The Python Function to Retrieve the Producer Reward for Witness

As you know, the witness is rewarded for produce a block. The TOP 20 gets to produce the blocks more frequently than the backup witnesses, but the reward for each block is different: currently 484 VESTS for TOP 20 while around 2425 VESTS for others on the steem blockchain.

How do we get the reward given a block number? Unfortunately, it is not through the `get_block` api. Instead, we need to use `get_ops_in_block` which is provided by `account_plugin_history`

curl -s --data '{"jsonrpc":"2.0", "method":"condenser_api.get_ops_in_block", "params":[43880000,true], "id":1}' https://api.steemit.com

This returns like:

{"jsonrpc":"2.0","result":[{"trx_id":"0000000000000000000000000000000000000000","block":43880000,"trx_in_block":4294967295,"op_in_trx":0,"virtual_op":1,"timestamp":"2020-
06-01T17:49:18","op":["producer_reward",{"producer":"hinomaru-jp","vesting_shares":"481.663694 VESTS"}]}],"id":1}

Then, we can wrap it up in a Python function (please note that we need to scan the transactions array and look for the `producer_reward` ops.

def getReward(block):
  data={"jsonrpc":"2.0", "method":"condenser_api.get_ops_in_block", "params":[block, True], "id":1}
  result = requests.post(url="https://api.steemit.com", json = data)
  jsonData = result.json()
  for tx in jsonData:
    if tx['op'][0] == 'producer_reward':
      return tx['op'][1]['vesting_shares']
  return None

–EOF (The Ultimate Computing & Technology Blog) —