Method openDownloadStreamByName

src/gridfs/index.ts:203–224

* Returns a readable stream (GridFSBucketReadStream) for streaming the * file with the given name from GridFS. If there are multiple files with * the same name, this will stream the most recent file with the given name * (as determined by the `uploadDate` field). You can set the `revision`

(
    filename: string,
    options?: GridFSBucketReadStreamOptionsWithRevision
  )

   * option to change this behavior.
   */
  openDownloadStreamByName(
    filename: string,
    options?: GridFSBucketReadStreamOptionsWithRevision
  ): GridFSBucketReadStream {
    let sort: Sort = { uploadDate: -1 };
    let skip = undefined;
    if (options && options.revision != null) {
      if (options.revision >= 0) {
        sort = { uploadDate: 1 };
        skip = options.revision;
      } else {
        skip = -options.revision - 1;
      }
    }
    return new GridFSBucketReadStream(
      this.s._chunksCollection,
      this.s._filesCollection,
      this.s.options.readPreference,
      { filename },
      { timeoutMS: this.s.options.timeoutMS, ...options, sort, skip }
    );
  }

  /**
   * Renames the file with the given _id to the given string