如何检查帐户是否选择直接转帐？

Question

在Aptos上，发送令牌的主要方式分为两个阶段，一个由发送方提供，然后由收件人接受。但是，如果用户选择允许直接传输，则发送方只需在单个事务中向接收方发送NFT。如何检查用户是否选择了直接传输？

Answer 1

您可以通过查看帐户上的0x3::token::TokenStore资源来判断帐户是否选择了直接转账。例如，使用curl：

curl https://fullnode.mainnet.aptoslabs.com/v1/accounts/0x232098630cfad4734812fa37dc18d9b8d59242feabe49259e26318d468a99584/resource/0x3::token::TokenStore

上面的卷曲意思是“为我获取帐户上的0x3::token::TokenStore资源0x232098630cfad4734812fa37dc18d9b8d59242feabe49259e26318d468a99584。

输出(通过jq运行)：

{
  "type": "0x3::token::TokenStore",
  "data": {
    "burn_events": {
      "counter": "0",
      "guid": {
        "id": {
          "addr": "0x232098630cfad4734812fa37dc18d9b8d59242feabe49259e26318d468a99584",
          "creation_num": "6"
        }
      }
    },
    "deposit_events": {
      "counter": "6",
      "guid": {
        "id": {
          "addr": "0x232098630cfad4734812fa37dc18d9b8d59242feabe49259e26318d468a99584",
          "creation_num": "4"
        }
      }
    },
    "direct_transfer": true,
    "mutate_token_property_events": {
      "counter": "1",
      "guid": {
        "id": {
          "addr": "0x232098630cfad4734812fa37dc18d9b8d59242feabe49259e26318d468a99584",
          "creation_num": "7"
        }
      }
    },
    "tokens": {
      "handle": "0x91744f237fa81aedf45199a8c2bd568e7e329e48e02ae82786632fd0ebd3ad01"
    },
    "withdraw_events": {
      "counter": "0",
      "guid": {
        "id": {
          "addr": "0x232098630cfad4734812fa37dc18d9b8d59242feabe49259e26318d468a99584",
          "creation_num": "5"
        }
      }
    }
  }
}

如果direct_transfer是真的，那么他们选择了直接转帐。

使用TS SDK，它看起来如下所示：

const client = new AptosClient(NODE_URL);

const resource = await client.getAccountResource(
    accountAddress,
    "0x3::token::TokenStore",
);

const hasOptedIn = (resource.data as any)["direct_transfer"]

如果在尝试检索0x3::token::TokenStore时获得404，这也意味着它们没有选择直接传输，因为它们从未与令牌交互过。