chore: migrate sign typed data to ethers

package.json

@@ -1,7 +1,7 @@
 {
     "name": "@1inch/fusion-sdk",
     "version": "2.0.1",
-    "description": "1inch Fusion Mode SDK",
+    "description": "1inch Fusion SDK",
     "author": "@1inch",
     "private": false,
     "main": "dist/index.js",
@@ -29,8 +29,6 @@
     "dependencies": {
         "@1inch/byte-utils": "2.2.1",
         "@1inch/limit-order-sdk": "^4.8.7",
-        "@metamask/eth-sig-util": "^5.1.0",
-        "bn.js": "^5.2.1",
         "ethers": "6.11.0",
         "tslib": "^2.6.2",
         "ws": "^8.16.0"

src/connector/blockchain/private-key-provider.connector.ts

@@ -1,33 +1,33 @@
-import {signTypedData, SignTypedDataVersion} from '@metamask/eth-sig-util'
 import {EIP712TypedData} from '@1inch/limit-order-sdk'
+import {Wallet} from 'ethers'
 import {BlockchainProviderConnector} from './blockchain-provider.connector'
 import {Web3Like} from './web3-provider-connector'
+import {add0x} from '../../utils'
 
 export class PrivateKeyProviderConnector
     implements BlockchainProviderConnector
 {
-    private readonly privateKeyBuffer: Buffer
+    private readonly wallet: Wallet
 
     constructor(
         readonly privateKey: string,
         protected readonly web3Provider: Web3Like
     ) {
-        this.privateKeyBuffer = Buffer.from(privateKey.replace('0x', ''), 'hex')
+        this.wallet = new Wallet(add0x(privateKey))
     }
 
     signTypedData(
         _walletAddress: string,
         typedData: EIP712TypedData
     ): Promise<string> {
-        const result = signTypedData({
-            privateKey: this.privateKeyBuffer,
-            // eslint-disable-next-line @typescript-eslint/ban-ts-comment
-            // @ts-ignore
-            data: typedData,
-            version: SignTypedDataVersion.V4
-        })
+        const primaryTypes = {...typedData.types}
+        delete primaryTypes['EIP712Domain']
 
-        return Promise.resolve(result)
+        return this.wallet.signTypedData(
+            typedData.domain,
+            primaryTypes,
+            typedData.message
+        )
     }
 
     ethCall(contractAddress: string, callData: string): Promise<string> {

src/index.ts

@@ -28,5 +28,7 @@ export {
     QuoterCustomPresetRequest,
     PresetEnum,
     Preset,
-    Quote
+    Quote,
+    OrderStatusResponse,
+    OrderStatus
 } from './api'