Streaming file from S3 NestJS

controller.ts

@Get(':hash')
  @Header('Content-Type', 'image/png')
  async getActiveImageByHash(
    @Param('hash') hash: string,
    @Res() response: Response,
  ): Promise<any> {
    const res = await this.usersService.getActiveImageByHash(hash);
    // Connect to s3
    const client = new S3Client({
      region: REGION,
      credentials: {
        accessKeyId: AWS_ACCESS_KEY,
        secretAccessKey: AWS_SECRET_KEY,
      },
    });
    const command = new GetObjectCommand({
      Bucket: BUCKET,
      Key: res[0].active_image,
    });
    // Get Object from S3
    const obj = await client.send(command);
    // Read object body which is often a stream of bytes
    const { Body } = obj;

    // @ts-ignore
    Body.pipe(response); // Connecting the read stream to write stream so that S3 read can be streamed to API response
  }