init

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: !isProduction,
+  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,
+  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;
+    },
+  },
+});