nodejs, Express Cannot GET //v1 error

The problem will be with your nginx config, although the syntax will pass and the base route will work, for any other route within this, you have to set up your nginx as /v1/, you have to include the extra / after for example,

    proxy_pass http://localhost:3010;
    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;
}```

Should actually be written as:

```location /v1/ {
    proxy_pass http://localhost:3010;
    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;
}```

 A slight difference, but it will forward all request to other routes correctly, and wont give the //v1 error, hope this helps you or anyone viewing this.

how do you run your NodeJS Express APP? Do you use pm2 ?