Ethereum: createrawtransaction, multiple outputs, single input?

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Multiple Bitcoin Fraction to one address

Introduction

In this article, we will explore how to create a Createrawtransationthat allows you to connect multiple fractions of bitcoin from different addresses to one address.



Background

TheCreatertransationfunction is used to build a transaction in the Bitcoin Standard. Various parameters are required, including entry addresses, output addresses, fees and other options. In order to achieve our goal, we will change the function ofCreaterawtransationto support the merger of multiple Bitcoin fractions from different addresses.



 Modified Createrawtransation function 



The modified function of Createrawtransation is as follows:

#include

// function to connect multiple faction of bitcoin into an individual output address.

Void Mergefractions (Const Struct Bitcoin :: Script & Input,

Const Struct Bitcoin :: Script* Exits [],

size_t num_outputs)

{

// Calculate the total amount received in a combined transaction

Long amount = 0;

for (size_t i = 0; i

quantity += exit [i]-> getamount ();

Iche

// Create a new script

Struct script New_script;

New_script.vp = nullptr;

// Create an input with Bitcoin fractions from each address

for (size_t i = 0; i

Const Struct Bitcoin :: Script and Fraction = Exits [I];

New_script.vp-> Addfraction (fraction);

Iche

// Set the amount to be sent to the transaction

New_script.amount = amount;

// Set the input address for a new script

New_script.input_address = 0;

// Create and sign a new transaction using a public keyboard

struct bitcoin :: transaction* tx = bitcoin_new_transation (& new_script);

If (! tx) {

error (“failed to create a new transaction”);

return;

Iche

// Set the transaction entry (use one address)

Const Struct Bitcoin :: Scrip & Input = Get_input_address (0, 1);

Bitcoin_input_set TX, TX2 (tx, input);

// Sign the transaction using a public key

if (! Bitcoin_sign (tx, null, 1)) {

Error (“failed to sign a transaction”);

return;

Iche

// Print new transaction data

print_transation_details (TX);

Iche



Explanation

This modified function ofmergefractionstakes a scratch with multiple bitcoin fractions and a series of scripts representing every fraction. He then creates a new script that combines these fractions, sets its amount that will be sent and signed by a public keeper of the wallet.



To use this function, you should:


Make a series of scripts that represent each bitcoin share from different addresses.



Go to the first input address for a new transaction (eg 0).


3

 Example uses the case

Suppose you own two separate Bitcoin wallets,Wallet1I Wallet2 ‘, with addressesAddress1 IAddress2. You want to connect funds with both wallets into a new wallet address Address3.

Create a series of scripts that represent every share of bitcoin:

Const Struct Bitcoin :: Script* Wallet1_fractions [] = {

…,

{New script (), 0},

{New script (), 1}

};

Then callmergefractionswith the first input address for a new transaction (eg, Address1):

Mergefractions (Wallet1_fractions [0], wallet1_fraction + 1, sizeof (Wallet1_fractions) / Sizeof (Wallet1_fracles [0]));

This will connect the funds with both wallets into one output addressAddress3`.

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