"parsing translation error - { stack: [ {} ] }" in application logs on start

[nonamecat19]

Describe the bug

Hi, I saw some strange behavior of the library. Error 2024-03-11 14:08:43 [I18nService] parsing translation error - { stack: [ {} ] } +1ms After this error log application working properly. Maybe you have idea how to fix it or suppress the log?

app.module.ts

import { Module } from '@nestjs/common';
import { AcceptLanguageResolver, HeaderResolver } from 'nestjs-i18n';
import { I18nTranslationLoader } from '@core/loaders';

@Module({
  imports: [
    CoreI18nModule.forRoot({
      fallbackLanguage: 'en',
      loader: I18nTranslationLoader,
      loaderOptions: {},
      typesOutputPath: `${appConfig.i18n.types}/i18n.generated.ts`,
      resolvers: [
        new HeaderResolver(['x-lang']),
        AcceptLanguageResolver,
      ],
      translations: {
        en: {
          core: coreEnLocale,
        },
        ua: {
          core: coreUaLocale,
        },
      },
    }),
  ],
})
export class AppModule {}

i18n.module.ts

import { I18nStorage } from '@core/storages';
import { DynamicModule, Module, Provider } from '@nestjs/common';
import { assign, omit } from 'lodash';
import { I18nModule } from 'nestjs-i18n';
import { I18nOptions } from 'nestjs-i18n/dist/interfaces/i18n-options.interface';
import { I18nTranslation } from 'nestjs-i18n/dist/interfaces/i18n-translation.interface';

@Module({})
export class CoreI18nModule {
  private static i18nStorage = new I18nStorage();

  public static forRoot(options: I18nOptions & { translations?: I18nTranslation }): DynamicModule {
    const module = this.getModule(options.translations);
    const i18nStorageProvider = this.getI18nStorageProvider();

    return assign(module, {
      imports: [
        I18nModule.forRoot(omit(options, ['translations'])),
      ],
      providers: [
        i18nStorageProvider,
      ],
      exports: [
        i18nStorageProvider,
      ],
    } as DynamicModule);
  }

  public static forFeature(config?: I18nTranslation): DynamicModule {
    return this.getModule(config);
  }

  protected static getModule(config?: I18nTranslation): DynamicModule {
    if (config) {
      this.i18nStorage.add(config);
    }

    return {
      global: true,
      module: CoreI18nModule,
      imports: [],
      exports: [],
      providers: [],
    };
  }

  private static getI18nStorageProvider(): Provider {
    return {
      provide: I18nStorage,
      useFactory: () => this.i18nStorage,
    };
  }
}

i18n-translation.loader.ts

import { appConfig } from '@app/app.config';
import { ModuleHelper } from '@core/helpers';
import { I18nStorage } from '@core/storages';
import { I18nLoader, I18nTranslation } from 'nestjs-i18n';
import { Observable } from 'rxjs';

export class I18nTranslationLoader extends I18nLoader {
  public async load(): Promise<I18nTranslation | Observable<I18nTranslation>> {
    return (ModuleHelper.get(I18nStorage) as I18nStorage).get();
  }

  public async languages(): Promise<string[] | Observable<string[]>> {
    return appConfig.i18n.languages;
  }
}

Reproduction

Version nestjs-i18n: 10.2.6, same issue on 10.4.5. OS: MacOS, Linux

System Info

System:
    OS: macOS 14.4
    CPU: (8) arm64 Apple M1 Pro
    Memory: 48.27 MB / 16.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 18.17.1 - ~/.nvm/versions/node/v18.17.1/bin/node
    Yarn: 1.22.21 - ~/.nvm/versions/node/v18.17.1/bin/yarn
    npm: 10.2.4 - ~/.nvm/versions/node/v18.17.1/bin/npm
    pnpm: 8.15.3 - ~/.nvm/versions/node/v18.17.1/bin/pnpm
    bun: 1.0.25 - ~/.bun/bin/bun
    Watchman: 2024.01.22.00 - /opt/homebrew/bin/watchman
  Browsers:
    Chrome: 122.0.6261.112
    Edge: 122.0.2365.80
    Safari: 17.4

Used Package Manager

npm

Validations

• [X] Follow our Code of Conduct
• [X] Read the Contributing Guide.
• [X] Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• [X] Check that this is a concrete bug. For Q&A, please open a GitHub Discussion instead.
• [X] The provided reproduction is a minimal reproducible of the bug.