Method get_algorithm

include/jwt-cpp/jwt.h:3904–3904

* Get algorithm claim * \return algorithm as string * \throw std::runtime_error If claim was not present * \throw std::bad_cast Claim was present but not a string (Should not happen in a valid token) */

		 * \throw std::bad_cast Claim was present but not a string (Should not happen in a valid token)
		 */
		typename json_traits::string_type get_algorithm() const { return get_jwk_claim("alg").as_string(); }

		/**
		 * Get key id claim