From 0ac4599240c2f51b1c5b2f4ef3a05112e1dbe039 Mon Sep 17 00:00:00 2001
From: Arjan Gijsberts <arjan.gijsberts@gmail.com>
Date: Sat, 13 Jan 2024 23:09:57 +0100
Subject: [PATCH] Set predicted funding rate to None in OKX if nextFundingRate
 is empty.

---
 CHANGES.md                  | 3 +++
 cryptofeed/exchanges/okx.py | 2 +-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/CHANGES.md b/CHANGES.md
index 5466d50e5..b6eda98fb 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,5 +1,8 @@
 ## Changelog
 
+### 2.4.1
+ * Bugfix: Handle empty nextFundingRate in OKX
+
 ### 2.4.0 (2024-01-07)
  * Update: Fix tests
  * Update: Okcoin moved to v5 API used by OKX
diff --git a/cryptofeed/exchanges/okx.py b/cryptofeed/exchanges/okx.py
index e8dda514d..ffb4dc1ce 100644
--- a/cryptofeed/exchanges/okx.py
+++ b/cryptofeed/exchanges/okx.py
@@ -266,7 +266,7 @@ async def _funding(self, msg: dict, timestamp: float):
                 Decimal(update['fundingRate']),
                 None,
                 self.timestamp_normalize(int(update['fundingTime'])),
-                predicted_rate=Decimal(update['nextFundingRate']),
+                predicted_rate=Decimal(update['nextFundingRate']) if update['nextFundingRate'] != '' else None,
                 raw=update
             )
             await self.callback(FUNDING, f, timestamp)