class SnapTrade::ApiClientCustom

def self.request_hook(request, configuration)
  request.params[:timestamp] = Time.now.to_i
  path = request.path[request.path.index('/api/v1/')..-1]
  query = Faraday::Utils.build_query(request.params)
  sig_object = {
    "content" => request.body.nil? || request.body.empty? ? nil : Hash[JSON.parse(request.body).sort],
    "path" => path,
    "query" => query
  }
  sig_content = JSON.generate(sig_object, sort_by: :to_s)
  sig_digest = OpenSSL::HMAC.digest(OpenSSL::Digest::SHA256.new, configuration.consumer_key, sig_content)
  signature = Base64.encode64(sig_digest).strip()
  request.headers[:Signature] = signature
end