在Elixir中设置gen_tcp的参数

Question

I'm trying to accept data through a TCP connection in Elixir using Erlang gen_tcp

{:ok, socket} = :gen_tcp.connect("127.0.0.1" ,2000,[:binary, {:packet, 0}])
receive_data(Socket, [])

But this isn't working due to bad arguments of connect . How to set binary and packet values in Elixir?

Here It is explained about parameter meanings. But I need support to set parameters in Elixir.

Answer 1

Looking at gen_tcp's documentation, you can't set a packet option on a connection. http://erlang.org/doc/man/gen_tcp.html#type-connect_option

Answer 2

The problem is not the parameters, which are correct, but the address. To call into erlang, you need to use a character list

{:ok, socket} = :gen_tcp.connect('127.0.0.1', 2000, [:binary, packet: 0])

Note '127.0.0.1' instead of "127.0.0.1" .