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Bingex - library for BingX API.

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bingex lib bingex http signature.ex
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lib/bingex/http/signature.ex 

defmodule Bingex.HTTP.Signature do

  @moduledoc false



  alias :crypto, as: Crypto

  alias Bingex.Helpers



  def generate(params, key) do

    params

    |> serialize()

    |> hash(key)

  end



  def serialize(params) do

    Enum.map_join(params, "&", fn {k, v} ->

      k <> "=" <> Helpers.serialize(v)

    end)

  end



  def hash(raw, key) when is_binary(raw) and is_binary(key) do

    Crypto.mac(:hmac, :sha256, key, raw)

    |> Base.encode16(case: :lower)

  end

end