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交易

准备交易前，先连接 provider 并读取当前网络。这些示例适用于 Conflux Core Space。请替换省略的地址，并在调用 SDK 方法前初始化客户端。

了解如何在 Conflux 上发送交易。

发送交易


const txHash = await provider.request({
  method: 'cfx_sendTransaction',
  params: [{
    from: senderAddress,
    to: recipientAddress,
    value: '0xDE0B6B3A7640000', // 1 CFX in Drip (hex)
    gas: '0x5208', // 21000
  }]
})
 
console.log('Transaction hash:', txHash)

带 Gas 估算发送


// Estimate gas first
const gasEstimate = await provider.request({
  method: 'cfx_estimateGasAndCollateral',
  params: [{
    from: senderAddress,
    to: recipientAddress,
    value: '0xDE0B6B3A7640000',
  }]
})
 
// Send with estimated values
const txHash = await provider.request({
  method: 'cfx_sendTransaction',
  params: [{
    from: senderAddress,
    to: recipientAddress,
    value: '0xDE0B6B3A7640000',
    gas: gasEstimate.gasLimit,
    storageLimit: gasEstimate.storageCollateralized,
  }]
})

调用合约


const result = await provider.request({
  method: 'cfx_call',
  params: [{
    to: contractAddress,
    data: encodedFunctionCall,
  }, 'latest_state']
})
 
console.log('Result:', result)

与 js-conflux-sdk 配合使用

安装


npm install js-conflux-sdk

连接 Provider


import { Conflux } from 'js-conflux-sdk'
 
const conflux = new Conflux({
  url: 'https://main.confluxrpc.com',
  networkId: 1029,
})
 
// Use OneKey provider for signing
conflux.provider = provider

使用 SDK 发送交易


// Create and send transaction
const tx = conflux.cfx.sendTransaction({
  from: senderAddress,
  to: recipientAddress,
  value: Conflux.Drip.fromCFX(1), // 1 CFX
})
 
console.log('Transaction:', tx)
 
// Wait for confirmation
const receipt = await tx.executed()
console.log('Receipt:', receipt)

合约交互


const contract = conflux.Contract({
  abi: contractABI,
  address: contractAddress,
})
 
// Read
const result = await contract.someViewFunction().call()
 
// Write
const tx = contract.someWriteFunction(param1, param2).sendTransaction({
  from: senderAddress,
})
 
const receipt = await tx.executed()

错误处理


try {
  const accounts = await provider.request({
    method: 'cfx_requestAccounts'
  })
} catch (error) {
  if (error.code === 4001) {
    console.log('User rejected the request')
  } else if (error.code === -32603) {
    console.log('Internal error')
  } else {
    console.error('Error:', error.message)
  }
}