Impossibility to extend meta according to TypeScript

[chiefGui]

Hey there!

I have a dead simple snippet that actually works:

private addFilesToQueue(files: File[]): void {
  each(
    (file: File) =>
      uppy.addFile({
        name: file.name,
        type: file.type,
        data: file,
        meta: {
          path: file.path
        }
      }),
    files
  );
}

Turns out that TypeScript complains when adding path to meta and I'd love to understand exactly why or whether this is expected or not.

Here goes the message:

Transcription:

(parameter) file: File
Type '{ path: any; }' is not assignable to type '{ name: string; type?: string | undefined; }'.
Object literal may only specify known properties, and 'path' does not exist in type '{ name: string; type?: string | undefined; }'.ts(2322)
index.d.ts(11, 3): The expected type comes from property 'meta' which is declared here on type 'AddFileOptions'

Must anticipate I do understand the technical issue, but can't understand why I can't extend the meta.

Thanks!

[goto-bus-stop]

Hmm, so I think when the typings were introduced the idea was to have strongly typed metadata. addFile() doesn't have the TMeta generic parameter that some of the other methods have, so it doesn't pass that through.

If I just add it like on the other methods, it still doesn't work though … will keep looking, at worst we'll have to just loosen the metadata type to be { name: string, type?: string, [anythingElse: string]: any }