Class header

include/jwt-cpp/jwt.h:2917–2986

	 */
	template<typename json_traits>
	class header {
	protected:
		details::map_of_claims<json_traits> header_claims;

	public:
		using basic_claim_t = basic_claim<json_traits>;
		/**
		 * Check if algorithm is present ("alg")
		 * \return true if present, false otherwise
		 */
		bool has_algorithm() const noexcept { return has_header_claim("alg"); }
		/**
		 * Check if type is present ("typ")
		 * \return true if present, false otherwise
		 */
		bool has_type() const noexcept { return has_header_claim("typ"); }
		/**
		 * Check if content type is present ("cty")
		 * \return true if present, false otherwise
		 */
		bool has_content_type() const noexcept { return has_header_claim("cty"); }
		/**
		 * Check if key id is present ("kid")
		 * \return true if present, false otherwise
		 */
		bool has_key_id() const noexcept { return has_header_claim("kid"); }
		/**
		 * 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)
		 */
		typename json_traits::string_type get_algorithm() const { return get_header_claim("alg").as_string(); }
		/**
		 * Get type claim
		 * \return type as a 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)
		 */
		typename json_traits::string_type get_type() const { return get_header_claim("typ").as_string(); }
		/**
		 * Get content type claim
		 * \return content type 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)
		 */
		typename json_traits::string_type get_content_type() const { return get_header_claim("cty").as_string(); }
		/**
		 * Get key id claim
		 * \return key id 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)
		 */
		typename json_traits::string_type get_key_id() const { return get_header_claim("kid").as_string(); }
		/**
		 * Check if a header claim is present
		 * \return true if claim was present, false otherwise
		 */