diff --git a/src/main/java/eirb/pg203/Cache.java b/src/main/java/eirb/pg203/Cache.java
new file mode 100644
index 0000000..89fc835
--- /dev/null
+++ b/src/main/java/eirb/pg203/Cache.java
@@ -0,0 +1,53 @@
+package	eirb.pg203;
+
+import java.util.HashMap;
+
+import org.json.JSONArray;
+import org.json.JSONObject;
+
+class Cache {
+	HashMap<String, String> hashMap;
+
+	public Cache() {
+		this.hashMap = new HashMap<>();
+	}
+
+	public boolean has(String key) {
+		return this.hashMap.get(key) == null;
+	}
+
+	public String get(String key) {
+		return this.hashMap.get(key);
+	}
+
+	public void set(String key, String value) {
+		this.hashMap.put(key, value);
+	}
+
+	public void flush() {
+		this.hashMap = new HashMap<>();
+	}
+
+	public void fromString(String input) {
+		JSONArray data = new JSONArray(input);
+
+		for (int i = 0 ; i < data.length() ; ++i)
+		{
+			JSONObject entry = data.getJSONObject(i);
+			String key = entry.getString("key");
+			String value = entry.getString("value");
+
+			this.hashMap.put(key, value);
+		}
+	}
+
+	public String exportString() {
+		JSONArray data = new JSONArray();
+
+		for (String key: this.hashMap.keySet())
+			data.put(this.hashMap.get(key));
+
+		return data.toString();
+	}
+}
+
diff --git a/src/main/java/eirb/pg203/WeatherData.java b/src/main/java/eirb/pg203/WeatherData.java
index 01f02f9..67790be 100644
--- a/src/main/java/eirb/pg203/WeatherData.java
+++ b/src/main/java/eirb/pg203/WeatherData.java
@@ -3,7 +3,13 @@ package eirb.pg203;
 import java.time.Instant;
 import java.util.concurrent.locks.Condition;
 
-class WeatherData {
+import org.json.JSONObject;
+
+import com.sun.net.httpserver.Authenticator.Retry;
+
+import eirb.pg203.utils.JSONCachable;
+
+class WeatherData implements JSONCachable {
 	enum Condition {
 		SUNNY("☀️"),
 		PARTIAL("🌤"),
@@ -14,6 +20,25 @@ class WeatherData {
 		private String desc;
 		Condition(String desc) { this.desc = desc; }
 
+		public static Condition fromString(String desc) {
+			switch (desc) {
+				case "☀️":
+					return SUNNY;
+
+				case "🌤":
+					return PARTIAL;
+
+				case "☁️":
+					return CLOUDY;
+
+				case "🌧":
+					return RAINY;
+			
+				default:
+					return ERROR;
+			}
+		}
+
 		@Override
 		public String toString() {
 			return this.desc;
@@ -31,6 +56,29 @@ class WeatherData {
 		NW("🡬"),
 		ERROR("E");
 
+		public static WindDirection fromString(String desc) {
+			switch (desc) {
+				case "🡩":
+					return N;
+				case "🡭":
+					return NE;
+				case "🡪":
+					return E;
+				case "🡮":
+					return SE;
+				case "🡫":
+					return S;
+				case "🡯":
+					return SW;
+				case "🡨":
+					return W;
+				case "🡬":
+					return NW;
+				default:
+					return ERROR;
+			}
+		}
+
 		private String desc;
 		WindDirection(String desc) {this.desc = desc;}
 
@@ -139,4 +187,25 @@ class WeatherData {
 				this.getWindDirection().toString()
 			);
 	}
+
+	@Override
+	public JSONObject toJSON() {
+		JSONObject jsonObject = new JSONObject();
+
+		jsonObject.put("city", city.getCityName());
+		jsonObject.put("date", date.toString());
+		jsonObject.put("temp", temp);
+		jsonObject.put("condition", condition.toString());
+		jsonObject.put("windSpeed", windSpeed);
+		jsonObject.put("windDirectionAngle", windDirectionAngle);
+		jsonObject.put("windDirection", windDirection.toString());
+
+		return null;
+	}
+
+	@Override
+	public JSONCachable fromJSON(JSONObject data) {
+		return null;
+	}
+
 }
diff --git a/src/main/java/eirb/pg203/utils/JSONCachable.java b/src/main/java/eirb/pg203/utils/JSONCachable.java
new file mode 100644
index 0000000..ad17bde
--- /dev/null
+++ b/src/main/java/eirb/pg203/utils/JSONCachable.java
@@ -0,0 +1,9 @@
+package eirb.pg203.utils;
+
+import org.json.JSONObject;
+
+public interface JSONCachable {
+	JSONObject toJSON();
+
+	JSONCachable fromJSON(JSONObject data);
+}