From 8dc7bed4efb16aac7e3f1574078148bdce79f27c Mon Sep 17 00:00:00 2001
From: Kirill Fomichev <fanatid@ya.ru>
Date: Sat, 24 Jul 2021 20:59:12 +0300
Subject: [PATCH] ts: Use hex by default for decoding Instruction (#547)

---
 CHANGELOG.md                | 1 +
 ts/src/coder/instruction.ts | 7 +++++--
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index ab6895f370..bad98b8560 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,6 +13,7 @@ incremented for features.
 
 ### Breaking Changes
 
+* ts: Use `hex` by default for decoding Instruction ([#547](https://github.com/project-serum/anchor/pull/547)).
 * lang: `CpiAccount::reload` mutates the existing struct instead of returning a new one ([#526](https://github.com/project-serum/anchor/pull/526)).
 
 ## [0.11.1] - 2021-07-09
diff --git a/ts/src/coder/instruction.ts b/ts/src/coder/instruction.ts
index 8540ad3f3a..a6a9f8dc2d 100644
--- a/ts/src/coder/instruction.ts
+++ b/ts/src/coder/instruction.ts
@@ -109,9 +109,12 @@ export class InstructionCoder {
   /**
    * Dewcodes a program instruction.
    */
-  public decode(ix: Buffer | string): Instruction | null {
+  public decode(
+    ix: Buffer | string,
+    encoding: "hex" | "base58" = "hex"
+  ): Instruction | null {
     if (typeof ix === "string") {
-      ix = bs58.decode(ix);
+      ix = encoding === "hex" ? Buffer.from(ix, "hex") : bs58.decode(ix);
     }
     let sighash = bs58.encode(ix.slice(0, 8));
     let data = ix.slice(8);