From 476854ec13d337566874fbbdeb613b507d48223b Mon Sep 17 00:00:00 2001
From: Ryan Ghods <ralxzryan@gmail.com>
Date: Fri, 5 Apr 2024 13:34:00 -0700
Subject: [PATCH] add blast chains (#1435)

---
 package.json       | 2 +-
 src/types.ts       | 8 ++++++--
 src/utils/utils.ts | 7 ++++++-
 3 files changed, 13 insertions(+), 4 deletions(-)

diff --git a/package.json b/package.json
index fba02a8b3..c9dbdb332 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "opensea-js",
-  "version": "7.1.3",
+  "version": "7.1.4",
   "description": "TypeScript SDK for the OpenSea marketplace helps developers build new experiences using NFTs and our marketplace data",
   "license": "MIT",
   "author": "OpenSea Developers",
diff --git a/src/types.ts b/src/types.ts
index 67bd90463..ead013a1f 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -105,8 +105,10 @@ export enum Chain {
   Polygon = "matic",
   /** Klaytn */
   Klaytn = "klaytn",
-  /** Base L2 */
+  /** Base */
   Base = "base",
+  /** Blast */
+  Blast = "blast",
   /** Binance Smart Chain */
   BNB = "bsc",
   /** Arbitrum */
@@ -130,8 +132,10 @@ export enum Chain {
   Mumbai = "mumbai",
   /** Klaytn Baobab */
   Baobab = "baobab",
-  /** Base L2 Testnet */
+  /** Base Testnet */
   BaseSepolia = "base_sepolia",
+  /** Blast Testnet */
+  BlastSepolia = "blast_sepolia",
   /** Binance Smart Chain Testnet */
   BNBTestnet = "bsctestnet",
   /** Arbitrum Testnet */
diff --git a/src/utils/utils.ts b/src/utils/utils.ts
index c1911f2bd..ad042c1b0 100644
--- a/src/utils/utils.ts
+++ b/src/utils/utils.ts
@@ -196,7 +196,11 @@ export const getWETHAddress = (chain: Chain) => {
       return "0x722e8bdd2ce80a4422e880164f2079488e115365";
     case Chain.ArbitrumSepolia:
       return "0x980b62da83eff3d4576c647993b0c1d7faf17c73";
-    // OP Chains have weth at the same address
+    case Chain.Blast:
+      return "0x4300000000000000000000000000000000000004";
+    case Chain.BlastSepolia:
+      return "0x4200000000000000000000000000000000000023";
+    // OP Chains have WETH at the same address
     case Chain.Base:
     case Chain.BaseSepolia:
     case Chain.Optimism:
@@ -261,6 +265,7 @@ export const isTestChain = (chain: Chain): boolean => {
     case Chain.Mumbai:
     case Chain.Baobab:
     case Chain.BaseSepolia:
+    case Chain.BlastSepolia:
     case Chain.BNBTestnet:
     case Chain.ArbitrumSepolia:
     case Chain.Fuji: