README.md

Exercise: OTP-Servers-2

Extend your stack server with a push interface that adds a single value to the top of the stack. This will be implemented as a cast.

Experiment in iex with pushing and popping values.

Solution

See the stack directory for the full project.

iex> {:ok, pid} = GenServer.start_link(Stack.Server, [])
{:ok, #PID<0.112.0>}
iex> GenServer.cast(pid, {:push, 1})
:ok
iex> GenServer.cast(pid, {:push, 2})
:ok
iex> GenServer.call(pid, :pop)
2
iex> GenServer.call(pid, :pop)
1