Transaction Lock & Proof

SecretLockTransaction and SecretProofTransaction

Secret Lock Transaction is used to create a new secret lock. For creating use NewSecretLockTransaction().

Following parameters required:

• mosaic - a mosaic that will be locked
• duration - how long mosaic will be locked
• secret - generated secret
• recipient - recipient of the mosaic

Secret Proof Transaction is used to create a new secret lock. For creating use NewSecretProofTransaction().

Following parameters required:

• hashType - type of hash
• proof - proof
• recipient - recipient of the mosaic

from xpxchain import models
from xpxchain import client
import os
import asyncio
 
ENDPOINT = '//localhost:3000'
NETWORK_TYPE = models.NetworkType.MIJIN_TEST
XPX = models.MosaicId(0x0dc67fbe1cad29e3) # XPX
DIVISIBILITY = 10**6
GENERATION_HASH = '7B631D803F912B00DC0CBED3014BBD17A302BA50B99D233B9C2D9533B842ABDF'
genesis_private_key = '28FCECEA252231D2C86E1BCF7DD541552BDBBEFBB09324758B3AC199B4AA7B78'
genesis = models.Account.create_from_private_key(genesis_private_key, NETWORK_TYPE)

alice = models.Account.generate_new_account(NETWORK_TYPE, entropy=lambda x: os.urandom(32))    
bob = models.Account.generate_new_account(NETWORK_TYPE, entropy=lambda x: os.urandom(32))

amount = 10000 * DIVISIBILITY

tx = models.TransferTransaction.create(
    deadline=models.Deadline.create(),
    recipient=alice.address,
    network_type=NETWORK_TYPE, 
    mosaics=[models.Mosaic(XPX, amount)]
)

signed_tx = tx.sign_with(genesis, GENERATION_HASH)

async def announce(tx):
    signer = models.PublicAccount.create_from_public_key(tx.signer, NETWORK_TYPE)
    
    async with client.Listener(f'{ENDPOINT}/ws', network_type=NETWORK_TYPE) as listener:
        await listener.confirmed(signer.address)
        await listener.status(signer.address)
        
        async with client.AsyncTransactionHTTP(ENDPOINT, network_type=NETWORK_TYPE) as http:
            await http.announce(tx)
        
        async for m in listener:
            if ((m.channel_name == 'status') and (m.message.hash == tx.hash.upper())):
                raise errors.TransactionError(m.message)
            elif ((m.channel_name == 'confirmedAdded') and (m.message.transaction_info.hash == tx.hash.upper())):
                return m.message

tx = asyncio.run(announce(signed_tx))

import binascii, hashlib
random_bytes = os.urandom(20)
h = hashlib.sha3_256(random_bytes)
secret = binascii.hexlify(h.digest()).decode('utf-8').upper()
proof = binascii.hexlify(random_bytes).decode('utf-8').upper()

tx = models.SecretLockTransaction.create(
    deadline=models.Deadline.create(),
    network_type=NETWORK_TYPE,
    mosaic=models.Mosaic(XPX, 1 * DIVISIBILITY),
    duration=60,
    hash_type=models.HashType.SHA3_256,
    secret=secret,
    recipient=bob.address,
)

signed_tx = tx.sign_with(alice, GENERATION_HASH)
tx = asyncio.run(announce(signed_tx))

tx = models.SecretProofTransaction.create(
    deadline=models.Deadline.create(),
    network_type=NETWORK_TYPE,
    hash_type=models.HashType.SHA3_256,
    secret=secret,
    proof=proof,
    recipient=bob.address,
)

signed_tx = tx.sign_with(alice, GENERATION_HASH)
tx = asyncio.run(announce(signed_tx))
print(tx)
```python