🔄 synced file(s) with circlefin/modularwallets-web-sdk-internal (#7)

synced local file(s) with
[circlefin/modularwallets-web-sdk-internal](https://github.com/circlefin/modularwallets-web-sdk-internal).



<details>
<summary>Changed files</summary>
<ul>
<li>synced local directory <code>packages/</code> with remote directory
<code>packages/</code></li>
</ul>
</details>

---

This PR was created automatically by the
[repo-file-sync-action](https://github.com/BetaHuhn/repo-file-sync-action)
workflow run
[#13492226453](https://github.com/circlefin/modularwallets-web-sdk-internal/actions/runs/13492226453)

Author: circle-github-action-bot

packages/w3s-web-core-sdk/package.json

@@ -1,7 +1,7 @@
 {
   "name": "@circle-fin/modular-wallets-core",
   "description": "Serverless Typescript SDK",
-  "version": "1.0.3",
+  "version": "1.0.4",
   "main": "./dist/index.js",
   "module": "./dist/index.mjs",
   "types": "./dist/index.d.ts",

packages/w3s-web-core-sdk/src/__mocks__/index.ts

@@ -19,3 +19,4 @@
 export * from './accounts'
 export * from './clients'
 export * from './providers'
+export * from './utils'

packages/w3s-web-core-sdk/src/__mocks__/utils/encoding/encodeTransfer.Mock.ts

@@ -0,0 +1,41 @@
+/**
+ * Copyright 2025 Circle Internet Group, Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: Apache-2.0.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at.
+ *
+ * Http://www.apache.org/licenses/LICENSE-2.0.
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import type { Hex } from 'viem'
+
+/**
+ * Mocks for the utility function - encodeTransfer to address parameter.
+ */
+export const MockRecipientAddress: Hex =
+  '0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266'
+
+/**
+ * Mocks for the utility function - encodeTransfer response.
+ */
+export const MockEncodedPredefinedTokenTransferResult = {
+  data: '0xa9059cbb000000000000000000000000f39fd6e51aad88f6f4ce6ab8827279cfffb922660000000000000000000000000000000000000000000000000000000000000064',
+  to: '0x41e94eb019c0762f9bfcf9fb1e58725bfb0e7582',
+}
+
+/**
+ * Mocks for the utility function - encodeTransfer response.
+ */
+export const MockEncodedERC20TransferResult = {
+  data: '0xa9059cbb000000000000000000000000f39fd6e51aad88f6f4ce6ab8827279cfffb9226600000000000000000000000000000000000000000000000000000000000003e8',
+  to: '0x1c7D4B196Cb0C7B01d743Fbc6116a902379C7238',
+}

packages/w3s-web-core-sdk/src/__mocks__/utils/encoding/index.ts

@@ -0,0 +1,19 @@
+/**
+ * Copyright 2025 Circle Internet Group, Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: Apache-2.0.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at.
+ *
+ * Http://www.apache.org/licenses/LICENSE-2.0.
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+export * from './encodeTransfer.Mock'

packages/w3s-web-core-sdk/src/__mocks__/utils/index.ts

@@ -0,0 +1,19 @@
+/**
+ * Copyright 2025 Circle Internet Group, Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: Apache-2.0.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at.
+ *
+ * Http://www.apache.org/licenses/LICENSE-2.0.
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+export * from './encoding'

packages/w3s-web-core-sdk/src/__tests__/utils/encoding/encodeTransfer.test.ts

@@ -0,0 +1,45 @@
+/**
+ * Copyright 2025 Circle Internet Group, Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: Apache-2.0.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at.
+ *
+ * Http://www.apache.org/licenses/LICENSE-2.0.
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import {
+  MockEncodedERC20TransferResult,
+  MockEncodedPredefinedTokenTransferResult,
+  MockRecipientAddress,
+} from '../../../__mocks__'
+import { ContractAddress } from '../../../constants'
+import { encodeTransfer } from '../../../utils'
+
+describe('Utils > encoding > encodeTransfer', () => {
+  it('should encode an ERC-20 transfer correctly using the pre-defined token list', () => {
+    const result = encodeTransfer(
+      MockRecipientAddress,
+      ContractAddress.PolygonAmoy_USDC,
+      100n,
+    )
+    expect(result).toEqual(MockEncodedPredefinedTokenTransferResult)
+  })
+
+  it('should encode an ERC-20 transfer correctly using the passed-in token address', () => {
+    const result = encodeTransfer(
+      MockRecipientAddress,
+      '0x1c7D4B196Cb0C7B01d743Fbc6116a902379C7238',
+      1000n,
+    )
+    expect(result).toEqual(MockEncodedERC20TransferResult)
+  })
+})

