init

src/config/cache.config.ts

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+import { Keyv } from 'keyv';
+import KeyvRedis from '@keyv/redis';
+import type { CacheModuleAsyncOptions } from '@nestjs/cache-manager';
+import { ConfigService } from '@nestjs/config';
+import { CacheableMemory } from 'cacheable';
+
+export function cacheConfig(): CacheModuleAsyncOptions {
+  return {
+    isGlobal: true,
+    inject: [ConfigService],
+    useFactory: async (configService: ConfigService) => {
+      const redisUri = configService.get('REDIS_URI');
+      const namespace = configService.get('CACHE_NAMESPACE', 'app-cache');
+      const ttl = +configService.get<number>('CACHE_TTL', 3600); //1 hour
+
+      return {
+        stores: [
+          new Keyv({
+            store: new CacheableMemory({ ttl: ttl * 1000, lruSize: 5000 }),
+            namespace: namespace
+          }),
+          new KeyvRedis(redisUri, { namespace: namespace }),
+        ],
+      };
+    },
+  };
+}

src/config/http.config.ts

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+import type { HttpModuleAsyncOptions } from '@nestjs/axios';
+import { ConfigService } from '@nestjs/config';
+
+export function httpConfig(): HttpModuleAsyncOptions {
+  return {
+    inject: [ConfigService],
+    global: true,
+    useFactory: (configService: ConfigService) => {
+      return {
+        timeout: configService.getOrThrow<number>('AXIOS_TIMEOUT'),
+        headers: { 'Content-Type': 'application/json' },
+        global: true,
+      };
+    },
+  };
+}

src/config/mikro-orm.config.dev.ts

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+import { defineConfig, PostgreSqlDriver } from '@mikro-orm/postgresql';
+import * as dotenv from 'dotenv';
+
+// 1. Load environment variables from your .env file
+dotenv.config();
+
+// 2. Read variables directly from process.env
+const DB_PASS = process.env.DB_PASS;
+const DB_USER = process.env.DB_USER;
+const DB_HOST = process.env.DB_HOST;
+const DB_PORT = process.env.DB_PORT ? +process.env.DB_PORT : 5432;
+const DB_NAME = process.env.DB_NAME;
+const isProduction = process.env.NODE_ENV === 'production';
+
+// 3. Add checks to ensure variables are loaded
+if (!DB_PASS || !DB_USER || !DB_HOST || !DB_PORT || !DB_NAME) {
+  throw new Error('One or more database environment variables are not set.');
+}
+
+const encodedPassword = encodeURIComponent(DB_PASS);
+
+// 4. Export the result of defineConfig as the default
+export default defineConfig({
+  entities: ['dist/**/*.entity.js'],
+  entitiesTs: ['src/**/*.entity.ts'],
+  driver: PostgreSqlDriver,
+  dbName: DB_NAME,
+  debug: false,
+  clientUrl: `postgres://${DB_USER}:${encodedPassword}@${DB_HOST}:${DB_PORT}`,
+  ensureDatabase: isProduction
+    ? false
+    : {
+        forceCheck: true,
+        create: true,
+        schema: 'update',
+      },
+  forceUtcTimezone: true,
+  pool: {
+    min: isProduction ? 5 : 2,
+    max: isProduction ? 20 : 10,
+    idleTimeoutMillis: 30000,
+    acquireTimeoutMillis: 30000,
+    reapIntervalMillis: 1000,
+    createTimeoutMillis: 15000,
+    destroyTimeoutMillis: 5000,
+  },
+  // 5. Use console for CLI logging, not the injected Nest logger
+  // eslint-disable-next-line @typescript-eslint/no-unsafe-assignment
+  logger: isProduction ? console.log.bind(console) : console.debug.bind(console),
+  schemaGenerator: {
+    disableForeignKeys: false,
+  },
+  migrations: {
+    path: './database/migrations',
+    pathTs: './database/migrations',
+    tableName: 'migrations',
+    transactional: true,
+    allOrNothing: true,
+    dropTables: false,
+    safe: true,
+    emit: 'ts',
+  },
+  connect: true,
+  allowGlobalContext: true,
+  seeder: {
+    path: './dist/seeders',
+    pathTs: './src/seeders',
+    defaultSeeder: 'DatabaseSeeder',
+  },
+  driverOptions: {
+    connection: {
+      keepAlive: true,
+      keepAliveInitialDelayMillis: 10000,
+      statement_timeout: 60000,
+      query_timeout: 60000,
+      idle_in_transaction_session_timeout: 60000,
+      connectionTimeoutMillis: 10000,
+      application_name: DB_NAME,
+    },
+    connectionRetries: 5,
+    connectionRetryDelay: 3000,
+    validateConnection: (connection: any) => {
+      try {
+        return !!(connection && !connection.closed);
+      } catch (e: unknown) {
+        // Use console.error directly
+        console.error(`Connection validation failed: ${(e as Error).message}`);
+        return false;
+      }
+    },
+    poolErrorHandler: (err: Error) => {
+      // Use console.error directly
+      console.error(`PostgreSQL pool error: ${err.message}`);
+      if (err.message.includes('ECONNRESET') || err.message.includes('Connection terminated unexpectedly')) {
+        console.warn('Connection reset detected, will attempt to reconnect');
+        return true;
+      }
+      return false;
+    },
+  },
+});

