提款/提幣回調 (Payout callback)

從您所建立的其中一個錢包 (地址) 支付後所收到的資料

要接收回調，請確保您在 AkashicPay.com 上註冊了您的 URL。您可以接收 「待定」、「已確認」 和 「失敗」 狀態的交易回調。我們建議您設定所有三種狀態，不過如果需要的話，您可以跳過「待定」狀態。只有狀態為 「已確認」 或 「失敗」 的交易才是最終交易。

注意：如果回調的回應狀態代碼 (status code) >= 400，則回調最多會重試 15 次，延遲時間會增加，第一次嘗試後最多可延遲 10 小時左右。

注意： l2Txnhash（「L2-hash」）應始終用作交易的唯一識別碼 (identifier)。這是 AkashicChain 上任何交易的唯一交易哈希 (transaction-hash)。它存在於已確認的存款和待定/已確認的提款中。這對於第二層交易尤其重要，因為第二層交易沒有第一層哈希值 (txHash)

範例

待提款/提幣 (L1Transaction)

 {
  "fromAddress": "TTVkK6hGoAFhALG9NTkUDHjcFFXKmWcScU", // sending wallet/account of transaction
  "toAddress": "TQH8ygbS8BAnzSQ9uxR9vXHJYMQVRvbgPg", // receiving wallet/account of transaction
  "layer": "L1Transaction", // 'L1Transaction' or 'L2Transaction'
  "initiatedAt": "2024-08-19T10:02:54.000Z", // ISO8601 format
  "amount": "1.000000",  // Amount sent
  "coinSymbol": "TRX", // NetworkSymbol, e.g. 'ETH' or 'TRX'
  "status": "Confirmed", // TransactionStatus. 'Pending', 'Confirmed', or 'Failed'
  "txHash": "28a9880ad2ef3b7be1c40763128ec9630ab74e4749a3c81037c3501e4209bfcc", // Network's hash if L1. Not present for L2
  "feesEstimate": "6.114654", // Gas fee estimated by Akashic. Not present for L2
  "l2TxnHash": "ASe7eb1cb8193787040fcffa02a224a6ced7415ff2205343c0ab661e898e8d6eef", // Akashic Transaction Hash. For both L1 and L2 
  "senderIdentity": "ASbb8efead2d5ff2f618a85895bac8e8ac1bae236d4d730bf113400b7e6f108ca5", // Akashic Address of sender
  "tokenSymbol": "USDT", // TokenSymbol. Present only if token-transaction
  "internalFee": {
    "withdraw": "0.100000"
  }, // Akashic Fee { deposit?: string, withdraw?: string}
   "identifier": "user123", // User-identifier
   "feeIsDelegated": false, // Whether L1 gas fees were paid using token instead of native coin
   "directResolution": false // true if the transaction was never registered in the "Pending" state
}

提款/提幣 (L1Transaction)

  {
  "fromAddress": "TTVkK6hGoAFhALG9NTkUDHjcFFXKmWcScU", // sending wallet/account of transaction
  "toAddress": "TQH8ygbS8BAnzSQ9uxR9vXHJYMQVRvbgPg", // receiving wallet/account of transaction
  "layer": "L1Transaction", // 'L1Transaction' or 'L2Transaction'
  "initiatedAt": "2024-08-19T10:02:54.000Z", // ISO8601 format
  "confirmedAt": "2024-08-19T10:04:02.000Z", // Only present if status is 'Confirmed' or 'Failed'
  "amount": "1.000000",  // Amount sent
  "coinSymbol": "TRX", // NetworkSymbol, e.g. 'ETH' or 'TRX'
  "status": "Confirmed", // TransactionStatus. 'Pending', 'Confirmed', or 'Failed'
  "txHash": "28a9880ad2ef3b7be1c40763128ec9630ab74e4749a3c81037c3501e4209bfcc", // Network's hash if L1. Not present for L2
  "feesEstimate": "6.114654", // Gas fee estimated by Akashic. Not present for L2
  "feesPaid": "5.822220, // Gas Fee paid on network. Not present for L2
  "l2TxnHash": "ASe7eb1cb8193787040fcffa02a224a6ced7415ff2205343c0ab661e898e8d6eef", // Akashic Transaction Hash. For both L1 and L2 
  "senderIdentity": "ASbb8efead2d5ff2f618a85895bac8e8ac1bae236d4d730bf113400b7e6f108ca5", // Akashic Address of sender
  "tokenSymbol": "USDT", // TokenSymbol. Present only if token-transaction
  "internalFee": {
    "withdraw": "0.100000"
  }, // Akashic Fee { deposit?: string, withdraw?: string}
   "identifier": "user123", // User-identifier
   "feeIsDelegated": false, // Whether L1 gas fees were paid using token instead of native coin
   "directResolution": false // true if the transaction was never registered in the "Pending" state
}

