How do I connect to a container hosted in Docker Toolbox?

Question

I am attempting to run my ASP.NET Core 1.1 web API in a Docker container, but I cannot connect to the web API from a browser or curl. To troubleshoot, I have a

Answer 1

I have found the answer in another question here.

Because Docker Toolbox is running on a lightweight Linux VM, it has its own IP address. One needs either to map localhost to the VM using DOCKER_HOST ir access the VM via it's IP address, found using the command:

docker-machine ip default