Hello fellows!
I'm actually running bitcoind server to receive and send transaction through my own software.
Transaction size of my spends are always near to 100kb/500kb, so how do I set a minimum/pseudo-fixed transaction fee in my bitcoin.conf/software? If you haven't figured out yet what I mean, I would always pay 0.0001 BTC for each spend cause they never exceed 1.000kb.
Hoping in a fast reply
I'm actually running bitcoind server to receive and send transaction through my own software.
Transaction size of my spends are always near to 100kb/500kb, so how do I set a minimum/pseudo-fixed transaction fee in my bitcoin.conf/software? If you haven't figured out yet what I mean, I would always pay 0.0001 BTC for each spend cause they never exceed 1.000kb.
Hoping in a fast reply
You can't, the reference implementation wallet always pays some-amount-per-1000-bytes-of-the-transaction.
The rules for the 0.10 release are:
+ By default, you always pay a fee (this is different from previous releases that would send transactions without a fee if they had high enough priority) (run with -sendfreetransactions=1 to get the old behavior of sending high-priority transactions without a fee)
+ By default, the fee-per-kilobyte is estimated based on recent transaction confirmation history.
To get close to what you want (pay a fixed fee per transaction), run with -paytxfee=0.whatever : that tells the wallet code to pay 0.whatever BTC per 1000 bytes. Most transactions are about 500 bytes big.
See here: http://core2.bitcoincore.org/smartfee/fee_graph.html ... for how high to make -paytxfee=0.whatever based on how long you're willing to wait for the first confirmation (that page graphs estimates from the latest&greatest fee estimation code from Alex Morcos that will hopefully be in the 0.11 Bitcoin Core release).
I'm now having full control of fees through:
- getbalance
- listunspent
- createrawtransactions
- signrawtransaction
- sendrawtransaction
Previous method was working fine but when change addresses (inputs) were too much I started spending more than 0.0001 BTC, complete chaos
However now's everything ok with new functions
So you are not using change addresses now? Or only a few specific change addresses? I'm no expert but I wonder if that would be totally safe? I guess maybe if anonymity isn't the goal...
My software needs to be as transparent as possible, that's the goal yes. Change address is always the same spent input
Testnet example: https://www.blocktrail.com/tBTC/address/mzkKmWG9Sj4duFDzHQMvwEvt1S8f3K56sm
