def on_get(self, req, resp):
substrate = SubstrateInterface(SUBSTRATE_RPC_URL)
resp.status = falcon.HTTP_200
current_era = substrate.get_storage(
block_hash=
"0x519fc882113d886615ad5c7a93f8319640270ab8a09546798f7f8d973a99b017",
module="Staking",
function="CurrentEra",
return_scale_type='BlockNumber')
# Retrieve validator for new session from storage
validators = substrate.get_storage(
block_hash=
"0x519fc882113d886615ad5c7a93f8319640270ab8a09546798f7f8d973a99b017",
module="Session",
function="Validators",
return_scale_type='Vec<AccountId>') or []
# for validator in validators:
# storage_bytes = substrate.get_storage("0x904871d0e6284c0555134fa187891580979a2fc426a4f8873a8d15d8cca6020f",
# "Balances", "FreeBalance", validator.replace('0x', ''))
# #print(validator.replace('0x', ''))
#
# if storage_bytes:
# obj = ScaleDecoder.get_decoder_class('Balance', ScaleBytes(storage_bytes))
# nominators.append(obj.decode())
resp.media = {'validators': validators, 'current_era': current_era}
def serialize_item(self, item):
substrate = SubstrateInterface(SUBSTRATE_RPC_URL)
data = item.serialize()
storage_call = RuntimeStorage.query(self.session).filter_by(
module_id='system',
name='Account',
).order_by(RuntimeStorage.spec_version.desc()).first()
print(storage_call)
account = substrate.get_storage(
block_hash=None,
module='System',
function='Account',
params=item.id,
return_scale_type=storage_call.type_value,
hasher=storage_call.type_hasher,
metadata_version=SUBSTRATE_METADATA_VERSION
)
print('----------------')
print(account)
data['attributes']['free_balance'] = account['data']['free']
data['attributes']['reserved_balance'] = account['data']['reserved']
data['attributes']['nonce'] = account['nonce']
return data
def on_post(self, req, resp):
msg = "TODO"
if req.media.get('account_id'):
account = Account.query(self.session).filter(Account.id == req.media.get('account_id')).first()
if account:
substrate = SubstrateInterface(SUBSTRATE_RPC_URL)
balance = substrate.get_storage(
block_hash=None,
module='Balances',
function='FreeBalance',
params=account.id,
return_scale_type='Balance',
hasher='Blake2_256') or 0
account.balance = balance
self.session.commit()
resp.media = {
'status': 'success',
'data': {
'message': msg
}
}
else:
resp.status = falcon.HTTP_404
resp.media = {'result': 'Account not found'}
def accumulation_hook(self, db_session):
if self.extrinsic.success:
vote_account_id = self.extrinsic.address
stash_account_id = self.extrinsic.address
# TODO refactor when new runtime aware substrateinterface
# TODO make substrateinterface part of processor over websockets
# Get balance of stash_account
substrate = SubstrateInterface(SUBSTRATE_RPC_URL)
storage_call = RuntimeStorage.query(db_session).filter_by(
module_id='balances',
name='FreeBalance',
).order_by(RuntimeStorage.spec_version.desc()).first()
stash = substrate.get_storage(
block_hash=self.block.hash,
module='Balances',
function='FreeBalance',
params=stash_account_id,
return_scale_type=storage_call.type_value,
hasher=storage_call.type_hasher)
vote_audit = DemocracyVoteAudit(
block_id=self.extrinsic.block_id,
extrinsic_idx=self.extrinsic.extrinsic_idx,
type_id=DEMOCRACY_VOTE_AUDIT_TYPE_NORMAL,
data={
'vote_account_id': vote_account_id,
'stash_account_id': stash_account_id,
'stash': stash
})
# Process parameters
for param in self.extrinsic.params:
if param.get('name') == 'ref_index':
vote_audit.democracy_referendum_id = param.get('value')
if param.get('name') == 'vote':
vote_audit.data['vote_raw'] = param.get('value')
vote_audit.data['vote_yes'] = bool(
vote_audit.data['vote_raw'])
vote_audit.data['vote_no'] = not bool(
vote_audit.data['vote_raw'])
# Determine conviction and weight of vote
vote_audit.data['conviction'] = vote_audit.data[
'vote_raw'] & Conviction.CONVICTION_MASK
vote_audit.data['vote_yes_weighted'] = int(
vote_audit.data['vote_yes']) * vote_audit.data['stash']
vote_audit.data['vote_no_weighted'] = int(
vote_audit.data['vote_no']) * vote_audit.data['stash']
vote_audit.save(db_session)
def sequencing_hook(self, db_session, parent_block_data, parent_sequenced_block_data):
for account_audit in AccountAudit.query(db_session).filter_by(block_id=self.block.id).order_by('event_idx'):
try:
account = Account.query(db_session).filter_by(id=account_audit.account_id).one()
if account_audit.type_id == ACCOUNT_AUDIT_TYPE_REAPED:
account.count_reaped += 1
account.is_reaped = True
elif account_audit.type_id == ACCOUNT_AUDIT_TYPE_NEW:
account.is_reaped = False
account.updated_at_block = self.block.id
except NoResultFound:
account = Account(
id=account_audit.account_id,
