CODEWITHSUNDEEP
node.jsmongodbtypescriptmongoosenestjs
quen2404
quen2404

Reputation: 245

NestJS - Mongoose with GridFS

I want to use mongoose with NestJs. I'm using the package @nestjs/mongoose as describe in the documentation. It works correctly when I use it with standard models. But I need to use GridFS to store files in my mongo database.

How could I use this feature? Is an integration available with @nestjs/mongoose to use third party libraries like mongoose-gridfs or another one? Or should is use directly mongoose without @nestjs/mongoose in my NestJs application?

Upvotes: 1

Views: 1884

Answers (2)

pantera
pantera

Reputation: 173

I used the @InjectConnection() decorator from the nestjs/mongoose package to achieve this functionality:

export class AttachmentsService {
  private readonly attachmentGridFsRepository: any; // This is used to access the binary data in the files
  private readonly attachmentRepository: Model<AttachmentDocument>; // This is used to access file metadata

  constructor(@InjectConnection() private readonly mongooseConnection: Mongoose,
              @Inject(Modules.Logger) private readonly logger: Logger) {
    this.attachmentGridFsRepository = gridfs({
      collection: 'attachments',
      model: Schemas.Attachment,
      mongooseConnection: this.mongooseConnection,
    });

    this.attachmentRepository = this.attachmentGridFsRepository.model;
  }

My connection is instantiated in the app.tsx using Mongoose.forRootAsync().

Upvotes: 1

quen2404
quen2404

Reputation: 245

For thoose who want to use mongoose with other package which needs connection, you shouldn't use the @nestjs/module. Here is an example to use standard mongoose library : https://github.com/nestjs/nest/tree/master/sample/14-mongoose-base

Upvotes: 1

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