I'm trying to implement OAuth 1.0a in Magento 2.2. As per Magento docs, I created an integration, providing a Ngrok URL that points to localhost:8080 of my computer as the callback URL. However, when I'm activating the integration, my callback URL endpoint receives no data, but I'm also not getting any errors when activating the integration.
I want to get the OAuth data that Magento claims to send to the callback URL to continue OAuth authentication, but I'm now stuck at this point as Magento doesn't send it.
How can I overcome this issue? Any helpful suggestions are highly appreciated.