锚点：如何要求Nodejs后端在不使用血清的Multisig的情况下从前端共同签名交易？

发布于 2025-02-12 02:59:00 字数 347 浏览 0 评论 0原文

理想情况下，我希望我的nodejs后端（可以确保按键）与Frontend应用程序共同签名交易（假设用户将使用他 /她的Solana Wallet签署交易）。后端的Pubkey也将作为锚定计划的签名帐户包括在内。

我看不到Anchor这样做的任何教程，希望这是有道理的。我当时认为前端将称为后端API传递序列化参数，后端将在该参数上签名，并将用其公共密钥将签名返回前端。

我不知道：

用于签名交易的正确锚 /索拉纳Web3是什么，
我该如何将（后端的）返回签名添加到

我最初不想使用Multisig使用此方法的交易中，因为它只会胜过事情。在提交交易之前只需要从后端进行一些确认即可。

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一直在等你来 2025-02-19 02:59:00

您可能想做这样的事情（后端）：

// create the transaction, with user's public key as the feePayer

// Sign the transaction as the backend
// We must partial sign because the transaction still requires the user signature
transaction.partialSign(backendKeypair)

// Serialize the transaction and convert to base64 to return it
const serializedTransaction = transaction.serialize({
  // We will need the buyer to sign this transaction after it's returned to them
 requireAllSignatures: false
})
const base64 = serializedTransaction.toString('base64')

// return base64 to the frontend

然后从前端开始：

// make sure you're passing user's public key in this request
const response = await fetch(`/your-api/`, {
  method: 'POST',
  ...
})

// assuming your API returns JSON
const json = await response.json()

// Deserialize the transaction from the response
const transaction = Transaction.from(Buffer.from(json.transaction, 'base64'));
    
// have the user sign transaction using their connected wallet

You probably want to do something like this (backend):

// create the transaction, with user's public key as the feePayer

// Sign the transaction as the backend
// We must partial sign because the transaction still requires the user signature
transaction.partialSign(backendKeypair)

// Serialize the transaction and convert to base64 to return it
const serializedTransaction = transaction.serialize({
  // We will need the buyer to sign this transaction after it's returned to them
 requireAllSignatures: false
})
const base64 = serializedTransaction.toString('base64')

// return base64 to the frontend

Then from the frontend:

// make sure you're passing user's public key in this request
const response = await fetch(`/your-api/`, {
  method: 'POST',
  ...
})

// assuming your API returns JSON
const json = await response.json()

// Deserialize the transaction from the response
const transaction = Transaction.from(Buffer.from(json.transaction, 'base64'));
    
// have the user sign transaction using their connected wallet

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