Initialized proper project structure

internal/api/response/json.go

@@ -0,0 +1,33 @@
+package response
+
+import (
+	"encoding/json"
+	"log"
+	"net/http"
+)
+
+func JSON(w http.ResponseWriter, status int, data any) {
+	payload, err := json.Marshal(data)
+	if err != nil {
+		w.Header().Set("Content-Type", "application/json")
+		w.WriteHeader(http.StatusInternalServerError)
+		_, err := w.Write([]byte(`{"error": "internal server error: failed to marshal response"}`))
+		if err != nil {
+			log.Println(err)
+			return
+		}
+		return
+	}
+
+	w.Header().Set("Content-Type", "application/json")
+	w.WriteHeader(status)
+	_, err = w.Write(payload)
+	if err != nil {
+		log.Println(err)
+		return
+	}
+}
+
+func Error(w http.ResponseWriter, status int, message string) {
+	JSON(w, status, map[string]string{"error": message})
+}