nginx 为 express js 静态文件夹提供文件 server-index

Question

我是 nginx 的新手，我无法访问我的公共文件，请指导我，我是新手。

这是我在 express js 上的代码

app.use('/p',auth, express.static('public/uploads'),
serveIndex('public/uploads', {'icons': true}))

这是nginx上的代码

location =/file/{
proxy_pass http://localhost:8081/p/;
}

当我转到 http://mywebsite.com/file/ 时，它在我的页面上确实像这样工作，但是当我们单击此处显示该目录的文件时。它会出错或保持白屏

here is the full code of the location 
    #this is the file system
location =/file/{
proxy_pass http://localhost:8081/p/;
}
    #this is the express api
location /v1
{
        rewrite ^/v1/(.*)?$ /$1 break;
        proxy_http_version 1.1;
        proxy_cache_bypass $http_upgrade;

        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection 'upgrade';
        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_pass http://localhost:8081;
}
    #this is the front end
location /
{
                proxy_http_version 1.1;
                proxy_cache_bypass $http_upgrade;

                proxy_set_header Upgrade $http_upgrade;
                proxy_set_header Connection 'upgrade';
                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_pass http://localhost:5000;
}