RPC load reduction

src/ORM/rpc-block/rpc-block.entity.ts

@@ -0,0 +1,14 @@
+import { Column, Entity, PrimaryColumn } from 'typeorm';
+
+@Entity()
+export class RpcBlockEntity {
+
+    @PrimaryColumn()
+    blockHeight: number;
+
+    @Column({ nullable: true })
+    lockedBy?: string;
+
+    @Column({ nullable: true })
+    data?: string;
+}

src/ORM/rpc-block/rpc-block.module.ts

@@ -0,0 +1,14 @@
+import { Global, Module } from '@nestjs/common';
+import { TypeOrmModule } from '@nestjs/typeorm';
+
+import { RpcBlockEntity } from './rpc-block.entity';
+import { RpcBlockService } from './rpc-block.service';
+
+
+@Global()
+@Module({
+    imports: [TypeOrmModule.forFeature([RpcBlockEntity])],
+    providers: [RpcBlockService],
+    exports: [TypeOrmModule, RpcBlockService],
+})
+export class RpcBlocksModule { }

src/ORM/rpc-block/rpc-block.service.ts

@@ -0,0 +1,28 @@
+import { Injectable } from '@nestjs/common';
+import { InjectRepository } from '@nestjs/typeorm';
+import { Repository } from 'typeorm';
+
+import { RpcBlockEntity } from './rpc-block.entity';
+
+@Injectable()
+export class RpcBlockService {
+    constructor(
+        @InjectRepository(RpcBlockEntity)
+        private rpcBlockRepository: Repository<RpcBlockEntity>
+    ) {
+
+    }
+    public getBlock(blockHeight: number) {
+        return this.rpcBlockRepository.findOne({
+            where: { blockHeight }
+        });
+    }
+
+    public lockBlock(blockHeight: number, process: string) {
+        return this.rpcBlockRepository.save({ blockHeight, data: null, lockedBy: process });
+    }
+
+    public saveBlock(blockHeight: number, data: string) {
+        return this.rpcBlockRepository.update(blockHeight, { data })
+    }
+}