NOISSUE bulk addition of code from Katabasis

libraries/katabasis/src/JsonResponse.cpp

@@ -0,0 +1,26 @@
+#include "JsonResponse.h"
+
+#include <QByteArray>
+#include <QDebug>
+#include <QJsonDocument>
+#include <QJsonObject>
+
+namespace Katabasis {
+
+QVariantMap parseJsonResponse(const QByteArray &data) {
+    QJsonParseError err;
+    QJsonDocument doc = QJsonDocument::fromJson(data, &err);
+    if (err.error != QJsonParseError::NoError) {
+        qWarning() << "parseTokenResponse: Failed to parse token response due to err:" << err.errorString();
+        return QVariantMap();
+    }
+
+    if (!doc.isObject()) {
+        qWarning() << "parseTokenResponse: Token response is not an object";
+        return QVariantMap();
+    }
+
+    return doc.object().toVariantMap();
+}
+
+}