Update 1.3.0.md

changelog/1.3.0.md

@@ -9,6 +9,7 @@ Contents:
 - [The New oatpp::String](#the-new-oatppstring)
 - [ConnectionPool::get() Timeout](#connectionpoolget-timeout)
 - [JSON Serializer Escape Flags](#json-serializer-escape-flags)
+- [ConnectionMonitor](#connectionmonitor)
 - [Response::getBody()](#responsegetbody)
 - [data::stream::FIFOStream](#datastreamfifostream)
 - [data::stream::BufferedInputStream](#datastreambufferedinputstream)
@@ -127,6 +128,38 @@ Output:
 res='"https://oatpp.io/"' # solidus isn't escaped
 ```
 
+## ConnectionMonitor
+
+`oatpp::network::monitor::ConnectionMonitor` is a middleman who's able to monitor provided connections and close those ones that not satisfy selected rules.
+
+```cpp
+OATPP_CREATE_COMPONENT(std::shared_ptr<oatpp::network::ServerConnectionProvider>, serverConnectionProvider)([] {
+
+  auto connectionProvider = oatpp::network::tcp::server::ConnectionProvider::createShared({"0.0.0.0", 8000, oatpp::network::Address::IP_4});
+  auto monitor = std::make_shared<oatpp::network::monitor::ConnectionMonitor>(connectionProvider);
+
+  /* close all connections that stay opened for more than 120 seconds */
+  monitor->addMetricsChecker(
+    std::make_shared<oatpp::network::monitor::ConnectionMaxAgeChecker>(
+        std::chrono::seconds(120)
+      )
+  );
+
+  /* close all connections that have had no successful reads and writes for longer than 5 seconds */
+  monitor->addMetricsChecker(
+    std::make_shared<oatpp::network::monitor::ConnectionInactivityChecker>(
+        std::chrono::seconds(5),
+        std::chrono::seconds(5),
+      )
+  );
+
+  return monitor;
+  
+}());
+```
+
+**Note:** `ConnectionMonitor` also works with `ClientConnectionProvider` as well.
+
 ## Response::getBody()
 
 `oatpp::web::protocol::http::outgoing::Response` has a new method `getBody()` to retreive the body of the response. This is handy for response interceptors.