From c9a87b3771ee4156123c96397a45afa905560232 Mon Sep 17 00:00:00 2001
From: Justin Starry <justin@solana.com>
Date: Sat, 21 Nov 2020 15:07:58 +0800
Subject: [PATCH] fix: obligation token mint

---
 src/actions/account.ts | 24 +++++++++++++++++++++++-
 src/actions/borrow.tsx |  3 ++-
 2 files changed, 25 insertions(+), 2 deletions(-)

diff --git a/src/actions/account.ts b/src/actions/account.ts
index 883530c..f428008 100644
--- a/src/actions/account.ts
+++ b/src/actions/account.ts
@@ -1,4 +1,4 @@
-import { AccountLayout, Token } from "@solana/spl-token";
+import { AccountLayout, MintLayout, Token } from "@solana/spl-token";
 import {
   Account,
   PublicKey,
@@ -75,6 +75,28 @@ export function createTempMemoryAccount(
   return account.publicKey;
 }
 
+export function createUninitializedMint(
+  instructions: TransactionInstruction[],
+  payer: PublicKey,
+  amount: number,
+  signers: Account[]
+) {
+  const account = new Account();
+  instructions.push(
+    SystemProgram.createAccount({
+      fromPubkey: payer,
+      newAccountPubkey: account.publicKey,
+      lamports: amount,
+      space: MintLayout.span,
+      programId: TOKEN_PROGRAM_ID,
+    })
+  );
+
+  signers.push(account);
+
+  return account.publicKey;
+}
+
 export function createUninitializedAccount(
   instructions: TransactionInstruction[],
   payer: PublicKey,
diff --git a/src/actions/borrow.tsx b/src/actions/borrow.tsx
index fb4a178..4d59073 100644
--- a/src/actions/borrow.tsx
+++ b/src/actions/borrow.tsx
@@ -12,6 +12,7 @@ import { LENDING_PROGRAM_ID, TOKEN_PROGRAM_ID } from "../constants/ids";
 import {
   createTempMemoryAccount,
   createUninitializedAccount,
+  createUninitializedMint,
   ensureSplAccount,
   findOrCreateAccountByMint,
 } from "./account";
@@ -60,7 +61,7 @@ export const borrow = async (
     signers
   );
 
-  const obligationMint = createUninitializedAccount(
+  const obligationMint = createUninitializedMint(
     instructions,
     wallet.publicKey,
     await connection.getMinimumBalanceForRentExemption(MintLayout.span),