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xrpl-dev-portal/_code-samples/escrow/py/send_conditional_escrow.py

75 lines
2.9 KiB
Python

import json
from datetime import datetime, timedelta, UTC
from os import urandom
from cryptoconditions import PreimageSha256
from xrpl.clients import JsonRpcClient
from xrpl.models import EscrowCreate, EscrowFinish
from xrpl.transaction import submit_and_wait
from xrpl.utils import datetime_to_ripple_time
from xrpl.wallet import generate_faucet_wallet
# Set up client and get a wallet
client = JsonRpcClient("https://s.altnet.rippletest.net:51234")
print("Funding new wallet from faucet...")
wallet = generate_faucet_wallet(client, debug=True)
destination_address = "rPT1Sjq2YGrBMTttX4GZHjKu9dyfzbpAYe" # Testnet faucet
# Alternative: Get another account to send the escrow to. Use this if you get
# a tecDIR_FULL error trying to create escrows to the Testnet faucet.
# destination_address = generate_faucet_wallet(client, debug=True).address
# Create the crypto-condition for release -----------------------------------
preimage = urandom(32)
fulfillment = PreimageSha256(preimage=preimage)
condition_hex = fulfillment.condition_binary.hex().upper()
fulfillment_hex = fulfillment.serialize_binary().hex().upper()
print("Condition:", condition_hex)
print("Fulfillment:", fulfillment_hex)
# Set the escrow expiration -------------------------------------------------
cancel_delay = 300
cancel_after = datetime.now(tz=UTC) + timedelta(seconds=cancel_delay)
print("This escrow will expire after", cancel_after)
cancel_after_rippletime = datetime_to_ripple_time(cancel_after)
# Send EscrowCreate transaction ---------------------------------------------
escrow_create = EscrowCreate(
account=wallet.address,
destination=destination_address,
amount="123456", # drops of XRP
condition=condition_hex,
cancel_after=cancel_after_rippletime
)
print("Signing and submitting the EscrowCreate transaction.")
response = submit_and_wait(escrow_create, client, wallet, autofill=True)
print(json.dumps(response.result, indent=2))
# Check result of submitting ------------------------------------------------
result_code = response.result["meta"]["TransactionResult"]
if result_code != "tesSUCCESS":
print(f"EscrowCreate failed with result code {result_code}")
exit(1)
# Save the sequence number so you can identify the escrow later
escrow_seq = response.result["tx_json"]["Sequence"]
# Send the EscrowFinish transaction -----------------------------------------
escrow_finish = EscrowFinish(
account=wallet.address,
owner=wallet.address,
offer_sequence=escrow_seq,
condition=condition_hex,
fulfillment=fulfillment_hex
)
print("Signing and submitting the EscrowFinish transaction.")
response2 = submit_and_wait(escrow_finish, client, wallet, autofill=True)
print(json.dumps(response2.result, indent=2))
result_code = response2.result["meta"]["TransactionResult"]
if result_code != "tesSUCCESS":
print(f"EscrowFinish failed with result code {result_code}")
exit(1)
print("Escrow finished successfully.")