installed typeorm and added initial merchant resource

src/merchants/dto/create-merchant.dto.ts

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+export class CreateMerchantDto {}

src/merchants/dto/update-merchant.dto.ts

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+import { PartialType } from '@nestjs/mapped-types';
+import { CreateMerchantDto } from './create-merchant.dto';
+
+export class UpdateMerchantDto extends PartialType(CreateMerchantDto) {}

src/merchants/entities/merchant.entity.ts

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+export class Merchant {}

src/merchants/merchants.controller.spec.ts

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+import { Test, TestingModule } from '@nestjs/testing';
+import { MerchantsController } from './merchants.controller';
+import { MerchantsService } from './merchants.service';
+
+describe('MerchantsController', () => {
+  let controller: MerchantsController;
+
+  beforeEach(async () => {
+    const module: TestingModule = await Test.createTestingModule({
+      controllers: [MerchantsController],
+      providers: [MerchantsService]
+    }).compile();
+
+    controller = module.get<MerchantsController>(MerchantsController);
+  });
+
+  it('should be defined', () => {
+    expect(controller).toBeDefined();
+  });
+});

src/merchants/merchants.controller.ts

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+import { Controller, Get, Post, Body, Patch, Param, Delete } from '@nestjs/common';
+import { MerchantsService } from './merchants.service';
+import { CreateMerchantDto } from './dto/create-merchant.dto';
+import { UpdateMerchantDto } from './dto/update-merchant.dto';
+
+@Controller('merchants')
+export class MerchantsController {
+  constructor(private readonly merchantsService: MerchantsService) {}
+
+  @Post()
+  create(@Body() createMerchantDto: CreateMerchantDto) {
+    return this.merchantsService.create(createMerchantDto);
+  }
+
+  @Get()
+  findAll() {
+    return this.merchantsService.findAll();
+  }
+
+  @Get(':id')
+  findOne(@Param('id') id: string) {
+    return this.merchantsService.findOne(+id);
+  }
+
+  @Patch(':id')
+  update(@Param('id') id: string, @Body() updateMerchantDto: UpdateMerchantDto) {
+    return this.merchantsService.update(+id, updateMerchantDto);
+  }
+
+  @Delete(':id')
+  remove(@Param('id') id: string) {
+    return this.merchantsService.remove(+id);
+  }
+}

src/merchants/merchants.module.ts

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+import { Module } from '@nestjs/common';
+import { MerchantsService } from './merchants.service';
+import { MerchantsController } from './merchants.controller';
+
+@Module({
+  controllers: [MerchantsController],
+  providers: [MerchantsService]
+})
+export class MerchantsModule {}

src/merchants/merchants.service.spec.ts

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+import { Test, TestingModule } from '@nestjs/testing';
+import { MerchantsService } from './merchants.service';
+
+describe('MerchantsService', () => {
+  let service: MerchantsService;
+
+  beforeEach(async () => {
+    const module: TestingModule = await Test.createTestingModule({
+      providers: [MerchantsService]
+    }).compile();
+
+    service = module.get<MerchantsService>(MerchantsService);
+  });
+
+  it('should be defined', () => {
+    expect(service).toBeDefined();
+  });
+});

src/merchants/merchants.service.ts

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+import { Injectable } from '@nestjs/common';
+import { CreateMerchantDto } from './dto/create-merchant.dto';
+import { UpdateMerchantDto } from './dto/update-merchant.dto';
+
+@Injectable()
+export class MerchantsService {
+  create(createMerchantDto: CreateMerchantDto) {
+    return 'This action adds a new merchant';
+  }
+
+  findAll() {
+    return `This action returns all merchants`;
+  }
+
+  findOne(id: number) {
+    return `This action returns a #${id} merchant`;
+  }
+
+  update(id: number, updateMerchantDto: UpdateMerchantDto) {
+    return `This action updates a #${id} merchant`;
+  }
+
+  remove(id: number) {
+    return `This action removes a #${id} merchant`;
+  }
+}