{base_string, "GET&http%3A%2F%2Fphotos.example.net%2Fphotos&file%3Dvacation.jpg%26oauth_consumer_key%3Ddpf43f3p2l4k3l03%26oauth_nonce%3Dkllo9940pd9333jh%26oauth_signature_method%3DHMAC-SHA1%26oauth_timestamp%3D1191242096%26oauth_token%3Dnnch734d00sl2jdk%26oauth_version%3D1.0%26size%3Doriginal"}.

{method, "GET"}.

{url, "http://photos.example.net/photos"}.

{params, [
  {"file", "vacation.jpg"},
  {"size", "original"},
  {"oauth_version", "1.0"},
  {"oauth_consumer_key", "dpf43f3p2l4k3l03"},
  {"oauth_token", "nnch734d00sl2jdk"},
  {"oauth_timestamp", "1191242096"},
  {"oauth_nonce", "kllo9940pd9333jh"},
  {"oauth_signature_method", "HMAC-SHA1"}
]}.