How to debug in Elixir

If you want to debug an elixir code execution you can use the dbg/2 macro. I was already using that nice macro to show the results on each step of a pipe execution on the logs, but I learned that if we use iex to start phoenix server then the dbg/2 calls will act like adding a breakpoints so we can pry on it. We need to start the server with:

iex -S mix phx.server

As a side note this debugging worked on the elixir 1.14.3 version but I saw that on the latest versions there's a new option to be passed to iex --dbg pry in order to swap the dbg implementation from the fancy IO output to the IEx.pry one.