server { listen 80 default_server; listen [::]:80 default_server; root /var/www/html; index index.html; server_name _; location / { try_files $uri $uri/ =404; } location /api/ { proxy_pass http://localhost:8080/; 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; } }