Packages

soulless

0.3.0-pre
0.3.0 0.3.0-pre 0.2.3 0.2.2 0.2.1 0.2.0 0.1.8 0.1.7 0.1.6 0.1.5 0.1.4 0.1.3 0.1.2 0.1.1 0.1.0

Mahjong Soul API client

HexDocs

Current section

Files

Jump to
Readme
15 Versions
2 Dependencies
0 Dependants
Files
Activity
soulless lib soulless util.ex
Raw

lib/soulless/util.ex 

defmodule Soulless.Util do

  def generate_uuid_v4() do

    16

    |> :crypto.strong_rand_bytes()

    |> format_uuid()

  end



  def format_uuid(bytes) do

    hex = Base.encode16(bytes, case: :lower)



    "#{String.slice(hex, 0, 8)}-#{String.slice(hex, 8, 4)}-#{String.slice(hex, 12, 4)}-#{String.slice(hex, 16, 4)}-#{String.slice(hex, 20, 12)}"

  end



  def random_positive_integer(bytes \\ 7) do

    bytes

    |> :rand.bytes()

    |> :binary.decode_unsigned()

  end

end