From aa1335dd43272892130277df1f3909793b0e2bf7 Mon Sep 17 00:00:00 2001
From: Pablo Criado-Perez <pablo@criadoperez.com>
Date: Fri, 11 Mar 2022 02:11:25 +0100
Subject: [PATCH] fetchTradingFee

---
 js/kucoin.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/js/kucoin.js b/js/kucoin.js
index 89823317ec4a1..da197d4c03986 100644
--- a/js/kucoin.js
+++ b/js/kucoin.js
@@ -66,7 +66,7 @@ module.exports = class kucoin extends Exchange {
                 'fetchTime': true,
                 'fetchTrades': true,
                 'fetchTradingFee': true,
-                'fetchTradingFees': undefined,
+                'fetchTradingFees': false,
                 'fetchWithdrawals': true,
                 'transfer': true,
                 'withdraw': true,
@@ -1682,6 +1682,8 @@ module.exports = class kucoin extends Exchange {
             'symbol': this.safeSymbol (marketId, market),
             'maker': this.safeNumber (first, 'makerFeeRate'),
             'taker': this.safeNumber (first, 'takerFeeRate'),
+            'percentage': true,
+            'tierBased': true,
         };
     }