Redirect / Rewrite

Ref: Creating NGINX Rewrite Rules

Redirect HTTP to HTTPS

server {
    listen 80;
    server_name example.com;

    return 301 https://www.example.com$request_uri;
    # or
    return 301 https://$host$request_uri;
}

Redirect all to correct domain name

server {
    listen 80 default_server;
    listen 443 ssl default_server;
    # Use the underscore or empty name to avoid matching a real domain name 
    server_name "";
    return 301 $scheme://www.example.com;
}