From fda953b3c99941245c598e784fdf8ce9cee2f3b7 Mon Sep 17 00:00:00 2001
From: siddhant-k08 <kulkarni.sid0809@gmail.com>
Date: Mon, 28 Apr 2025 23:02:22 +0530
Subject: [PATCH] fix: removed `customChains` and switched to LTS of `viem`

---
 packages/nextjs/package.json                  |  2 +-
 packages/nextjs/scaffold.config.ts            |  3 +--
 packages/nextjs/utils/customChains.ts         | 21 -------------------
 .../nextjs/utils/scaffold-eth/networks.ts     |  5 ++---
 4 files changed, 4 insertions(+), 27 deletions(-)
 delete mode 100644 packages/nextjs/utils/customChains.ts

diff --git a/packages/nextjs/package.json b/packages/nextjs/package.json
index 182c325..c050345 100644
--- a/packages/nextjs/package.json
+++ b/packages/nextjs/package.json
@@ -31,7 +31,7 @@
     "react-dom": "^18.3.1",
     "react-hot-toast": "^2.4.0",
     "usehooks-ts": "^3.1.0",
-    "viem": "2.21.32",
+    "viem": "2.28.0",
     "wagmi": "2.12.23",
     "zustand": "^5.0.0"
   },
diff --git a/packages/nextjs/scaffold.config.ts b/packages/nextjs/scaffold.config.ts
index d415ad7..2aacc66 100644
--- a/packages/nextjs/scaffold.config.ts
+++ b/packages/nextjs/scaffold.config.ts
@@ -1,4 +1,3 @@
-import { monadTestnet } from "./utils/customChains";
 import * as chains from "viem/chains";
 
 export type ScaffoldConfig = {
@@ -11,7 +10,7 @@ export type ScaffoldConfig = {
 
 const scaffoldConfig = {
   // The networks on which your DApp is live
-  targetNetworks: [monadTestnet],
+  targetNetworks: [chains.monadTestnet],
 
   // The interval at which your front-end polls the RPC servers for new data
   // it has no effect if you only target the local network (default is 4000)
diff --git a/packages/nextjs/utils/customChains.ts b/packages/nextjs/utils/customChains.ts
deleted file mode 100644
index 012cf58..0000000
--- a/packages/nextjs/utils/customChains.ts
+++ /dev/null
@@ -1,21 +0,0 @@
-import { defineChain } from "viem";
-
-// TODO: Add Chain details here.
-export const monadTestnet = defineChain({
-  id: 10143,
-  name: "Monad Testnet",
-  nativeCurrency: { name: "Monad", symbol: "MON", decimals: 18 },
-  rpcUrls: {
-    default: {
-      // TODO: Add Monad RPC URL
-      http: ["<MONAD_RPC_URL>"],
-    },
-  },
-  blockExplorers: {
-    default: {
-      name: "Monad Testnet Blockscout",
-      // TODO: Add Explorer URL
-      url: "https://testnet.monadexplorer.com",
-    },
-  },
-});
diff --git a/packages/nextjs/utils/scaffold-eth/networks.ts b/packages/nextjs/utils/scaffold-eth/networks.ts
index fe26931..25347c4 100644
--- a/packages/nextjs/utils/scaffold-eth/networks.ts
+++ b/packages/nextjs/utils/scaffold-eth/networks.ts
@@ -1,4 +1,3 @@
-import { monadTestnet } from "../customChains";
 import * as chains from "viem/chains";
 import scaffoldConfig from "~~/scaffold.config";
 
@@ -14,7 +13,7 @@ export type ChainWithAttributes = chains.Chain & Partial<ChainAttributes>;
 
 // Mapping of chainId to RPC chain name an format followed by alchemy and infura
 export const RPC_CHAIN_NAMES: Record<number, string> = {
-  [monadTestnet.id]: "monad-testnet",
+  [chains.monadTestnet.id]: "monad-testnet",
 };
 
 export const getAlchemyHttpUrl = (chainId: number) => {
@@ -24,7 +23,7 @@ export const getAlchemyHttpUrl = (chainId: number) => {
 };
 
 export const NETWORKS_EXTRA_DATA: Record<string, ChainAttributes> = {
-  [monadTestnet.id]: {
+  [chains.monadTestnet.id]: {
     color: "#200052",
   },
 };