Added start of balances

handlers/balance.go

@@ -0,0 +1,12 @@
+package handlers
+
+import "net/http"
+
+func GetBalance(w http.ResponseWriter, r *http.Request) {
+	query := r.URL.Query()
+	userParam := query.Get("user")
+
+	if userParam == "" {
+
+	}
+}