Objects for filtering API events

include/mtx/filters.hpp

+#pragma once
+
+#if __has_include(<nlohmann/json_fwd.hpp>)
+#include <nlohmann/json_fwd.hpp>
+#else
+#include <nlohmann/json.hpp>
+#endif
+
+#include <string>
+
+//! Filters can be created on the server and can be
+//! passed as a parameter to APIs which return events.
+
+namespace mtx {
+namespace filters {
+
+struct Filter {
+    //! A string to search for in the room metadata,
+    //! e.g. name, topic, canonical alias etc. (Optional).
+    std::string generic_search_term;
+};
+
+void
+from_json(const nlohmann::json &obj, Filter &res);
+
+void
+to_json(nlohmann::json &obj, const Filter &res);
+
+} // namespace filters
+} // namespace mtx