From 652bccc45d23c565824d2a4bd5c5d58329610a53 Mon Sep 17 00:00:00 2001
From: Andre Martins <andmart@gmail.com>
Date: Tue, 1 Oct 2024 00:17:11 +0100
Subject: [PATCH] Method to get the marketAuthority(PDA) from the Market
 Initialization Reference:
 https://github.com/raydium-io/raydium-sdk/blob/f4b7f47e744c12a8b0119b85e16d0d8274aa5ba9/src/serum/serum.ts#L41

---
 keys.go | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/keys.go b/keys.go
index fa650fe7..75afe257 100644
--- a/keys.go
+++ b/keys.go
@@ -675,3 +675,19 @@ func FindTokenMetadataAddress(mint PublicKey) (PublicKey, uint8, error) {
 	}
 	return FindProgramAddress(seed, TokenMetadataProgramID)
 }
+
+// Get the marketAuthority(PDA) from the Market Initialization
+func GetAssociatedAuthority(programID PublicKey, marketAddr PublicKey) (PublicKey, uint8, error) {
+	var address PublicKey
+	var err error
+	bumpSeed := uint8(0)
+	endSeed := []byte{0, 0, 0, 0, 0, 0, 0}
+	for bumpSeed < 100 {
+		address, err = CreateProgramAddress([][]byte{marketAddr[:], []byte{byte(bumpSeed)}, endSeed}, programID)
+		if err == nil {
+			return address, bumpSeed, nil
+		}
+		bumpSeed++
+	}
+	return PublicKey{}, bumpSeed, errors.New("unable to find a valid program address")
+}