From 01262d33a4fb1f2ec0d7f5cde733484bd5e53f90 Mon Sep 17 00:00:00 2001
From: Dan J Miller <danjm.com@gmail.com>
Date: Thu, 5 Aug 2021 08:33:49 -0230
Subject: [PATCH] Ensure that gas fee inputs fallback to tx params values if
 api is down (#11775)

* Ensure that gas fee inputs fallback to tx params values if down

* ensure getGasFeeEstimate fallback is a string
---
 ui/hooks/useGasFeeInputs.js | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/ui/hooks/useGasFeeInputs.js b/ui/hooks/useGasFeeInputs.js
index 7c3195fcd..6ca6da030 100644
--- a/ui/hooks/useGasFeeInputs.js
+++ b/ui/hooks/useGasFeeInputs.js
@@ -90,11 +90,12 @@ function getGasFeeEstimate(
   gasFeeEstimates,
   gasEstimateType,
   estimateToUse,
+  fallback = '0',
 ) {
   if (gasEstimateType === GAS_ESTIMATE_TYPES.FEE_MARKET) {
-    return gasFeeEstimates?.[estimateToUse]?.[field] ?? '0';
+    return gasFeeEstimates?.[estimateToUse]?.[field] ?? String(fallback);
   }
-  return '0';
+  return String(fallback);
 }
 
 /**
@@ -280,6 +281,7 @@ export function useGasFeeInputs(
       gasFeeEstimates,
       gasEstimateType,
       estimateToUse,
+      initialMaxFeePerGas,
     );
 
   const maxPriorityFeePerGasToUse =
@@ -289,6 +291,7 @@ export function useGasFeeInputs(
       gasFeeEstimates,
       gasEstimateType,
       estimateToUse,
+      initialMaxPriorityFeePerGas,
     );
 
   const [initialGasPriceEstimates] = useState(gasFeeEstimates);