Send Transaction

Once the web application is connected to Blocto wallet, it can send transactions on behalf of the user, with the user's permission.

In order to send a transaction, the web application must:

Create an unsigned transaction or transactions.
Have it be signed by the user's Blocto wallet.
Send it with Blocto custom JSON-RPC.

For more information about the transactions on Solana, it is recommended to check out the solana-web3.js docs as well as the official Solana docs.

Plain Transaction

For plain transactions (no dApp-side signing involved), you can just create transaction with solana-web3.js and sign-and-send the transaction with signAndSendTransaction method.

const transaction = new solanaWeb3.Transaction();
...
const txHash = await bloctoSDK.solana.signAndSendTransaction(transaction);

const transaction = new solanaWeb3.Transaction();
...
bloctoSDK.solana.request({
  method: 'signAndSendTransaction',
  params: {
    message: transaction.serializeMessage().toString('hex')
  }
});

Partial Sign Transaction

For transactions involving dApp-side signing, first you need to convert the transaction to our wallet-compatible format by calling convertToProgramWalletTransaction, and sign the instructions with your keys, then sign-and-send the partial-signed transaction with our signAndSendTransaction method.

const transaction = new solanaWeb3.Transaction();
...
const converted = await bloctoSDK.solana.convertToProgramWalletTransaction(transaction);
const signers = [new solanaWeb3.PublicKey('yourpublickey')];
converted.partialSign(...signers);

const txHash = await bloctoSDK.solana.signAndSendTransaction(converted);

const transaction = new solanaWeb3.Transaction();
...
const convertedMessage = await bloctoSDK.solana.request({
  method: 'convertToProgramWalletTransaction',
  params: {
    message: transaction.serializeMessage().toString('hex')
  }
});
// convert message to solana Transaction type object
const converted = bloctoSDK.solana.toTransaction(convertedMessage);
const signers = [new solanaWeb3.PublicKey('yourpublickey')];
converted.partialSign(...signers);

const txHash = await bloctoSDK.solana.request({
  method: 'signAndSendTransaction',
  params: {
    signatures: await solanaSDK.solana.collectSignatures(converted),
    message: converted.serializeMessage().toString('hex')
  }
});

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Last updated 2 years ago

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