Map Laravel /api route to api subdomain in Nginx

api.example.conf

server {
    listen       80;
    server_name api.example.com;
    
    location / {
        root   /usr/share/nginx/LARAVEL_DIR/public;
        index  index.php;

        try_files $uri $uri/ /index.php$is_args$args;
        location ~ \.php$ {
            fastcgi_pass 127.0.0.1:9000;
            fastcgi_index index.php;
            fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
            include fastcgi_params;
            fastcgi_param REQUEST_URI /api$request_uri; #This line is important!
        }
    }
}