first commit

src/main.ts

@@ -0,0 +1,84 @@
+import { ValidationPipe } from '@nestjs/common';
+import { NestFactory } from '@nestjs/core';
+import { ConfigService } from '@nestjs/config';
+import { DocumentBuilder, SwaggerModule } from '@nestjs/swagger';
+import * as express from 'express';
+import { randomUUID } from 'crypto';
+import { NextFunction, Request, Response } from 'express';
+import { existsSync, mkdirSync } from 'fs';
+import { join } from 'path';
+import { AppModule } from './app.module';
+import { ResponseEnvelopeInterceptor } from './common/interceptors/response-envelope.interceptor';
+
+async function bootstrap(): Promise<void> {
+  const app = await NestFactory.create(AppModule);
+  const configService = app.get(ConfigService);
+  const corsOrigins = configService.get<string[]>('cors.origins', []);
+  const uploadsDir = join(process.cwd(), 'uploads');
+
+  if (!existsSync(uploadsDir)) {
+    mkdirSync(uploadsDir, { recursive: true });
+  }
+
+  app.enableCors({
+    origin: corsOrigins.length ? corsOrigins : true,
+    credentials: true,
+  });
+
+  app.setGlobalPrefix(configService.get<string>('globalPrefix', 'api/v1'));
+
+  app.useGlobalPipes(
+    new ValidationPipe({
+      whitelist: true,
+      forbidNonWhitelisted: true,
+      transform: true,
+      transformOptions: { enableImplicitConversion: true },
+    }),
+  );
+
+  app.use((req: Request, res: Response, next: NextFunction) => {
+    const startedAt = Date.now();
+    const requestId = (req.headers['x-request-id'] as string | undefined) ?? randomUUID();
+    req.headers['x-request-id'] = requestId;
+    res.setHeader('x-request-id', requestId);
+
+    res.on('finish', () => {
+      const log = {
+        level: 'info',
+        requestId,
+        method: req.method,
+        path: req.originalUrl,
+        statusCode: res.statusCode,
+        durationMs: Date.now() - startedAt,
+      };
+      console.log(JSON.stringify(log));
+    });
+
+    next();
+  });
+
+  const responseEnvelopeEnabled = configService.get<boolean>('responseEnvelopeEnabled', false);
+  if (responseEnvelopeEnabled) {
+    app.useGlobalInterceptors(new ResponseEnvelopeInterceptor());
+  }
+
+  app.use('/uploads', express.static(uploadsDir));
+
+  const swaggerConfig = new DocumentBuilder()
+    .setTitle(configService.get<string>('swagger.title', 'Oudelaa API'))
+    .setDescription(
+      configService.get<string>('swagger.description', 'Social media backend API documentation'),
+    )
+    .setVersion(configService.get<string>('swagger.version', '1.0.0'))
+    .addBearerAuth()
+    .build();
+
+  const document = SwaggerModule.createDocument(app, swaggerConfig);
+  SwaggerModule.setup(configService.get<string>('swagger.path', 'docs'), app, document);
+
+  const port = configService.get<number>('port', 4000);
+  const host = configService.get<string>('host', '0.0.0.0');
+  await app.listen(port, host);
+}
+
+void bootstrap();