The Broker Account Balance That Isn't There Yet
A position-sizing calculation blew up. Not a wrong number — no number at all. The account had money in it, the broker knew the balance,
state-management
2 posts
GenServer State Management in Elixir: A Production Order Book
One GenServer holds open positions, pending orders, strategy state, portfolio risk, and contract rolls — for a system trading real capital. This post is a tour