> For the complete documentation index, see [llms.txt](https://help.tokenpocket.pro/developer-cn/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.tokenpocket.pro/developer-cn/agentic-wallet/eip-7715-account-with-permissions/shi-yong-quan-xian-zhi-xing-jiao-yi.md).
# 使用权限执行交易
用户通过 `wallet_requestExecutionPermissions` 授权后，**Session Account**（`to` 地址）可调用 DelegationManager 的 `redeemDelegations`，在权限约束内代用户执行链上操作。本节说明如何构造并发送 redeem 交易。
### 前置条件
1. 已获得 `PermissionResponse`（含 `context`、`delegationManager`）。
2. Session Account 私钥可用，且地址等于授权中的 `to`。
3. 执行链与授权 `chainId` 一致。
### 核心合约接口（EIP-7710）
```solidity
function redeemDelegations(
bytes[] calldata permissionContexts,
bytes32[] calldata modes,
bytes[] calldata executionCallDatas
) external;
```
| 参数 | 说明 |
| -------------------- | --------------------------------- |
| `permissionContexts` | `[grant.context]` |
| `modes` | 执行模式，单笔默认 `0x0000...0000`（32 字节零） |
| `executionCallDatas` | 编码后的 `Execution` 结构 |
#### Execution 编码
```solidity
struct Execution {
address target;
uint256 value;
bytes callData;
}
```
编码方式
```typescript
function encodeSingleExecution(execution: {
target: `0x${string}`;
value: bigint;
callData: `0x${string}`;
}) {
const target = execution.target.slice(2).toLowerCase().padStart(40, "0");
const value = execution.value.toString(16).padStart(64, "0");
const data = execution.callData.slice(2);
return `0x${target}${value}${data}` as `0x${string}`;
}
```
### 按权限类型构造 Execution
#### ERC-20 转账
```typescript
import { encodeFunctionData, parseUnits } from "viem";
const tokenAddress = grant.permission.data.tokenAddress;
const amount = parseUnits("1", 18);
const execution = {
target: tokenAddress,
value: 0n,
callData: encodeFunctionData({
abi: [
{
type: "function",
name: "transfer",
inputs: [
{ name: "to", type: "address" },
{ name: "amount", type: "uint256" },
],
outputs: [{ type: "bool" }],
stateMutability: "nonpayable",
},
],
functionName: "transfer",
args: [payeeAddress, amount],
}),
};
```
#### 原生币转账
```typescript
const execution = {
target: payeeAddress,
value: parseUnits("0.001", 18),
callData: "0x",
};
```
### 完整 Redeem 示例
使用 viem 构造 calldata 并由 Session Account 发送交易：
```typescript
import { createWalletClient, http, encodeFunctionData, parseUnits } from "viem";
import { privateKeyToAccount } from "viem/accounts";
const SINGLE_DEFAULT_MODE =
"0x0000000000000000000000000000000000000000000000000000000000000000";
const DELEGATION_MANAGER_ABI = [
{
type: "function",
name: "redeemDelegations",
inputs: [
{ name: "permissionContexts", type: "bytes[]" },
{ name: "modes", type: "bytes32[]" },
{ name: "executionCallDatas", type: "bytes[]" },
],
outputs: [],
stateMutability: "nonpayable",
},
];
function encodeSingleExecution(execution: {
target: `0x${string}`;
value: bigint;
callData: `0x${string}`;
}) {
const target = execution.target.slice(2).toLowerCase().padStart(40, "0");
const value = execution.value.toString(16).padStart(64, "0");
const data = execution.callData.slice(2);
return `0x${target}${value}${data}` as `0x${string}`;
}
async function redeemErc20Transfer(
grant: PermissionResponse,
payee: `0x${string}`,
humanAmount: string,
rpcUrl: string,
) {
const sessionAccount = privateKeyToAccount(
process.env.SESSION_PRIVATE_KEY as `0x${string}`,
);
if (sessionAccount.address.toLowerCase() !== grant.to.toLowerCase()) {
throw new Error("Session 地址与授权 to 不一致");
}
const decimals = 18; // 需要根据实际 ERC-20 合约读取 decimals
const amount = parseUnits(humanAmount, decimals);
const tokenAddress = grant.permission.data.tokenAddress as `0x${string}`;
const executionCallData = encodeSingleExecution({
target: tokenAddress,
value: 0n,
callData: encodeFunctionData({
abi: [
{
type: "function",
name: "transfer",
inputs: [{ type: "address" }, { type: "uint256" }],
outputs: [{ type: "bool" }],
stateMutability: "nonpayable",
},
],
functionName: "transfer",
args: [payee, amount],
}),
});
const data = encodeFunctionData({
abi: DELEGATION_MANAGER_ABI,
functionName: "redeemDelegations",
args: [[grant.context], [SINGLE_DEFAULT_MODE], [executionCallData]],
});
const chainId = parseInt(grant.chainId, 16);
const client = createWalletClient({
account: sessionAccount,
chain: {
id: chainId,
name: `Chain ${chainId}`,
nativeCurrency: { name: "Native", symbol: "Native", decimals: 18 },
rpcUrls: { default: { http: [rpcUrl] } },
},
transport: http(rpcUrl),
});
return client.sendTransaction({
to: grant.delegationManager,
value: 0n,
data,
});
}
```
### 执行前检查清单
| 检查项 | 说明 |
| ------------------ | -------------------------------- |
| `to` 地址匹配 | 签名者 = `grant.to` |
| 链 ID 一致 | 必要时 `wallet_switchEthereumChain` |
| 额度充足 | periodic/stream 规则 + 链上 enforcer |
| `context` 有效 | 未过期、未撤销 |
| `dependencies` 已部署 | factory 部署完成后再 redeem |