Behaviour of an Uploader.

Example

defmodule MyApp.Uploader do
  @moduledoc false
  @behaviour Uploadex.Uploader

  alias MyAppWeb.Endpoint

  @impl true
  def get_files(%User{photo: photo}), do: photo
  def get_files(%Company{photo: photo}), do: photo

  @impl true
  def default_opts(Uploadex.FileStorage), do: [base_path: :code.priv_dir(:my_app), base_url: Endpoint.url()]
  def default_opts(Uploadex.S3Storage), do: [bucket: "my_bucket", region: "sa-east-1", upload_opts: [acl: :public_read]]

  @impl true
  def storage(%User{id: id} = user), do: {Uploadex.FileStorage, directory: "/uploads/users/#{id}"}
  def storage(%Company{} = company), do: {Uploadex.S3Storage, directory: "/thumbnails"}

  # Optional:
  @impl true
  def accepted_extensions(%User{}), do: ~w(.jpg .png)
  def accepted_extensions(_any), do: :any
end