fix: Update viem version to 2.5.0 and refactor getFunctionSelector im…

…plementation

packages/thirdweb/package.json

@@ -97,23 +97,23 @@
     "@noble/hashes": "^1.3.3",
     "@thirdweb-dev/cli": "workspace:*",
     "abitype": "^0.10.3",
-    "viem": "^2.0.10"
+    "viem": "^2.5.0"
   },
   "devDependencies": {
     "@types/react": "^18.2.17",
     "bun-types": "latest",
     "eslint-config-thirdweb": "workspace:*",
     "eslint-plugin-better-tree-shaking": "0.0.4",
     "eslint-plugin-tsdoc": "^0.2.16",
+    "ethers5": "npm:ethers@^5.0.0",
+    "ethers6": "npm:ethers@^6.0.0",
     "react": "^18.2.0",
     "rimraf": "^3.0.2",
-    "typescript": "^5.1.6",
-    "ethers5": "npm:ethers@^5.0.0",
-    "ethers6": "npm:ethers@^6.0.0"
+    "typescript": "^5.1.6"
   },
   "peerDependencies": {
-    "react": ">=18",
-    "ethers": "^5 || ^6"
+    "ethers": "^5 || ^6",
+    "react": ">=18"
   },
   "peerDependenciesMeta": {
     "react": {

packages/thirdweb/src/abi/lib/getFunctionSelector.ts

@@ -1,12 +1,7 @@
 import type { AbiFunction } from "abitype";
 import { getFunctionSignature } from "./getFunctionSignature.js";
-import { slice } from "viem/utils";
+import { toFunctionSelector } from "viem";
 import type { Hash } from "viem";
-import { keccak_256 } from "@noble/hashes/sha3";
-import { uint8ArrayToHex } from "../../utils/uint8-array.js";
-
-const hash = (value: string) =>
-  `0x${uint8ArrayToHex(keccak_256(value))}` as const;
 
 const FN_SELECTOR_CACHE = /*@__PURE__*/ new Map<string, Hash>();
 
@@ -17,7 +12,7 @@ export function getFunctionSelector(fn: string | AbiFunction): Hash {
     // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
     return FN_SELECTOR_CACHE.get(normalizedFn)!;
   }
-  const functionSelector = slice(hash(normalizedFn), 0, 4);
+  const functionSelector = toFunctionSelector(normalizedFn);
   FN_SELECTOR_CACHE.set(normalizedFn, functionSelector);
   return functionSelector;
 }