pattern_match_response.ex

def update(conn, %{"id" => id, "uploaded_image" => uploaded_image}) do
  contents = uploaded_image.path 
  |> File.read!()

  response = S3.put_object(System.get_env("AWS_BUCKET"), uploaded_image.filename, contents) 
  |> ExAws.request!()
    
  case response do
    %{status_code: 200} ->
        # do something here after s3 uploads successfully
    _ ->
        # catch everything else as a wildcard and have them try again
      conn
      |> put_flash(:error, "Error uploading file")
      |> redirect(to: "/admin/resource/"<>id<>"/edit?type=image")
  end
end