13,6 @@ export class LikeArt {
   @Column()
   userId: string;
 
-  @ManyToOne(() => Art)
+  @ManyToOne(() => Art, { eager: true })
   art: Art;
 }

ars/src/apis/event/event.gateway.ts

@@ -0,0 +1,32 @@
+import {
+  WebSocketGateway,
+  WebSocketServer,
+  OnGatewayConnection,
+  OnGatewayDisconnect,
+} from '@nestjs/websockets';
+import { Server, Socket } from 'socket.io';
+
+@WebSocketGateway({
+  cors: {
+    origin: ['http://localhost:3000', 'https://mybackend.arios67.shop'],
+  },
+  namespace: /./,
+})
+export class EventGateway implements OnGatewayConnection, OnGatewayDisconnect {
+  constructor() {}
+  @WebSocketServer()
+  server: Server;
+
+  //소켓 연결시 유저목록에 추가
+  public handleConnection(client: Socket): void {
+    console.log('connected', client.id);
+    client.leave(client.id);
+    client.data.roomId = `room:lobby`;
+    client.join('room:lobby');
+  }
+
+  //소켓 연결 해제시 유저목록에서 제거
+  public handleDisconnect(client: Socket): void {
+    console.log('disonnected', client.id);
+  }
+}

ars/src/apis/event/event.module.ts

@@ -0,0 +1,8 @@
+import { Module } from '@nestjs/common';
+import { EventGateway } from './event.gateway';
+
+@Module({
+  providers: [EventGateway],
+  exports: [EventGateway],
+})
+export class EventModule {}

ars/src/apis/likeArt/likeArt.service.ts

@@ -16,21 +16,26 @@ export class LikeArtService {
   async find(userId, page) {
     const queryRunner = this.connection.createQueryRunner();
     await queryRunner.connect();
-    await queryRunner.startTransaction();
+    await queryRunner.startTransaction('SERIALIZABLE');
     try {
       let arts = [];
       if (page) {
-        arts = await queryRunner.manager.find(Art, {
+        arts = await queryRunner.manager.find(LikeArt, {
           take: 10,
           skip: 10 * (page - 1),
           where: { userId: userId },
+          relations: ['art'],
+          lock: { mode: 'pessimistic_write' },
         });
       } else {
         arts = await queryRunner.manager.find(LikeArt, {
           where: { userId },
           relations: ['art'],
+          lock: { mode: 'pessimistic_write' },
         });
       }
+
+      await queryRunner.commitTransaction();
       return arts.map((ele) => ele.art);
     } catch (error) {
       await queryRunner.rollbackTransaction();
@@ -43,14 +48,20 @@ export class LikeArtService {
   async like(artId, userId) {
     const queryRunner = this.connection.createQueryRunner();
     await queryRunner.connect();
-    await queryRunner.startTransaction();
+    await queryRunner.startTransaction('SERIALIZABLE');
     try {
-      const art = await queryRunner.manager.findOne(Art, { id: artId });
+      const art = await queryRunner.manager.findOne(Art, {
+        where: { id: artId },
+        lock: { mode: 'pessimistic_write' },
+      });
+      console.log(art);
       const prevLike = await queryRunner.manager.findOne(LikeArt, {
         where: {
           userId: userId,
-          art: artId,
+          art: art,
         },
+        relations: ['art'],
+        lock: { mode: 'pessimistic_write' },
       });
       if (!prevLike) {
         await queryRunner.manager.save(LikeArt, {
@@ -60,7 +71,7 @@ export class LikeArtService {
         await queryRunner.commitTransaction();
         return true;
       } else {
-        await queryRunner.manager.delete(LikeArt, { art: artId });
+        await queryRunner.manager.delete(LikeArt, { art: art });
         await queryRunner.commitTransaction();
         return false;
       }

ars/src/apis/payment/payment.module.ts

@@ -1,10 +1,10 @@
 import { Module } from '@nestjs/common';
-import { ElasticsearchService } from '@nestjs/elasticsearch';
 import { TypeOrmModule } from '@nestjs/typeorm';
 import { ArtService } from '../art/art.service';
 import { Art } from '../art/entities/art.entity';
 import { ArtImage } from '../artImage/entities/artImage.entity';
 import { Engage } from '../engage/entities/engage.entity';
+import { EventModule } from '../event/event.module';
 import { User } from '../user/entities/user.entity';
 import { UserService } from '../user/user.service';
 import { Payment } from './entities/payment.entity';
@@ -20,6 +20,7 @@ import { PaymentService } from './payment.service';
       Payment,
       Engage,
     ]),
+    EventModule,
   ],
   providers: [
     PaymentResolver, //

ars/src/apis/payment/payment.resolver.ts

@@ -39,6 +39,7 @@ export class PaymentResolver {
     }
   }
 
+  // 즉시 구매
   @UseGuards(GqlAuthAccessGuard)
   @Mutation(() => String)
   async instantBid(
@@ -55,7 +56,7 @@ export class PaymentResolver {
     return artId;
   }
 
