Calculating witness rewards
Every time a witness produces a block, steem blockchain rewards the witness with a producer_reward operation in the blockchain. This is a virtul operation - don't exactly bounded to a transaction, therefore it doesn't have a transaction ID.
It is possible to go through the account history and calculate how much a witness made by being a witness. :)
Some of the properties of a producer_reward operation:
{
'producer': 'emrebeyler',
'vesting_shares': '1980.464769 VESTS',
'block': 20633599,
'timestamp': '2018-03-13T07:48:27',
}
Main Flow of the script
- Go through the account history
- Filter "producer_reward" operations
- Sum all rewarded VESTS and convert to Steam Power
Script
from steem import Steem
from steem.account import Account
from steem.amount import Amount
from steem.converter import Converter
import logging
logger = logging.getLogger('producer rewards')
logger.setLevel(logging.INFO)
logging.basicConfig()
def calculate_producer_rewards(steemd_instance, witness_account):
account = Account(witness_account,steemd_instance=steemd_instance)
total_vests = 0
for producer_reward in account.history_reverse(filter_by=["producer_reward"]):
total_vests += Amount(producer_reward["vesting_shares"]).amount
converter = Converter(steemd_instance=s)
total_sp = converter.vests_to_sp(total_vests)
return total_vests, total_sp
if __name__ == '__main__':
s = Steem(nodes=["https://api.steemit.com"])
witness_account = 'emrebeyler'
vests, sp = calculate_producer_rewards(s, witness_account)
print("Account: %s, Total Vests: %s, Total SP: %s" % (
witness_account, round(vests, 2), round(sp, 2)))
See the script nicely formatted at Github Gists.
Notes
This script scans all operation history. Execution time may take forever for old witnesses.
Conversion to the SP is done with the current VESTS to SP rate. This is a dynamic variable and may differ from time to time.
Requirements
You need to have steem-python library installed in your local environment.
Have fun.
This is a very useful script for witnesses!
Cool little script. Might be useful for a dashboard or site or something.
That's actually a good idea - I will do a leaderboard for the top100 witnesses :)
İyiymiş bu sistem teşekkürler 😊
Great informative update news...thank you so much...i like it...
I don't think you want to have steam python tips in your title ;)
fixed. thanks!
You're welcome. I'm glad I could help.
informasi sangat beemanfaat, kamu telah melakukan pekerjaan yang mulia, terimakasih telah berbagi..good luck