export async function toFile()

in uploads.ts [119:158]

• 30 lines of code
• 8 McCabe index (conditional complexity)

export async function toFile(
  value: ToFileInput | PromiseLike<ToFileInput>,
  name?: string | null | undefined,
  options?: FilePropertyBag | undefined,
): Promise<FileLike> {
  // If it's a promise, resolve it.
  value = await value;

  // If we've been given a `File` we don't need to do anything
  if (isFileLike(value)) {
    return value;
  }

  if (isResponseLike(value)) {
    const blob = await value.blob();
    name ||= new URL(value.url).pathname.split(/[\\/]/).pop() ?? "unknown_file";

    // we need to convert the `Blob` into an array buffer because the `Blob` class
    // that `node-fetch` defines is incompatible with the web standard which results
    // in `new File` interpreting it as a string instead of binary data.
    const data = isBlobLike(blob)
      ? [(await blob.arrayBuffer()) as any]
      : [blob];

    return new File(data, name, options);
  }

  const bits = await getBytes(value);

  name ||= getName(value) ?? "unknown_file";

  if (!options?.type) {
    const type = (bits[0] as any)?.type;
    if (typeof type === "string") {
      options = { ...options, type };
    }
  }

  return new File(bits, name, options);
}