How to configure nginx server to forward request to a node server with empty path?

Question

i have an Nginx server with the following configuration:

server
{
    listen 80;
    server_name example.ca www.example.ca;
    location / {

proxy_pass http://127.0.0.1:3000;
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;
}
}

and on the node server am listening to port 3000 using node express as follow;

app.get('*', function (req, res) {
  console.log(' request received ', req.headers.host);
});

and i have a domain www.example.com which is pointing to the Nginx server IP, the test am doing is:

http://www.example.com/test result ===> request received www.example.com

http://www.example.com/test/abc result ===> request received www.example.com

http://www.example.com result ===> ( i get no result !! its like the app.get did not triggered )

so can any one help me in this issue ? when i browse the domain without any path parameter am not getting any result, so its like the Nginx didn't forward this request to the node server !!

Answer 1

First of all when you browse abc.com using browser or curl it will always send the path as / . There is no way to send a blank path

Next your nginx config is of a socket.io implementation. It should be below

server
{
    listen 80;
    server_name example.ca www.example.ca;
    location / {
       proxy_pass http://127.0.0.1:3000;
       proxy_http_version 1.1;
       proxy_set_header Host $host;
    }
}

Next you are not ending your requests they will be just timing out. Change your code to below

app.get('*', function (req, res) {
  console.log(' request received ', req.headers.host);
  res.status(200).send("all ok");
});

Also when you have issues you can test it using curl like below

curl -v http://www.example.com