Usage with FormData

For working with FormData and File you can use the seria/form-data module which exposes the functions encode, encodeAsync and decode.

import { encode, decode } from "seria/form-data";

const attachments = new FormData();
attachments.set("docs", "<text>");

const photo = readFile("/images/photo.jpg");

const input = {
  username: "Nobara Kugisaki",
  email: "nobara.kugisaki@example.com",
  photo,
  attachments,
};

const formData = encode(input);
const value = decode(formData);

The encodeAsync function awaits all the promises and generators before returning the value.