-  // 입찰 API(임시)
+  // 레디스에 입찰 정보(작품, 현재 입찰가, 현재 상위 입찰자)
   @UseGuards(GqlAuthAccessGuard)
   @Mutation(() => [String])
   async Bid(
@@ -66,6 +67,7 @@ export class PaymentResolver {
     return await this.paymentService.call(artId, bid_price, currentUser.email);
   }
 
+  // DB 저장
   @UseGuards(GqlAuthAccessGuard)
   @Mutation(() => String)
   async saveBid(

ars/src/apis/payment/payment.service.ts

@@ -4,6 +4,7 @@ import { Cache } from 'cache-manager';
 import { Connection, LessThan, Repository } from 'typeorm';
 import { Art } from '../art/entities/art.entity';
 import { Engage } from '../engage/entities/engage.entity';
+import { EventGateway } from '../event/event.gateway';
 import { History } from '../history/entities/history.entity';
 import { User } from '../user/entities/user.entity';
 import { Payment } from './entities/payment.entity';
@@ -23,6 +24,8 @@ export class PaymentService {
     @Inject(CACHE_MANAGER)
     private readonly cacheManager: Cache,
 
+    private eventGateway: EventGateway,
+
     private readonly connection: Connection,
   ) {}
 
@@ -98,10 +101,9 @@ export class PaymentService {
     await this.artRepository.softDelete({ id: artId });
   }
 
-  // 입찰
+  // 레디스에 입찰 정보(작품, 현재 입찰가, 현재 상위 입찰자)
   async call(artId, bid_price, email) {
     const art = await this.artRepository.findOne(artId);
-
     const utc = new Date();
     const KR_TIME_DIFF = 9 * 60 * 60 * 1000;
     const currentTime = new Date(Number(utc) + Number(KR_TIME_DIFF));
@@ -114,7 +116,9 @@ export class PaymentService {
     return [bid_price, email];
   }
 
+  // DB 저장
   async save(artId, userId, bid_price) {
+    this.eventGateway.server.emit('message', bid_price);
     const queryRunner = this.connection.createQueryRunner();
     await queryRunner.connect();
     await queryRunner.startTransaction();
@@ -125,7 +129,6 @@ export class PaymentService {
           art: artId,
         },
       });
-
       await queryRunner.manager.update(
         Art,
         { id: artId },

ars/src/app.module.ts

@@ -15,7 +15,7 @@ import { ProfileModule } from './apis/profile/profile.module';
 import { HistoryModule } from './apis/history/history.module';
 import { ScheduleModule } from '@nestjs/schedule';
 import { PaymentModule } from './apis/payment/payment.module';
-import { setgroups } from 'process';
+import { EventModule } from './apis/event/event.module';
 
 @Module({
   imports: [
@@ -28,6 +28,7 @@ import { setgroups } from 'process';
     UserModule,
     PaymentModule,
     PointTransactionModule,
+    EventModule,
     ConfigModule.forRoot({
       isGlobal: true,
       envFilePath: '.env',
@@ -48,7 +49,6 @@ import { setgroups } from 'process';
       entities: [__dirname + '/apis/**/*.entity.*'],
       synchronize: true,
       logging: true,
-      timezone: 'Asia/seoul',
     }),
     CacheModule.register<RedisClientOptions>({
       store: redisStore,

ars/src/main.ts

@@ -1,15 +1,17 @@
 import { NestFactory } from '@nestjs/core';
 import { AppModule } from './app.module';
-import * as cors from 'cors';
 import { graphqlUploadExpress } from 'graphql-upload';
+import { SocketIoAdapter } from './adapters/socket-io.adapters';
+import { NestExpressApplication } from '@nestjs/platform-express';
 
 async function bootstrap() {
-  const app = await NestFactory.create(AppModule);
+  const app = await NestFactory.create<NestExpressApplication>(AppModule);
   app.enableCors({
     origin: 'http://localhost:3000',
     credentials: true,
   });
   app.use(graphqlUploadExpress());
+  app.useWebSocketAdapter(new SocketIoAdapter(app));
   await app.listen(3000);
 }
 bootstrap();