How to reduce the bitcoin transaction fee in cert-issuer from 60000 satoshis to 6000

revathy · November 23, 2018, 7:53am

We would like to make it 6000 satoshis
We tried adding tx_fee = 0.00006 in the conf.ini of cert-issuer. But it didn’t work
Any suggestions?

aronning · November 26, 2018, 2:40pm

Looks like it takes the max of recommended fee and satoshis per byte * size.

github.com

blockchain-certificates/cert-issuer/blob/815e2aed87c28ce209136533621225a754be32ea/cert_issuer/blockchain_handlers/bitcoin/tx_utils.py#L138


:param num_inputs:
:param num_outputs:
:return:
"""
tx_fee = calculate_tx_fee(tx_cost_constants, num_inputs, num_outputs)
coin_per_output = tx_cost_constants.get_minimum_output_coin()
total = coin_per_output * num_outputs + tx_fee
return total




def calculate_tx_fee(tx_cost_constants, num_inputs, num_outputs):
"""
The course grained (hard-coded value) of something like 0.0001 BTC works great for standard transactions
(one input, one output). However, it will cause a lag in more complex or large transactions. So we calculate the
raw tx fee, then take the max of the default fee and the refined cost to ensure prompt processing.


The transaction fee is:
    fee = satoshi_per_byte * tx_size
:param tx_cost_constants:
:param num_inputs:
:param num_outputs:

stuartf · December 7, 2018, 6:30pm

So to simplify this to what goes in your conf.ini:

tx_fee=.00006
satoshi_per_byte=25

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How to reduce the bitcoin transaction fee in cert-issuer from 60000 satoshis to 6000

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