Nestjs-algolia NPM

nestjs-algolia

The algolia NestJS module based on the official algolia package

Support

If you use and like this library, feel free to support my Open Source projects.

How to install

npm install nestjs-algolia
npm install --save-dev @types/algoliasearch

yarn add nestjs-algolia
yarn add -D @types/algoliasearch

How to use

Register the module

import { AlgoliaModule } from 'nestjs-algolia';

@Module({
  imports: [
    AlgoliaModule.register({
      applicationId: 'YOUR_APPLICATION_ID',
      apiKey: 'YOUR_API_KEY',
    }),
  ],
})
export class AppModule {}

Inject the service

import { AlgoliaService } from 'nestjs-algolia';

@Injectable()
export class AppService {
  constructor(private readonly algoliaService: AlgoliaService) {}

  addRecordToIndex(
    indexName: string,
    record: any,
  ): Promise<algoliasearch.Task> {
    const index = this.algoliaService.initIndex(indexName);

    return index.addObject(record);
  }
}

Async options

Quite often you might want to asynchronously pass your module options instead of passing them beforehand. In such case, use registerAsync() method, that provides a couple of various ways to deal with async data.

Use factory

AlgoliaModule.registerAsync({
  useFactory: () => ({
    applicationId: 'YOUR_APPLICATION_ID',
    apiKey: 'YOUR_API_KEY',
  }),
});

Obviously, our factory behaves like every other one (might be async and is able to inject dependencies through inject).

AlgoliaModule.registerAsync({
  imports: [ConfigModule],
  useFactory: async (configService: ConfigService) => ({
    applicationId: configService.getString('ALGOLIA_APPLICATION_ID'),
    apiKey: configService.getString('ALGOLIA_API_KEY'),
  }),
  inject: [ConfigService],
}),

Use class

AlgoliaModule.registerAsync({
  useClass: AlgoliaConfigService,
});

Above construction will instantiate AlgoliaConfigService inside AlgoliaModule and will leverage it to create options object.

class AlgoliaConfigService implements AlgoliaOptionsFactory {
  createAlgoliaOptions(): AlgoliaModuleOptions {
    return {
      applicationId: 'YOUR_APPLICATION_ID',
      apiKey: 'YOUR_API_KEY',
    };
  }
}

Use existing

AlgoliaModule.registerAsync({
  imports: [ConfigModule],
  useExisting: ConfigService,
}),

It works the same as useClass with one critical difference - AlgoliaModule will lookup imported modules to reuse already created ConfigService, instead of instantiating it on its own.