maestro/src/main.ts

if (process.env.ENV !== 'local') require('elastic-apm-node/start');
import { NestFactory } from '@nestjs/core';
import { DocumentBuilder, SwaggerModule } from '@nestjs/swagger';
import helmet from 'helmet';
import { DadosferaLogger } from '@dadosfera/dadosfera-logs';

import { AppModule } from './app.module';
import { writeFileSync } from 'fs';
import { execSync } from 'child_process';
import { INestApplication } from '@nestjs/common';
async function bootstrap() {
  DadosferaLogger.setupLogger({
    serviceName: 'maestro',
    serviceEnvironment: process.env.ENV,
  });
  const logger = new DadosferaLogger();

  const app = await NestFactory.create(AppModule, {
    logger,
    cors: {
      origin: '*',
      methods: 'GET,HEAD,PUT,PATCH,POST,DELETE',
      preflightContinue: false,
      optionsSuccessStatus: 204,
    },
  });
  app.use(helmet());
  configureSwagger(app);
  await app.listen(3333);
  if (process.env.KILL_AFTER_START) await app.close();
}

function configureSwagger(app: INestApplication) {
  let branchName = '';
  try {
    branchName = execSync('git rev-parse --abbrev-ref HEAD')
      .toString()
      .replace('\n', '')
      .trim();
  } catch (error) {
    console.warn("Can't get branch name", error);
  }
  const swaggerTitle = branchName ? `Maestro - ${branchName}` : 'Maestro';

  const config = new DocumentBuilder()
    .setTitle(swaggerTitle)
    .setDescription('Documentation for Maestro gateway')
    .addSecurity('access-token', {
      type: 'apiKey',
      name: 'Authorization',
      in: 'header',
    })
    .setDescription('This is the Maestro API')
    .addServer('https://maestro.stg.dadosfera.ai', 'Ambiente STG')
    .addServer('https://maestro-2.stg.dadosfera.ai', 'Ambiente STG2')
    .addServer('https://maestro.dadosfera.ai', 'Ambiente PRD')
    .build();

  const document = SwaggerModule.createDocument(app, config);

  const swaggerJsonFile =
    process.env.INTERNAL_SWAGGER === 'true'
      ? 'docsfera.json'
      : 'docsfera.external.json';

  if (process.env.ENV === 'local') SwaggerModule.setup('api', app, document);

  writeFileSync(
    swaggerJsonFile,
    JSON.stringify(
      {
        service: '${DOCS_API_TOKEN}',
        pageId: '${DOCS_PAGE_ID}',
        blockId: '${DOCS_BLOCK_ID}',
        schema: document,
      },
      null,
      2,
    ),
  );
}
bootstrap();