Purpose: To find a way to securely store google/facebook client id and secret in backend web server. I read that, I should not store client id and secret in web server.
Recommendation needed: What software or practice I can use to store client id and secret key for my web applications.
Addtional information: I have built a MERN application that authenticate user by google login and facebook login. In my code, backend server communicate with google and facebook authentication.