對於待處理交易，feesPaid 和 confirmedAt 尚未知道，因此不存在。

關於提款費用的說明

提款時，有幾種不同的費用。這些是：

• Akashic 費用 (回調中的 internalFee.withdraw)，總是與交易貨幣相同。例如，ETH 轉帳用 ETH，USDT 轉帳用 USDT，等等。除非發生「費用代令」，否則通常為 0，請參閱下文。

• 礦工費 (回調中的 feesPaid)，總是以原生幣計算 (例如 ETH 代表 ERC20 USDT 轉帳，TRX 代表 TRC20 USDT 轉帳等)。由 L1 網路收取 (以太坊 (Ethereum)、波場 (Tron) 等)
• 「費用代付」。Akashic 系統讓您用代幣而非原生幣來支付上述的原生費用，以簡化問題。如果這樣做，feeIsDelegated 將會在回調中為 true。所有使用 SDK 完成的提款都應該是 「代付」 的，而從 AkashicLink 啟動的提款預設不會是 「代付」的。「代付」 費用所需的額外代幣金額在 internalFee.withdraw 中。

利用這一點，我們可以計算使用者花費的總金額（假設上圖所示的回調資料在 txCallback 中）：

// Token transaction (USDT)
if (txCallback.tokenSymbol) {
    userTokenSpent = txCallback.amount + txCallback.internalFee.withdraw;
    // If fee is not delegated, gas fees are paid in native coin
    if (!feeIsDelegated) {
        userNativeCoinSpent = txCallback.feesPaid;
    }
} else {
// Coin transaction (ETH, TRX)
    userNativeCoinSpent = txCallback.amount + txCallback.internalFee.withdraw 
        + txCallback.feesPaid;
}

請注意，以上是偽碼。您可能需要額外注意處理潛在的未定義/空值（如 internalFee），並根據您所選程式語言的一般慣例，安全正確地解析數字。

提款/提幣 (L2Transaction)

如果使用者要傳送資產給 Akashic 系統中的其他使用者，則會在 AkashicChain 中執行，這是我們的第 2 層區塊鏈，可降低第一層的礦工費和成本。

{
  "initiatedAt": "2024-08-19T10:03:58.649Z",
  "confirmedAt": "2024-08-19T10:03:58.649Z",
  "fromAddress": "AS3ce733d2af1ee530e0e85bd7de45c59626b28f95ac2d8e83a0685a70aac9b764", // Same as senderIdentity
  "toAddress": "AS188689e48494c8a452683587138f209d673aada204cb23393140e7f40280e0c5", // Same as receiverIdentity
  "coinSymbol": "TRX-SHASTA",
  "status": "Confirmed", // "Confirmed" or "Failed"
  "layer": "L2Transaction", // Could be "L2Transaction" here
  "amount": "10.000000",
  "internalFee": {
    "withdraw": "0.100000" // Akashic-fee, not present if Failed
  },
  "l2TxnHash": "ASe7eb1cb8193787040fcffa02a224a6ced7415ff2205343c0ab661e898e8d6eef", // AkashicChain txHash
  "receiverIdentity": "AS188689e48494c8a452683587138f209d673aada204cb23393140e7f40280e0c5", // Akashic-address of sender
  "tokenSymbol": "USDT" // Only here if a token-transaction,
  "identifier": "user123",
  "senderIdentity": "AS3ce733d2af1ee530e0e85bd7de45c59626b28f95ac2d8e83a0685a70aac9b764" // Alashic-address of receiver
}