src/config/mikro-orm.config.ts

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+import type { MikroOrmModuleAsyncOptions } from '@mikro-orm/nestjs';
+import { ConfigService } from '@nestjs/config';
+import { PostgreSqlDriver } from '@mikro-orm/postgresql';
+// import { defineConfig } from '@mikro-orm/postgresql';
+
+import type { Logger } from '@nestjs/common';
+import { MIKRO_ORM_QUERY_LOGGER } from '../common/constants';
+import { mikroOrmQueryLoggerProvider } from '../common/providers/mikro-orm-logger.provider';
+
+const dataBaseConfig: MikroOrmModuleAsyncOptions = {
+  //   entities: ['dist/**/*.entity.js'],
+  //   entitiesTs: ['src/**/*.entity.ts'],
+  //   dbName: 'your_db_name',
+  //   type: 'postgresql',
+  //   user: 'your_user',
+  //   password: 'your_password',
+  //   host: 'localhost',
+  //   port: 5432,
+  //   debug: true,
+
+  inject: [ConfigService, MIKRO_ORM_QUERY_LOGGER],
+  providers: [mikroOrmQueryLoggerProvider],
+  useFactory: (configService: ConfigService, logger: Logger) => {
+    const DB_PASS = configService.getOrThrow<string>('DB_PASS');
+    const DB_USER = configService.getOrThrow<string>('DB_USER');
+    const DB_HOST = configService.getOrThrow<string>('DB_HOST');
+    const DB_PORT = configService.getOrThrow<number>('DB_PORT');
+    const DB_NAME = configService.getOrThrow<string>('DB_NAME');
+    const encodedPassword = encodeURIComponent(DB_PASS);
+    const isProduction = configService.getOrThrow<string>('NODE_ENV') === 'production';
+
+    return {
+      // entities: ['dist/**/*.entity.js'],
+      entitiesTs: ['src/**/*.entity.ts'],
+      driver: PostgreSqlDriver,
+      autoLoadEntities: true,
+      dbName: DB_NAME,
+      debug: false,
+      clientUrl: `postgres://${DB_USER}:${encodedPassword}@${DB_HOST}:${DB_PORT}`,
+      ensureDatabase: isProduction
+        ? false
+        : {
+            forceCheck: true,
+            create: true,
+            schema: 'update',
+          },
+      forceUtcTimezone: true,
+      pool: {
+        min: isProduction ? 5 : 2,
+        max: isProduction ? 20 : 10,
+        idleTimeoutMillis: 30000,
+        acquireTimeoutMillis: 30000,
+        reapIntervalMillis: 1000,
+        createTimeoutMillis: 15000,
+        destroyTimeoutMillis: 5000,
+      },
+      logger: isProduction ? message => logger.log(message) : message => logger.debug(message),
+      schemaGenerator: {
+        // createForeignKey: !isProduction,
+        disableForeignKeys: false,
+        // createIndex: true,
+      },
+      migrations: {
+        path: './database/migrations',
+        pathTs: './database/migrations',
+        tableName: 'migrations',
+        transactional: true,
+        allOrNothing: true,
+        dropTables: false,
+        safe: true,
+        emit: 'ts',
+      },
+      connect: true,
+      allowGlobalContext: true,
+      driverOptions: {
+        connection: {
+          keepAlive: true,
+          keepAliveInitialDelayMillis: 10000,
+          statement_timeout: 60000,
+          query_timeout: 60000,
+          idle_in_transaction_session_timeout: 60000,
+          connectionTimeoutMillis: 10000,
+          application_name: configService.getOrThrow<string>('DB_NAME'),
+        },
+        connectionRetries: 5,
+        connectionRetryDelay: 3000,
+        validateConnection: (connection: any) => {
+          try {
+            // eslint-disable-next-line @typescript-eslint/no-unsafe-member-access
+            return !!(connection && !connection.closed);
+          } catch (e: unknown) {
+            logger.error(`Connection validation failed: ${(e as Error).message}`);
+            return false;
+          }
+        },
+        poolErrorHandler: (err: Error) => {
+          logger.error(`PostgreSQL pool error: ${err.message}`);
+          if (err.message.includes('ECONNRESET') || err.message.includes('Connection terminated unexpectedly')) {
+            logger.warn('Connection reset detected, will attempt to reconnect');
+            return true;
+          }
+          return false;
+        },
+      },
+    };
+  },
+};
+
+export default dataBaseConfig;

src/config/swagger.config.ts

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+import type { INestApplication } from '@nestjs/common';
+import { DocumentBuilder, SwaggerModule } from '@nestjs/swagger';
+
+export function getSwaggerConfig(app: INestApplication) {
+  const config = new DocumentBuilder()
+    .setTitle('D-menu API')
+    .setDescription('API documentation for D-menu backend')
+    .setVersion('1.0')
+    .addBearerAuth() // optional: for JWT endpoints
+    .build();
+
+  const document = SwaggerModule.createDocument(app, config);
+
+  SwaggerModule.setup('docs', app, document, {
+    swaggerOptions: {
+      persistAuthorization: true,
+      displayRequestDuration: true,
+      filter: true,
+      showExtensions: true,
+      docExpansion: 'none',
+
+      // HIDE MODELS / SCHEMAS
+      defaultModelsExpandDepth: -1,
+      defaultModelExpandDepth: -1,
+    },
+  });
+}