data persistance init

src/ORM/client/client.entity.ts

@@ -0,0 +1,29 @@
+import { Column, Entity, OneToMany, PrimaryColumn } from 'typeorm';
+
+import { ClientStatisticsEntity } from '../client-statistics/client-statistics.entity';
+import { TrackedEntity } from '../utils/TrackedEntity.entity';
+
+@Entity()
+export class ClientEntity extends TrackedEntity {
+    @PrimaryColumn({ length: 8, type: 'varchar' })
+    id: string;
+
+    @Column({ type: 'datetime' })
+    startTime: Date;
+
+    @Column()
+    clientName: string;
+
+    @Column({ length: 62, type: 'varchar' })
+    address: string;
+
+    @Column({ default: 0 })
+    bestDifficulty: number
+
+    @OneToMany(
+        () => ClientStatisticsEntity,
+        clientStatistic => clientStatistic.client
+    )
+    clientStatistics?: ClientStatisticsEntity[];
+
+}