Elixir pattern matching

defmodule Main do

    def main() do
        http_map = %{"type" => "http", "http" => "http config"}
        tcp_map = %{"type" => "tcp", "tcp" => "tcp config"}
        handle(http_map)
        handle(tcp_map)
    end
    
    def handle(map=%{"type" => "http"}) do
        IO.puts "http handler: " <> map["http"]
    end
    
    def handle(map=%{"type" => "tcp"}) do
        IO.puts "tcp handler: " <> map["tcp"]
    end

end

Main.main