server {
    listen 1997;
    server_name localhost;

    location / {
        proxy_pass https://api.caiyunapi.com;

        proxy_set_header Host api.caiyunapi.com;
        proxy_ssl_name api.caiyunapi.com;
        proxy_ssl_server_name on;

        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;

        proxy_http_version 1.1;
        proxy_set_header Connection "";
    }
}