BatchRequest() is a single transaction or many?

Question

web3.BatchRequest(); does it produce a single transaction with several functions of the (possibly different) contracts or not?

  var batch = new web3.BatchRequest();
  batch.add(web3.eth.sendSignedTransaction.request(raw3, (err,tx3Hash) =>{
  console.log('err:', err, 'tx3Hash:', tx3Hash)  
  }))
  batch.add(web3.eth.sendSignedTransaction.request(raw4, (err,tx4Hash) =>{
  console.log('err:', err, 'tx4Hash:', tx4Hash)  
  }))
  batch.execute()

this code gives me two different transactions, how i can have them in one?

Answer 1

BatchRequest batches only JSON-RPC calls for your Ethereum node API. Transactions are independent and separate concern of those. BatchRequest only saves you some modest amount of HTTP traffic.