packages/w3s-web-core-sdk/src/constants/contractAddress.ts

@@ -0,0 +1,27 @@
+/**
+ * Copyright 2025 Circle Internet Group, Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: Apache-2.0.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at.
+ *
+ * Http://www.apache.org/licenses/LICENSE-2.0.
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+export enum ContractAddress {
+  Arbitrum_USDC = '0xaf88d065e77c8cC2239327C5EDb3A432268e5831',
+  Arbitrum_ARB = '0x912CE59144191C1204E64559FE8253a0e49E6548',
+  ArbitrumSepolia_USDC = '0x75faf114eafb1BDbe2F0316DF893fd58CE46AA4d',
+
+  // Polygon Tokens
+  Polygon_USDC = '0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359',
+  PolygonAmoy_USDC = '0x41e94eb019c0762f9bfcf9fb1e58725bfb0e7582',
+}

packages/w3s-web-core-sdk/src/constants/index.ts

@@ -16,5 +16,6 @@
  * limitations under the License.
  */
 
+export * from './contractAddress'
 export * from './provider'
 export * from './smartAccount'

packages/w3s-web-core-sdk/src/index.ts

@@ -25,9 +25,15 @@ export * from './actions'
 // Clients
 export * from './clients'
 
+// Constants
+export { ContractAddress } from './constants'
+
 // Providers
 export * from './providers'
 
+// Utils
+export { encodeTransfer } from './utils'
+
 // Types
 export {
   WebAuthnMode,

packages/w3s-web-core-sdk/src/types/modularWallets.ts

@@ -120,3 +120,17 @@ export interface ModularWallet {
  * The Get Circle modular wallet address response.
  */
 export type GetAddressReturnType = ModularWallet
+
+/**
+ * The return type for encodeTransfer.
+ */
+export interface EncodeTransferReturnType {
+  /**
+   * The encoded data.
+   */
+  data: Hex
+  /**
+   * The token address.
+   */
+  to: Hex
+}

packages/w3s-web-core-sdk/src/utils/encoding/encodeTransfer.ts

@@ -0,0 +1,44 @@
+/**
+ * Copyright 2025 Circle Internet Group, Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: Apache-2.0.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at.
+ *
+ * Http://www.apache.org/licenses/LICENSE-2.0.
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import { encodeFunctionData, erc20Abi } from 'viem'
+
+import type { EncodeTransferReturnType } from '../../types'
+import type { ContractAddress } from 'src/constants'
+import type { Hex } from 'viem'
+
+/**
+ * Encode the ERC20 transfer for user operations.
+ * @param to - The recipient address.
+ * @param token - The token address you want to transfer.
+ * @param amount - The amount to transfer.
+ * @returns The encoded transfer.
+ */
+export function encodeTransfer(
+  to: Hex,
+  token: ContractAddress | Hex,
+  amount: bigint,
+): EncodeTransferReturnType {
+  const data = encodeFunctionData({
+    abi: erc20Abi,
+    functionName: 'transfer',
+    args: [to, amount],
+  })
+
+  return { data, to: token }
+}

packages/w3s-web-core-sdk/src/utils/encoding/index.ts

@@ -0,0 +1,19 @@
+/**
+ * Copyright 2025 Circle Internet Group, Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: Apache-2.0.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at.
+ *
+ * Http://www.apache.org/licenses/LICENSE-2.0.
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+export * from './encodeTransfer'

packages/w3s-web-core-sdk/src/utils/index.ts

@@ -17,6 +17,7 @@
  */
 
 export * from './address'
+export * from './encoding'
 export * from './mock'
 export * from './publicKey'
 export * from './rpc'