Function EncodeJwtHeader

tensorflow/core/platform/cloud/oauth_client.cc:155–167

Encodes a header for a JSON web token (JWT) to make an OAuth request.

/// Encodes a header for a JSON web token (JWT) to make an OAuth request.
Status EncodeJwtHeader(StringPiece key_id, string* encoded) {
  // Step 1: create the JSON with the header.
  Json::Value root;
  root["alg"] = kCryptoAlgorithm;
  root["typ"] = kJwtType;
  root["kid"] = Json::Value(key_id.begin(), key_id.end());

  // Step 2: represent the JSON as a string.
  const string header = root.toStyledString();

  // Step 3: encode the string as base64.
  return Base64Encode(header, encoded);
}

}  // namespace