https:// domain .com redirecting to https:// www - apache

Question

My nginx config is mostly working with https, all redirects from http to https are working except from https://example.com which needs redirect to https://www.example.com Can someone tell me where I'm going wrong?
I've tried adding the redirect in the server block listening to 443 for example.com to redirect to www.example.com but I had the same issue.
server {
server_name www.example.com;
index index.php index.html index.htm;
root /var/www/qc/public;
error_log /var/www/qc/error.log debug;
access_log /var/www/qc/access.log;
location / {
include /etc/nginx/mime.types;
index index.php;
try_files $uri $uri/ /index.php?$query_string;
}
location ~ \.php$ {
include snippets/fastcgi-php.conf;
fastcgi_pass unix:/run/php/php7.0-fpm.sock;
}
listen 443 ssl; # managed by Certbot
location /phpmyadmin {
root /usr/share/;
index index.php index.html index.htm;
location ~ ^/phpmyadmin/(.+\.php)$ {
try_files $uri =404;
fastcgi_pass unix:/var/run/php/php7.0-fpm.sock;
include fastcgi_params;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
}
location ~* ^/phpmyadmin/(.+\.(jpg|jpeg|gif|css|png|js|ico|html|xml|txt$
root /usr/share/;
}
}
ssl_certificate /etc/letsencrypt/live/example.com/fullchain.pem; # m$
ssl_certificate_key /etc/letsencrypt/live/example.com/privkey.pem; #$
}
server {
if ($host = example.com) {
return 301 https://$host$request_uri;
} # managed by Certbot
server_name example.com;
return 404; # managed by Certbot
listen 443 ssl; # managed by Certbot
ssl_certificate /etc/letsencrypt/live/example.com/fullchain.pem; # m$
ssl_certificate_key /etc/letsencrypt/live/example.com/privkey.pem; #$
include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot
}
server {
server_name www.example.com example.com;
return 301 https://www.example.com$request_uri;
listen 80;
return 404; # managed by Certbot
}
I'd like the url https://example.com to redirect to https://www.example.com

Answer 1

In your example.com bracket, you don't need the "if ($host = example.com) {"
as you already delimit the hosts that enter this bracket by setting "server_name example.com;" . Also when you redirect to https://$host$request_uri; , you are redirecting to example.com, not to www.example.com, creating an infinite loop of redirections.
Hops this helps, this is the example.com config that should work:
server {
location / {
return 301 https://www.example.com$request_uri;
}
server_name example.com;
return 404; # managed by Certbot
listen 443 ssl; # managed by Certbot
ssl_certificate /etc/letsencrypt/live/example.com/fullchain.pem; # m$
ssl_certificate_key /etc/letsencrypt/live/example.com/privkey.pem; #$
include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot
}