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Remote controlled frontend framework for Phoenix.
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lib/drab/coder/string.ex
defmodule Drab.Coder.String do
@moduledoc false
@spec encode(term) :: Drab.Coder.return()
@doc """
Encrypt any term and encode it to Base64.
iex> {:ok, t} = Drab.Coder.String.encode(1)
iex> t
"g2EB"
"""
def encode(term) do
term
|> :erlang.term_to_binary()
|> Drab.Coder.Base64.encode()
end
@spec encode!(term) :: String.t()
@doc """
Encrypt any term and encode it to Base64.
iex> Drab.Coder.String.encode!("test")
"g20AAAAEdGVzdA=="
"""
def encode!(term) do
term
|> :erlang.term_to_binary()
|> Drab.Coder.Base64.encode!()
end
@spec decode(String.t()) :: Drab.Coder.return()
@doc """
Decrypt and base-64 decode string. Returns term.
iex> {:ok, encoded} = Drab.Coder.String.encode([1,2,3])
iex> Drab.Coder.String.decode(encoded)
{:ok, [1,2,3]}
"""
def decode(string) do
case Drab.Coder.Base64.decode(string) do
{:ok, s} -> {:ok, :erlang.binary_to_term(s)}
error -> error
end
end
@spec decode!(String.t()) :: term
@doc """
Decrypt and base-64 decode string. Returns term.
iex> encoded = Drab.Coder.String.encode!(%{a: 1})
iex> Drab.Coder.String.decode!(encoded)
%{a: 1}
"""
def decode!(string) do
string
|> Drab.Coder.Base64.decode!()
|> :erlang.binary_to_term()
end
end