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Transactions

Connect the provider and read its network before preparing transactions. These examples are for Conflux Core Space. Replace abbreviated addresses and initialize any SDK client before using its methods.

Learn how to send transactions on Conflux.

Send Transaction


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)

Send with Gas Estimation


// 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,
  }]
})

Call Contract


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

Using with js-conflux-sdk

Setup


npm install js-conflux-sdk

Connect 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

Send Transaction with SDK


// 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)

Contract Interaction


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()

Error Handling


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)
  }
}