Make it so nginx always has site using https - nginx

Question

NOTE: example.com is just that. Per the rules of stackoverflow, I'm not using an actual domain.
I've been trying to get it so my nginx server for a single site always uses https.
I have the certificate installed and if I view the site with:
https://www.example.com it works fine.
But by default it goes to http and shows the site as insecure.
Here is the config:
server {
listen 80 default_server;
listen [::]:80 default_server ipv6only=on;
root /var/www/nodeapp;
index index.html index.htm;
server_name www.example.com example.com;
location / {
proxy_pass https://[IP address here]:3000;
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection 'upgrade';
proxy_set_header Host $host;
proxy_cache_bypass $http_upgrade;
}
}
I esentially want everything to point to https://www.example.com

Answer 1

Because your site has both of http and https. (80 port and 443 port).
To activate the only https you have to remove the config for http.
Please remove listen 80 and use listen 443 instead.
If you want to redirect all traffics to https,
you could add redirection config as following.
server{
if ($host = your_domain) {
return 301 https://$host$request_uri;
}
server_name your_domain;
listen 80;
return 404;
}
I've assumed that your config has ssl part in your main config.
For example,
listen 443 ssl;
ssl_certificate /etc/***/fullchain.pem;
ssl_certificate_key /etc/**/privkey.pem; # managed by Certbot
ssl_dhparam /etc/**/ssl-dhparams.pem; # managed by Certbot