lbry-sdk/lbrynet/daemon/json_response_encoder.py

81 lines
2.8 KiB
Python

from decimal import Decimal
from binascii import hexlify
from datetime import datetime
from json import JSONEncoder
from lbrynet.wallet.transaction import Transaction, Output
from lbrynet.wallet.dewies import dewies_to_lbc
class JSONResponseEncoder(JSONEncoder):
def __init__(self, *args, ledger, **kwargs):
super().__init__(*args, **kwargs)
self.ledger = ledger
def default(self, obj): # pylint: disable=method-hidden
if isinstance(obj, Transaction):
return self.encode_transaction(obj)
if isinstance(obj, Output):
return self.encode_output(obj)
if isinstance(obj, datetime):
return obj.strftime("%Y%m%dT%H:%M:%S")
if isinstance(obj, Decimal):
return float(obj)
if isinstance(obj, bytes):
return obj.decode()
return super().default(obj)
def encode_transaction(self, tx):
return {
'txid': tx.id,
'height': tx.height,
'inputs': [self.encode_input(txo) for txo in tx.inputs],
'outputs': [self.encode_output(txo) for txo in tx.outputs],
'total_input': dewies_to_lbc(tx.input_sum),
'total_output': dewies_to_lbc(tx.input_sum - tx.fee),
'total_fee': dewies_to_lbc(tx.fee),
'hex': hexlify(tx.raw).decode(),
}
def encode_output(self, txo):
output = {
'txid': txo.tx_ref.id,
'nout': txo.position,
'amount': dewies_to_lbc(txo.amount),
'address': txo.get_address(self.ledger),
}
if txo.is_change is not None:
output['is_change'] = txo.is_change
if txo.is_my_account is not None:
output['is_mine'] = txo.is_my_account
if txo.script.is_claim_involved:
output.update({
'name': txo.claim_name,
'claim_id': txo.claim_id,
'permanent_url': txo.permanent_url,
'is_claim': txo.script.is_claim_name,
'is_support': txo.script.is_support_claim,
'is_update': txo.script.is_update_claim
})
if txo.script.is_claim_name or txo.script.is_update_claim:
output['value'] = txo.claim.claim_dict
if txo.claim_name.startswith('@'):
output['has_signature'] = txo.has_signature
if txo.script.is_claim_name:
output['category'] = 'claim'
elif txo.script.is_update_claim:
output['category'] = 'update'
elif txo.script.is_support_claim:
output['category'] = 'support'
return output
def encode_input(self, txi):
return self.encode_output(txi.txo_ref.txo) if txi.txo_ref.txo is not None else {
'txid': txi.txo_ref.tx_ref.id,
'nout': txi.txo_ref.position
}