Fix null pointer exception in estimate gas API

kardiachain · Jan 31, 2021 · 8f40d01 · 8f40d01
1 parent 8bd0cc8
commit 8f40d01
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/mainchain/api.go b/mainchain/api.go
@@ -718,6 +718,9 @@ func (s *PublicKaiAPI) EstimateGas(ctx context.Context, args types.CallArgsJSON,
 		if err != nil {
 			return 0, err
 		}
+		if block == nil {
+			return 0, errors.New("block not found")
+		}
 		hi = block.GasLimit()
 	}
 	cap = hi