Add return type for requests.

include/mastodonpp.hpp

@@ -17,6 +17,7 @@
 #ifndef MASTODONPP_HPP
 #define MASTODONPP_HPP
 
+#include "return_types.hpp"
 #include <string>
 
 namespace mastodonpp

include/return_types.hpp

@@ -0,0 +1,46 @@
+/*  This file is part of mastodonpp.
+ *  Copyright © 2020 tastytea <tastytea@tastytea.de>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU Affero General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Affero General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Affero General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef MASTODONPP_RETURN_TYPES_HPP
+#define MASTODONPP_RETURN_TYPES_HPP
+
+#include <cstdint>
+#include <string>
+#include <string_view>
+
+namespace mastodonpp
+{
+
+using std::uint8_t;
+using std::uint16_t;
+using std::string;
+using std::string_view;
+
+struct answer
+{
+    uint8_t error_code;
+    string error_message;
+    uint16_t http_status;
+    string body;
+
+    explicit operator bool() const;
+    explicit operator string_view() const;
+    friend std::ostream &operator <<(std::ostream &out, const answer &answer);
+};
+
+} // namespace mastodonpp
+
+#endif  // MASTODONPP_RETURN_TYPES_HPP

src/return_types.cpp

@@ -0,0 +1,38 @@
+/*  This file is part of mastodonpp.
+ *  Copyright © 2020 tastytea <tastytea@tastytea.de>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU Affero General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Affero General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Affero General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "return_types.hpp"
+
+namespace mastodonpp
+{
+
+answer::operator bool() const
+{
+    return (error_code == 0);
+}
+
+answer::operator string_view() const
+{
+    return body;
+}
+
+std::ostream &operator <<(std::ostream &out, const answer &answer)
+{
+    out << answer.body;
+    return out;
+}
+
+} // namespace mastodonpp