def buy_asset():
"""
Requires all ocean services running.
"""
setup_logging(default_level=logging.INFO)
ConfigProvider.set_config(ExampleConfig.get_config())
config = ConfigProvider.get_config()
providers = {
'duero': '0xfEF2d5e1670342b9EF22eeeDcb287EC526B48095',
'nile': '0x4aaab179035dc57b35e2ce066919048686f82972'
}
# make ocean instance
ocn = Ocean()
acc = get_account(1)
if not acc:
acc = ([acc for acc in ocn.accounts.list() if acc.password] or ocn.accounts.list())[0]
Diagnostics.verify_contracts()
metadata = example_metadata.metadata.copy()
metadata['main']['dateCreated'] = get_timestamp()
keeper = Keeper.get_instance()
# Register ddo
did = ''
if did:
ddo = ocn.assets.resolve(did)
logging.info(f'using ddo: {did}')
else:
ddo = ocn.assets.create(metadata, acc, providers=[], use_secret_store=True)
assert ddo is not None, f'Registering asset on-chain failed.'
did = ddo.did
logging.info(f'registered ddo: {did}')
# ocn here will be used only to publish the asset. Handling the asset by the publisher
# will be performed by the Brizo server running locally
test_net = os.environ.get('TEST_NET', '')
if test_net.startswith('nile'):
provider = keeper.did_registry.to_checksum_address(providers['nile'])
elif test_net.startswith('duero'):
provider = keeper.did_registry.to_checksum_address(providers['duero'])
else:
provider = '0x068Ed00cF0441e4829D9784fCBe7b9e26D4BD8d0'
# Wait for did registry event
event = keeper.did_registry.subscribe_to_event(
keeper.did_registry.DID_REGISTRY_EVENT_NAME,
30,
event_filter={
'_did': Web3Provider.get_web3().toBytes(hexstr=ddo.asset_id),
'_owner': acc.address},
wait=True
)
if not event:
logging.warning(f'Failed to get the did registry event for asset with did {did}.')
assert keeper.did_registry.get_block_number_updated(ddo.asset_id) > 0, \
f'There is an issue in registering asset {did} on-chain.'
keeper.did_registry.add_provider(ddo.asset_id, provider, acc)
logging.info(f'is {provider} set as did provider: '
f'{keeper.did_registry.is_did_provider(ddo.asset_id, provider)}')
_providers = keeper.did_registry.get_did_providers(ddo.asset_id)
access_template_name = keeper.template_manager.SERVICE_TO_TEMPLATE_NAME['access']
template_id = keeper.template_manager.create_template_id(access_template_name)
approved = keeper.template_manager.is_template_approved(template_id)
print(f'agreement template approved: {approved}')
template_data = keeper.template_manager.get_template(template_id)
print(f'access agreement template: {template_data}')
cons_ocn = Ocean()
consumer_account = get_account(0)
# sign agreement using the registered asset did above
service = ddo.get_service(service_type=ServiceTypes.ASSET_ACCESS)
# This will send the order request to Brizo which in turn will execute the agreement on-chain
cons_ocn.accounts.request_tokens(consumer_account, 10)
sa = ServiceAgreement.from_json(service.as_dictionary())
agreement_id = ''
if not agreement_id:
agreement_id = cons_ocn.assets.order(
did, sa.index, consumer_account)
logging.info('placed order: %s, %s', did, agreement_id)
event = keeper.agreement_manager.subscribe_agreement_created(
agreement_id, 60, None, (), wait=True
)
assert event, "Agreement event is not found, check the keeper node's logs"
logging.info(f'Got agreement event, next: lock reward condition')
event = keeper.lock_reward_condition.subscribe_condition_fulfilled(
agreement_id, 60, None, (), wait=True
)
assert event, "Lock reward condition fulfilled event is not found, check the keeper node's logs"
logging.info('Got lock reward event, next: wait for the access condition..')
event = keeper.access_secret_store_condition.subscribe_condition_fulfilled(
agreement_id, 15, None, (), wait=True
)
logging.info(f'Got access event {event}')
i = 0
while ocn.agreements.is_access_granted(
agreement_id, did, consumer_account.address) is not True and i < 30:
time.sleep(1)
i += 1
assert ocn.agreements.is_access_granted(agreement_id, did, consumer_account.address)
ocn.assets.consume(
agreement_id,
did,
sa.index,
consumer_account,
config.downloads_path)
logging.info('Success buying asset.')
event = keeper.escrow_reward_condition.subscribe_condition_fulfilled(
agreement_id,
30,
None,
(),
wait=True
)
assert event, 'no event for EscrowReward.Fulfilled'
logging.info(f'got EscrowReward.FULFILLED event: {event}')
logging.info('Done buy asset.')
to_base_18,
)
from ocean_lib.web3_internal.contract_handler import ContractHandler
from ocean_lib.web3_internal.web3_provider import Web3Provider
from ocean_lib.web3_internal.web3helper import Web3Helper
from tests.resources.helper_functions import (
get_consumer_ocean_instance,
get_consumer_wallet,
get_ganache_wallet,
get_metadata,
get_publisher_ocean_instance,
get_publisher_wallet,
setup_logging,
)
setup_logging()
@pytest.fixture(autouse=True)
def setup_all():
config = ExampleConfig.get_config()
ConfigProvider.set_config(config)
Web3Provider.init_web3(
provider=get_web3_connection_provider(config.network_url))
ContractHandler.set_artifacts_path(config.artifacts_path)
network = Web3Helper.get_network_name()
wallet = get_ganache_wallet()
if network in ["ganache", "development"] and wallet:
print(