dmail-api/src/configs/mikro-orm.config.ts

import { MikroOrmModuleAsyncOptions } from "@mikro-orm/nestjs";
import { PostgreSqlDriver } from "@mikro-orm/postgresql";
import { Logger } from "@nestjs/common";
import { ConfigService } from "@nestjs/config";

import { MIKRO_ORM_QUERY_LOGGER, MikroOrmQueryLogger } from "../common/providers/mikro-orm-logger";

export const databaseConfig: MikroOrmModuleAsyncOptions = {
  inject: [ConfigService, MIKRO_ORM_QUERY_LOGGER],
  providers: [MikroOrmQueryLogger],
  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 encodedPassword = encodeURIComponent(DB_PASS);

    return {
      driver: PostgreSqlDriver,
      autoLoadEntities: true,
      dbName: configService.getOrThrow<string>("DB_NAME"),
      debug: configService.get<string>("NODE_ENV") !== "production",
      clientUrl: `postgres://${DB_USER}:${encodedPassword}@${DB_HOST}:${DB_PORT}`,
      ensureDatabase: { forceCheck: true, create: true, schema: "update" },
      forceUtcTimezone: true,
      pool: {
        min: 2,
        max: 15,
        idleTimeoutMillis: 10000,
        acquireTimeoutMillis: 10000,
        reapIntervalMillis: 1000,
        createTimeoutMillis: 3000,
        destroyTimeoutMillis: 5000,
      },
      logger: (message) => logger.debug(message),
      schemaGenerator: {
        createForeignKey: true,
        disableForeignKeys: false,
        createIndex: true,
      },
      migrations: {
        path: "./database/migrations",
        pathTs: "./database/migrations",
        tableName: "migrations",
        transactional: true,
        allOrNothing: true,
        dropTables: false,
        safe: true,
        emit: "ts",
      },
    };
  },
};