GenServer Callbacks: handle_continue and handle_call

The handle_continue callback function

The handle_continue/2 callback is a recent addition to GenServer. Often GenServer processes do complex work as soon as they start. Rather than blocking the whole application from starting, we return {:ok, state, {:continue, term}} from the init/1 callback and use handle_continue/2.

Return values

Accepted return values for handle_continue/2 include the following:

• {:noreply, new_state}

• {:noreply, new_state, {:continue, term}}

• {:stop, reason, new_state}

{:noreply, new_state}

Since the handle_continue/2 callback receives the latest ...