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Qt6QMLBeginnersCode/14-Networking/2-XmlHttpRequest/CMakeLists.txt

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+cmake_minimum_required(VERSION 3.16)
+
+project(2-XmlHttpRequest VERSION 0.1 LANGUAGES CXX)
+
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
+find_package(Qt6 6.4 REQUIRED COMPONENTS Quick)
+
+qt_standard_project_setup()
+
+qt_add_executable(app2-XmlHttpRequest
+    main.cpp
+)
+
+qt_add_qml_module(app2-XmlHttpRequest
+    URI 2-XmlHttpRequest
+    VERSION 1.0
+    QML_FILES Main.qml
+)
+
+# Qt for iOS sets MACOSX_BUNDLE_GUI_IDENTIFIER automatically since Qt 6.1.
+# If you are developing for iOS or macOS you should consider setting an
+# explicit, fixed bundle identifier manually though.
+set_target_properties(app2-XmlHttpRequest PROPERTIES
+#    MACOSX_BUNDLE_GUI_IDENTIFIER com.example.app2-XmlHttpRequest
+    MACOSX_BUNDLE_BUNDLE_VERSION ${PROJECT_VERSION}
+    MACOSX_BUNDLE_SHORT_VERSION_STRING ${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}
+    MACOSX_BUNDLE TRUE
+    WIN32_EXECUTABLE TRUE
+)
+
+target_link_libraries(app2-XmlHttpRequest
+    PRIVATE Qt6::Quick
+)
+
+include(GNUInstallDirs)
+install(TARGETS app2-XmlHttpRequest
+    BUNDLE DESTINATION .
+    LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
+    RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
+)

Qt6QMLBeginnersCode/14-Networking/2-XmlHttpRequest/Main.qml

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+import QtQuick
+import QtQuick.Controls
+
+Window {
+    width: 640
+    height: 480
+    visible: true
+    title: qsTr("XmlHttpRequest")
+
+    //Process the data right away
+    /*
+    function downloadData(url){
+        //Create the object
+        var xhr = new XMLHttpRequest()
+
+        //Apply initial settings to the object
+        xhr.onreadystatechange = function(){
+            //HEADERS_RECEIVED
+            //DONE
+
+            if(xhr.readyState === XMLHttpRequest.HEADERS_RECEVED){
+                console.log("Headers received")
+            }else if(xhr.readyState === XMLHttpRequest.DONE){
+                if(xhr.status == 200){
+                    //console.log("Got the data from the server it is: " + xhr.responseText.toString())
+                    textAreaId.text = xhr.responseText.toString()
+                }else{
+                    console.log("Something went wrong")
+                }
+
+            }
+        }
+        xhr.open("GET",url)
+        xhr.send()
+    }
+    */
+
+    //Go through a callback
+    function downloadData(url,callback){
+        //Create the object
+        var xhr = new XMLHttpRequest()
+
+        //Apply initial settings to the object
+        xhr.onreadystatechange = function(){
+            //HEADERS_RECEIVED
+            //DONE
+
+            if(xhr.readyState === XMLHttpRequest.HEADERS_RECEVED){
+                console.log("Headers received")
+            }else if(xhr.readyState === XMLHttpRequest.DONE){
+                if(xhr.status == 200){
+                    //console.log("Got the data from the server it is: " + xhr.responseText.toString())
+                    //textAreaId.text = xhr.responseText.toString()
+                    callback(xhr.responseText.toString())
+                }else{
+                    console.log("Something went wrong")
+                }
+
+            }
+        }
+        xhr.open("GET",url)
+        xhr.send()
+    }
+
+    TextArea{
+        id: textAreaId
+        anchors.fill: parent
+        textFormat: TextArea.RichText
+        text: "Click to download html data"
+
+    }
+
+    MouseArea{
+        anchors.fill: parent
+        onClicked: function(){
+            /*
+              Urls to try :
+                . https://www.qt.io/
+                . https://github.com/
+                . https://jsonplaceholder.typicode.com/
+              */
+            //Download data right away
+            /*
+            console.log("Clicked")
+            downloadData("https://www.qt.io")
+            */
+
+            //Download the data through a callback
+            downloadData("https://jsonplaceholder.typicode.com/",function(response){
+                if(response){
+                    textAreaId.text = response
+                }else{
+                    console.log("Something went wrong")
+                }
+
+            })
+        }
+    }
+}

Qt6QMLBeginnersCode/14-Networking/2-XmlHttpRequest/main.cpp

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+#include <QGuiApplication>
+#include <QQmlApplicationEngine>
+
+int main(int argc, char *argv[])
+{
+    QGuiApplication app(argc, argv);
+
+    QQmlApplicationEngine engine;
+    const QUrl url(u"qrc:/2-XmlHttpRequest/Main.qml"_qs);
+    QObject::connect(
+        &engine,
+        &QQmlApplicationEngine::objectCreationFailed,
+        &app,
+        []() { QCoreApplication::exit(-1); },
+        Qt::QueuedConnection);
+    engine.load(url);
+
+    return app.exec();
+}