Can't established connection with elasticsearch

[ridwankustanto]

Hi, first thanks for the example! It helps me learn.

But I found a problem while replicating your article on Medium. I can execute accountCreate but I couldn't execute productCreate, and when I checked, it has a message error like the below on the catalog container:

missing "=" after "http://catalog_db:9200" in connection info string

docker-compose successfully up and running.

Any idea what happens?