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dApp 接入

交易

了解如何在 TRON 上签署和发送交易。


签署交易

签署交易但不广播:

// 构建交易 const tx = await tronWeb.transactionBuilder.sendTrx( 'TRecipientAddress...', tronWeb.toSun(10), tronWeb.defaultAddress.base58 ) // 通过 provider 签名 const signedTx = await provider.sign(tx) console.log('已签名的交易:', signedTx) // 手动广播 const result = await tronWeb.trx.sendRawTransaction(signedTx)

智能合约交互

const contract = await tronWeb.contract().at(contractAddress) // 读取(视图函数) const result = await contract.someViewFunction().call() // 写入(需要签名) const tx = await contract.someWriteFunction(param1, param2).send({ feeLimit: 100_000_000, // 100 TRX callValue: 0, })

触发智能合约

const tx = await tronWeb.transactionBuilder.triggerSmartContract( contractAddress, 'transfer(address,uint256)', { feeLimit: 100_000_000 }, [ { type: 'address', value: recipientAddress }, { type: 'uint256', value: amount } ], tronWeb.defaultAddress.base58 ) const signedTx = await provider.sign(tx.transaction) const result = await tronWeb.trx.sendRawTransaction(signedTx)

使用 SunWeb

用于 DappChain(侧链)操作:

const sunWeb = window.sunWeb // 主链到侧链 await sunWeb.depositTrx( amount, depositFee, feeLimit ) // 侧链到主链 await sunWeb.withdrawTrx( amount, withdrawFee, feeLimit )
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