Initial commit based on GenericQtClient v0.3.0

libs/GenericCore/network/apiroutes.h

@@ -0,0 +1,12 @@
+#ifndef APIROUTES_H
+#define APIROUTES_H
+
+#include <QString>
+
+// TODO add namespace
+
+static const QString apiPrefix = "/api/";
+
+static const QString ROUTE_ITEMS = apiPrefix + "items";
+
+#endif  // APIROUTES_H

libs/GenericCore/network/servercommunicator.cpp

@@ -0,0 +1,106 @@
+#include "servercommunicator.h"
+#include "apiroutes.h"
+
+#include <QJsonArray>
+#include <QJsonDocument>
+#include <QJsonObject>
+#include <QRestReply>
+
+using namespace Qt::StringLiterals;
+
+ServerCommunicator::ServerCommunicator(QObject* parent)
+    : QObject{parent} {
+  m_netManager.setAutoDeleteReplies(true);
+  m_restManager = std::make_shared<QRestAccessManager>(&m_netManager);
+  m_serviceApi  = std::make_shared<QNetworkRequestFactory>();
+}
+
+bool ServerCommunicator::sslSupported() {
+#if QT_CONFIG(ssl)
+  return QSslSocket::supportsSsl();
+#else
+  return false;
+#endif
+}
+
+QUrl ServerCommunicator::url() const { return m_serviceApi->baseUrl(); }
+
+void ServerCommunicator::setUrl(const QUrl& url) {
+  if (m_serviceApi->baseUrl() == url) {
+    return;
+  }
+  m_serviceApi->setBaseUrl(url);
+  QHttpHeaders authenticationHeaders;
+  authenticationHeaders.append(QHttpHeaders::WellKnownHeader::ContentType, "application/json");
+  m_serviceApi->setCommonHeaders(authenticationHeaders);
+  emit urlChanged();
+}
+
+void ServerCommunicator::fetchItems() {
+  /// Set up a GET request
+  m_restManager->get(m_serviceApi->createRequest(ROUTE_ITEMS), this, [this](QRestReply& reply) {
+    if (reply.isSuccess()) {
+      qInfo() << "Fetching items successful.";
+      const QJsonDocument doc = reply.readJson().value();
+      emit itemsFetched(doc.toJson());
+
+    } else {
+      if (reply.hasError()) {
+        const QString errorString = reply.errorString();
+        qCritical() << "ERROR:" << errorString;
+        emit itemsFetchFailure(errorString);
+      } else {
+        int statusCode = reply.httpStatus();
+        qCritical() << "ERROR:" << statusCode;
+        emit itemsFetchFailure(QString::number(statusCode));
+        emit itemsFetchFailure(QString("HTTP status code: %1").arg(statusCode));
+      }
+    }
+  });
+}
+
+void ServerCommunicator::postItems(const QByteArray& jsonData) {
+  QNetworkReply* reply = m_restManager->post(m_serviceApi->createRequest(ROUTE_ITEMS), jsonData);
+
+  QObject::connect(reply, &QNetworkReply::finished, [=]() {
+    if (reply->error() == QNetworkReply::NoError) {
+      QByteArray responseData = reply->readAll();
+      const QString message   = QString("POST successful! Response: %1").arg(responseData);
+      qInfo() << message;
+      emit postRequestSuccessful(responseData);
+    } else {
+      const QString message = QString("Error: %1").arg(reply->errorString());
+      qDebug() << message;
+      emit postRequestFailure(message);
+    }
+    reply->deleteLater();
+  });
+}
+
+void ServerCommunicator::deleteItem(const QString& id) {
+  const QString deleteRoute = QString("%1/%2").arg(ROUTE_ITEMS, id);
+  QNetworkReply* reply = m_restManager->deleteResource(m_serviceApi->createRequest(deleteRoute));
+
+  QObject::connect(reply, &QNetworkReply::finished, [=]() {
+    if (reply->error() == QNetworkReply::NoError) {
+      QByteArray responseData = reply->readAll();
+      const QString message   = QString("DELETE successful! Response: %1").arg(responseData);
+      qInfo() << message;
+      emit deleteRequestSuccessful(responseData);
+    } else {
+      const QString message = QString("Error: %1").arg(reply->errorString());
+      qDebug() << message;
+      emit deleteRequestFailure(message);
+    }
+    reply->deleteLater();
+  });
+}
+
+void ServerCommunicator::setServerConfiguration(const QString url,
+                                                const QString email,
+                                                const QString password) {
+  setUrl(url);
+
+  m_email    = email;
+  m_password = password;
+}

libs/GenericCore/network/servercommunicator.h

@@ -0,0 +1,46 @@
+#ifndef SERVERCOMMUNICATOR_H
+#define SERVERCOMMUNICATOR_H
+
+#include <QNetworkAccessManager>
+#include <QNetworkRequestFactory>
+#include <QObject>
+#include <QRestAccessManager>
+
+class ServerCommunicator : public QObject {
+  Q_OBJECT
+ public:
+  explicit ServerCommunicator(QObject* parent = nullptr);
+
+  bool sslSupported();
+
+  QUrl url() const;
+  void setUrl(const QUrl& url);
+
+  void setServerConfiguration(const QString url, const QString email, const QString password);
+
+ public slots:
+  void fetchItems();
+  void postItems(const QByteArray& jsonData);
+  void deleteItem(const QString& id);
+
+ signals:
+  void urlChanged();
+
+  void itemsFetched(const QByteArray jsonDoc);
+  void itemsFetchFailure(const QString errorString);
+  void postRequestSuccessful(const QByteArray responseData);
+  void postRequestFailure(const QString errorString);
+  void deleteRequestSuccessful(const QByteArray responseData);
+  void deleteRequestFailure(const QString errorString);
+
+ private:
+  QNetworkAccessManager m_netManager;
+  std::shared_ptr<QRestAccessManager> m_restManager;
+  std::shared_ptr<QNetworkRequestFactory> m_serviceApi;
+
+  QString m_email;
+  QString m_password;
+  // QString m_authToken;
+};
+
+#endif  // SERVERCOMMUNICATOR_H