Create Raw Transaction

This guide assumes you have raptoreumd running and raptoreum-cli accessible.

Basics

To create a RAW transaction, you need to familiarize yourself with the UTOX system.

Every transaction you receive is ultimately UTOX. For a RAW transaction, we search for these UTOX and use them for the transaction.

However, since one or more UTOX will not exactly match your sending amount, we always need a change address to send the remaining UTOX back to you.

Start & Sync Daemon

Start your raptoreum Daemon:
```
./raptoreumd
```
alternativ (Start in Background):
```
./raptoreumd --daemon
```
Wait until everything is synchronized. Check the status with:
```
./raptoreum-cli getblockcount
```
If the output block is identical to the block in the Raptoreum Explorer, your daemon is synchronized.

Note: If you want to stop the daemon later, do so with ./raptoreum-cli stop.

Assemble transaction

Identify the Unspent Transaction Output (UTXO) First, you need to find the funds you want to spend.

raptoreum-cli listunspent

Look for a specific entry and note down the txid and the vout (index). Also, note the amount.

For example: You want to transfer 1000 RTM. Then you need one or more UTOX. The sum of your selected UTOX must be greater than or equal to the amount you want to send.

{
"txid": "89e2xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx73fe",
"vout": 0,
"address": "RS8mxxxxxxxxxxxxxxxxxnRg3",
"label": "TESTING",
"scriptPubKey": "76a914b8e2717807ecfbcc6254e479a0d2812e4077d40188ac",
"amount": 942.00000000,
"confirmations": 122441,
"spendable": true,
"future": false,
"futureSpendable": true,
"solvable": true,
"desc": "pkh([b8e27178]020ed7605ce38097195d4d5e479469acdaa49cee221abf746f310d96f6870adbea)#csjfu7f6",
"safe": true,
"coinjoin_rounds": -2
},
{
"txid": "3cd07ff7xxxxxxxxxxxxxxxxxxxxxxxxxxxxxd19736fc271fc",
"vout": 0,
"address": "RS8mxxxxxxxxxxxxxxxxxnRg3",
"label": "TESTING",
"scriptPubKey": "76a914b8e2717807ecfbcc6254e479a0d2812e4077d40188ac",
"amount": 932.00000000,
"confirmations": 4306,
"spendable": true,
"future": false,
"futureSpendable": true,
"solvable": true,
"desc": "pkh([b8e27178]020ed7605ce38097195d4d5e479469acdaa49cee221abf746f310d96f6870adbea)#csjfu7f6",
"safe": true,
"coinjoin_rounds": -2
},

Since you want to ship 1000 RTM, you need both. The first UTXO has an amount of 942.00000000 RTM and the second has 932.00000000 RTM. Since 942 is less than 1000, both are needed.

Note down/copy the txid of the UTOX you want to use for the transaction, and also the vout number. Example:

txid1 = 89e2xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx73fe
txid1 vout: 0

txid2 = 3cd07ff7xxxxxxxxxxxxxxxxxxxxxxxxxxxxxd19736fc271fc
txid vout: 0

Calculyting Fee

Calculating Transaction Fees First, we read the fees from the last 100 transactions:
```
./raptoreum-cli estimatesmartfee 100
```
EXPAMPLE OUTPUT:
```
{
"feerate": 0.00001211,
"blocks": 100
}
```
The fee per kilobyte in this example is 0.00001211RTM
Calculate the change fees

Example: RTM Input - RTM Output - Averrrage Fee Example: (942 RTM + 932 RTM) - 1000RTM - 0.00001211RTM = 873.99998789RTM
Create an Initial Raw Transaction (Skeleton)

To get a base for your calculation, create a transaction with all inputs and outputs. You can use placeholder amounts for the change at this stage.
```
./raptoreum-cli createrawtransaction '[{"txid":"TXID1","vout":0},{"txid":"TXID2","vout":0}]' '{"DEST_ADDR":1000, "CHANGE_ADDR":873.99998789}'
```
This returns a hex string.
Sign and Calculate Exact Size (The "Script" Logic)
1. Since the signature adds data, the byte size changes after signing. Your script follows these steps:
  
  Sign the placeholder hex:
```
./raptoreum-cli signrawtransactionwithwallet "INITIAL_HEX"
```
2. Get the exact size Take the signed hex and decode it to see the vsize (virtual size) or simply measure the hex length (bytes=length of hex/2).
```
./raptoreum-cli decoderawtransaction "SIGNED_HEX"
```
Look for the "vsize" or "size" field.
1. Recalculate Fee:
```
Exact Fee=(vsize/1000)×feerate
```

Create Transaction

Re-create the Transaction (Final Amounts)

Now that you have the Exact Fee, recalculate your change:

Final Change=Total Inputs−Spend Amount−Exact Fee

Create the raw transaction one last time with the corrected change amount:

./raptoreum-cli createrawtransaction '[{"txid":"TXID1","vout":0}, ...]' '{"DEST_ADDR":1000, "CHANGE_ADDR":FINAL_CHANGE}'

Final Signing and Broadcasting

Sign again:

./raptoreum-cli signrawtransactionwithwallet "FINAL_HEX"

Broadcast:

./raptoreum-cli sendrawtransaction "FINAL_SIGNED_HEX"