From 8dba5b44f4a5097ce1d82d5033eee00bef681fa0 Mon Sep 17 00:00:00 2001
From: tate <tate@ens.domains>
Date: Thu, 30 Mar 2023 11:06:41 +1100
Subject: [PATCH] fix: allow empty address records to be set

---
 .../ensjs/src/utils/recordHelpers.test.ts     | 19 +++++++++++++++++++
 packages/ensjs/src/utils/recordHelpers.ts     |  3 ++-
 2 files changed, 21 insertions(+), 1 deletion(-)
 create mode 100644 packages/ensjs/src/utils/recordHelpers.test.ts

diff --git a/packages/ensjs/src/utils/recordHelpers.test.ts b/packages/ensjs/src/utils/recordHelpers.test.ts
new file mode 100644
index 00000000..9f1b6930
--- /dev/null
+++ b/packages/ensjs/src/utils/recordHelpers.test.ts
@@ -0,0 +1,19 @@
+import { PublicResolver__factory } from '../generated'
+import { namehash } from './normalise'
+import { generateSetAddr } from './recordHelpers'
+
+describe('generateSetAddr()', () => {
+  it('should allow empty string as address', () => {
+    expect(() =>
+      generateSetAddr(
+        namehash('test'),
+        'BNB',
+        '',
+        PublicResolver__factory.connect(
+          '0x0000000000000000000000000000000000000000',
+          undefined as any,
+        ),
+      ),
+    ).not.toThrowError()
+  })
+})
diff --git a/packages/ensjs/src/utils/recordHelpers.ts b/packages/ensjs/src/utils/recordHelpers.ts
index 2a86a1ac..34a8cbbf 100644
--- a/packages/ensjs/src/utils/recordHelpers.ts
+++ b/packages/ensjs/src/utils/recordHelpers.ts
@@ -38,7 +38,8 @@ export const generateSetAddr = (
     coinTypeInstance = formatsByName[coinType.toUpperCase()]
   }
   const inputCoinType = coinTypeInstance.coinType
-  const encodedAddress = coinTypeInstance.decoder(address)
+  const encodedAddress =
+    address !== '' ? coinTypeInstance.decoder(address) : '0x'
   return resolver?.interface.encodeFunctionData(
     'setAddr(bytes32,uint256,bytes)',
     [namehash, inputCoinType, encodedAddress],