I tried the above but Cant seem to get it working : please see below

......
include /etc/nginx/conf.d/*.conf;
include /etc/nginx/sites-enabled/*;

server {
listen 9000;
server_name iossapp1.com;

if ($scheme = 'http') {
rewrite ^ https://$server_name:9443$request_uri? permanent;
}
}

ssl_certificate /etc/nginx/ssl/server.crt;
ssl_certificate_key /etc/nginx/ssl/server.key;

server {
listen 9443 ssl;
server_name iossapp1.com;

error_page 497 https://$host:9443$request_uri;

location / {
proxy_pass http://127.0.0.1:9001;
proxy_set_header Host $host;
# proxy_set_header X-Forwarded-Ssl on;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
}
}
}


Any help would be much appreciated