Plugin development, downloading updates via API link

Hey,
I have a plugin that receives updates from a file on my server and it works great.
I use – https://github.com/YahnisElsts/plugin-update-checker
My problem is when I try to change the file link to a masked link the update fails. The link behaves like a downloadable file but in practice it fails.
for example:
https://example.com/download/file.zip – works great
https://example.com/wp-json/my-end-point/v1/download – does not work
I added the headers:

header("Content-Type: application/octet-stream");
header('Content-Type: application/zip');
header("Content-Transfer-Encoding: Binary");
header("Content-disposition: attachment; filename=\"file.zip\"");
readfile('https://example.com/download/file.zip');

When you enter the link https://example.com/wp-json/my-end-point/v1/download, the file downloads properly through the browser.

The idea is that I can verify before downloading the file
How can I solve this?

• This topic was modified 3 years, 2 months ago by Yehi.