Implemented JSON Service

JsonService.cpp

@@ -0,0 +1,25 @@
+#include "JsonService.h"
+#include "thirdparty/json.hpp"
+#include <fstream>
+#include <stdexcept>
+
+using nlohmann::json;
+
+Weather JsonService::getWeather(std::string s) {
+    std::ifstream fin(s);
+    if (!fin)
+        throw std::runtime_error("error"); // Linux support
+
+    json j;
+    j = json::parse(fin);
+
+    std::string city = j["name"]; //  Киров
+    double lon = j["coord"]["lon"]; // 49.6601
+    double lat = j["coord"]["lat"]; // 58.5966
+    double temperature = j["main"]["temp"]; // 5.69
+    std::string weather = j["weather"][0]["description"]; // дождь
+    double windSpeed = j["wind"]["speed"]; // 4.27
+    int clouds = j["clouds"]["all"]; // 100
+
+    return Weather(city, lon, lat, temperature, weather, windSpeed, clouds);
+}