Imagine we have a Yandex.Disk link https://disk.yandex.ru/d/0gRKgtGjqWil4g and this service serving at localhost:3000. You need to cut off https://disk.yandex.ru from URL and append it to localhost:3000. Final URL will be localhost:3000/d/0gRKgtGjqWil4g

It's better to host it on the server with disk subdomain, like disk.example.com, so you can just change domain from disk.yandex.ru to disk.example.com and this service will redirect to file downloading on execution.