oa_based/src/setup-swagger.ts

import { INestApplication, Logger } from '@nestjs/common';
import { ConfigService } from '@nestjs/config';
import { DocumentBuilder, SwaggerModule } from '@nestjs/swagger';

import { API_SECURITY_AUTH } from './common/decorators/swagger.decorator';
import { CommonEntity } from './common/entity/common.entity';
import { ResOp, TreeResult } from './common/model/response.model';
import { ConfigKeyPaths, IAppConfig, ISwaggerConfig } from './config';
import { Pagination } from './helper/paginate/pagination';

export function setupSwagger(
  app: INestApplication,
  configService: ConfigService<ConfigKeyPaths>
): void {
  const { name, port } = configService.get<IAppConfig>('app')!;
  const { enable, path } = configService.get<ISwaggerConfig>('swagger')!;

  if (!enable) return;

  const documentBuilder = new DocumentBuilder()
    .setTitle(name)
    .setDescription(`${name} API document`)
    .setVersion('1.0');

  // auth security
  documentBuilder.addSecurity(API_SECURITY_AUTH, {
    description: 'Auth',
    type: 'apiKey',
    in: 'header',
    name: 'Authorization',
  });

  const document = SwaggerModule.createDocument(app, documentBuilder.build(), {
    ignoreGlobalPrefix: false,
    extraModels: [CommonEntity, ResOp, Pagination, TreeResult],
  });

  SwaggerModule.setup(path, app, document);

  // started log
  const logger = new Logger('SwaggerModule');
  logger.log(`Document running on http://127.0.0.1:${port}/${path}`);
}