This library contains the various Chain Contexts to use with the PyCardano library as well as a few helper functions for working with and building certain types of transactions.
from pccontext import BlockFrostChainContext, Network
chain_context = BlockFrostChainContext(
project_id="your_project_id",
network=Network.MAINNET,
)from pccontext import CardanoCliChainContext, Network
from pathlib import Path
chain_context = CardanoCliChainContext(
binary=Path("cardano-cli"),
socket=Path("node.socket"),
config_file=Path("config.json"),
network=Network.MAINNET,
)from pccontext import KoiosChainContext
chain_context = KoiosChainContext(api_key="api_key")from pccontext import OgmiosChainContext
chain_context = OgmiosChainContext(host="localhost", port=1337)from pccontext import OgmiosChainContext, KupoChainContextExtension
ogmios_chain_context = OgmiosChainContext(host="localhost", port=1337)
chain_context = KupoChainContextExtension(wrapped_backend=ogmios_chain_context)from pathlib import Path
from pccontext import OfflineTransferFileContext
chain_context = OfflineTransferFileContext(offline_transfer_file=Path("offline-transfer.json"))from pccontext import YaciDevkitChainContext
chain_context = YaciDevkitChainContext(api_url="http://localhost:8080")from pycardano import (
Address,
StakeSigningKey,
StakeVerificationKey,
PaymentSigningKey,
PaymentVerificationKey,
)
from pccontext.transactions import stake_address_registration
import os
from pccontext import BlockFrostChainContext, Network
network = Network.PREPROD
blockfrost_api_key = os.getenv("BLOCKFROST_API_KEY_PREPROD")
chain_context = BlockFrostChainContext(
project_id=blockfrost_api_key, network=network
)
payment_signing_key = PaymentSigningKey.generate()
payment_verification_key = PaymentVerificationKey.from_signing_key(
payment_signing_key
)
stake_signing_key = StakeSigningKey.generate()
stake_verification_key = StakeVerificationKey.from_signing_key(stake_signing_key)
address = Address(
payment_part=payment_verification_key.hash(),
staking_part=stake_verification_key.hash(),
network=network.get_network(),
)
# Example Stake Address Registration Transaction
signed_stake_address_registration_tx = stake_address_registration(
context=chain_context,
stake_vkey=stake_verification_key,
send_from_addr=address,
signing_keys=[payment_signing_key, stake_signing_key],
)
print(f"Signed Transaction: {signed_stake_address_registration_tx}")
chain_context.submit_tx(signed_stake_address_registration_tx)
print(f"Transaction ID: {signed_stake_address_registration_tx.id}")