Joken

Encodes and decodes JSON Web Tokens.

Usage:

Looks for a joken config block with secret_key, algorithm, and json_module. Json module being a module that implements the Joken.Codec Behaviour

defmodule My.Json.Module do
  alias Poison, as: JSON
  @behaviour Joken.Json

  def encode(map) do
    JSON.encode!(map)
  end

  def decode(binary) do
    JSON.decode!(binary, keys: :atoms!)
  end
end

 config :joken
   secret_key: "test",
   json_module: My.Json.Module,
   algorithm: :HS256, #Optional. defaults to :HS256

then to encode and decode

{:ok, token} = Joken.encode(%{username: "johndoe"})

{:ok, decoded_payload} = Joken.decode(jwt)