I need help with a problem. In my context I need to put a Middleware between Shopify and another cloud software. I must recieve a json from Shopify but they needs a valid https URL. I have a Centos VPS running my app but when I generate a certificate, I receive an untrusted message and works in postman with an advice but obviously doesn’t works with Shopify. How could I proceed with this? Because my server only have an IP not a domain, so I can’t buy a certificate.
I tried to create an certificate, but I didn’t get a good result with that