Nginx returns 404 not found when access file on server

I have a server(Ubuntu 16.04) and a user called coxier.

I configure Nginx to Proxy Requests. I create a file etc/nginx/sites-available/myproject.

server {
    listen 80;
    server_name 101.200.36.xx;

    location / {
        include uwsgi_params;
        uwsgi_pass unix:/home/coxier/iemoji/server/iemoji.sock;
    }
}

In this flask project, server receive request and then generate a .gif file for this request.

At first I directly I use flask#send_file to send gif file about 1MB, however speed is very slow.

So I decide to optimize the request.

• Receive http request and generate gif file.
• Return url of the generated gif file to user.
• User access gif file by url.

I have a question. How can I generate url of the generated gif?

I have tried like below.

server {
    listen 80;
    server_name 101.200.36.xx;

    root /home/coxier/iemoji/server/output;

    location / {
        include uwsgi_params;
        uwsgi_pass unix:/home/coxier/iemoji/server/iemoji.sock;
    }
}

For example, I want to access /home/coxier/iemoji/server/output/a3dfa3eb21daffc7085f71630cbd169e/output.gif.

Then I return http://101.200.36.xx/a3dfa3eb21daffc7085f71630cbd169e/output.gif to user.

However nginx returns 404 Not Found.

Answer

From https://docs.nginx.com/nginx/admin-guide/web-server/serving-static-content/ , I find solution.

server {
    listen 80;
    server_name 101.200.36.xx;


    location / {
        include uwsgi_params;
        uwsgi_pass unix:/home/coxier/iemoji/server/iemoji.sock;
    }

    location ~ .(gif) {
        root /home/coxier/iemoji/server/output;
        sendfile           on;
        sendfile_max_chunk 1m;
    }
}

You should redefine root in location block.

Then you can generate url like this:

http://101.200.36.xx/a3dfa3eb21daffc7085f71630cbd169e/output.gif.