Linked docker-compose containers making http requests

Question

I\'ve been looking on the web for a while and haven\'t found a solution to my problem which is similar to this StackOverflow question Docker HTTP-requests between containers. Bu

Answer 1

Since you make an Ajax call it will be sent by the browser which is client side and not server side. So when you make a call from <IP>:3000 to app:3030 for API, your browser has no idea what app is. So you have few things you can do

Using host file

/etc/hosts

<IP> app 

Then when you browse app using app:3000, app:3030 will automatically point to the correct address.

Using javascript to determine API url

You can use javascript to get the url that you should be using for api

document.location.scheme + "://" + document.location.hostname + ":3030"

Using nginx

You can create nginx reverse proxy

location / {
   proxy_pass http://localhost:3000;

   location /api {
      proxy_pass http://localhost:3030;
   }
}

This will require some change in your code file so that you use /api