server {
    listen 80;
    server_name localhost;

    # 增加客户端请求体大小限制
    client_max_body_size 20M;

    location / {
        root /usr/share/nginx/html;
        try_files $uri /index.html;
    }

    location /api/ {
        proxy_pass http://api:5050/api/;
        proxy_set_header Host $host;
        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_set_header Connection '';
        proxy_http_version 1.1;

        # SSE/流式响应支持
        proxy_buffering off;
        proxy_cache off;
        chunked_transfer_encoding on;

        # 增加超时时间（上传和流式响应）
        proxy_read_timeout 600;
        proxy_connect_timeout 600;
        proxy_send_timeout 600;
    }
}