address=ss58_encode(account_audit.account_id, SUBSTRATE_ADDRESS_TYPE),
created_at_block=self.block.id,
updated_at_block=self.block.id,
balance=0
)
### account balance
substrate = SubstrateInterface(SUBSTRATE_RPC_URL)
balance = substrate.get_storage(
block_hash=None,
module='Balances',
function='FreeBalance',
params=account_audit.account_id,
return_scale_type='Balance',
hasher='Blake2_256') or 0
account.balance = balance
# If reaped but does not exist, create new account for now
if account_audit.type_id != ACCOUNT_AUDIT_TYPE_NEW:
account.is_reaped = True
account.count_reaped = 1
account.save(db_session)
def accumulation_hook(self, db_session):
# Check event requirements
if len(self.event.attributes) == 2 and \
self.event.attributes[0]['type'] == 'ReferendumIndex' and \
self.event.attributes[1]['type'] == 'VoteThreshold':
# Retrieve proposal from storage
substrate = SubstrateInterface(SUBSTRATE_RPC_URL)
storage_call = RuntimeStorage.query(db_session).filter_by(
module_id='democracy',
name='ReferendumInfoOf',
).order_by(RuntimeStorage.spec_version.desc()).first()
proposal = substrate.get_storage(
block_hash=self.block.hash,
module='Democracy',
function='ReferendumInfoOf',
params=self.event.attributes[0]['valueRaw'],
return_scale_type=storage_call.type_value,
hasher=storage_call.type_hasher,
metadata=self.metadata
)
referendum_audit = DemocracyReferendumAudit(
democracy_referendum_id=self.event.attributes[0]['value'],
block_id=self.event.block_id,
extrinsic_idx=self.event.extrinsic_idx,
event_idx=self.event.event_idx,
type_id=DEMOCRACY_REFERENDUM_AUDIT_TYPE_STARTED,
data={
'vote_threshold': self.event.attributes[1]['value'],
'ReferendumIndex': self.event.attributes[0]['valueRaw'],
'proposal': proposal
}
)
referendum_audit.save(db_session)
def add_session(self, db_session, session_id):
current_era = None
validators = []
nominators = []
validation_session_lookup = {}
substrate = SubstrateInterface(SUBSTRATE_RPC_URL)
# Retrieve current era
storage_call = RuntimeStorage.query(db_session).filter_by(
module_id='staking',
name='CurrentEra',
spec_version=self.block.spec_version_id
).first()
if storage_call:
try:
current_era = substrate.get_storage(
block_hash=self.block.hash,
module="Staking",
function="CurrentEra",
return_scale_type=storage_call.get_return_type(),
hasher=storage_call.type_hasher
)
except RemainingScaleBytesNotEmptyException:
pass
# Retrieve validators for new session from storage
storage_call = RuntimeStorage.query(db_session).filter_by(
module_id='session',
name='Validators',
spec_version=self.block.spec_version_id
).first()
if storage_call:
try:
validators = substrate.get_storage(
block_hash=self.block.hash,
module="Session",
function="Validators",
return_scale_type=storage_call.get_return_type(),
hasher=storage_call.type_hasher
) or []
except RemainingScaleBytesNotEmptyException:
pass
# Retrieve all sessions in one call
if not LEGACY_SESSION_VALIDATOR_LOOKUP:
# Retrieve session account
# TODO move to network specific data types
storage_call = RuntimeStorage.query(db_session).filter_by(
module_id='session',
name='QueuedKeys',
spec_version=self.block.spec_version_id
).first()
if storage_call:
try:
validator_session_list = substrate.get_storage(
block_hash=self.block.hash,
module="Session",
function="QueuedKeys",
return_scale_type=storage_call.get_return_type(),
hasher=storage_call.type_hasher
) or []
except RemainingScaleBytesNotEmptyException:
try:
validator_session_list = substrate.get_storage(
block_hash=self.block.hash,
module="Session",
function="QueuedKeys",
return_scale_type='Vec<(ValidatorId, LegacyKeys)>',
hasher=storage_call.type_hasher
) or []
except RemainingScaleBytesNotEmptyException:
validator_session_list = substrate.get_storage(
block_hash=self.block.hash,
module="Session",
function="QueuedKeys",
return_scale_type='Vec<(ValidatorId, EdgewareKeys)>',
hasher=storage_call.type_hasher
) or []
# build lookup dict
validation_session_lookup = {}
for validator_session_item in validator_session_list:
session_key = ''
if validator_session_item['keys'].get('grandpa'):
session_key = validator_session_item['keys'].get('grandpa')
if validator_session_item['keys'].get('ed25519'):
session_key = validator_session_item['keys'].get('ed25519')
validation_session_lookup[
validator_session_item['validator'].replace('0x', '')] = session_key.replace('0x', '')
for rank_nr, validator_account in enumerate(validators):
validator_stash = None
validator_controller = None
validator_ledger = {}
validator_prefs = {}
validator_session = ''
exposure = {}
if not LEGACY_SESSION_VALIDATOR_LOOKUP:
validator_stash = validator_account.replace('0x', '')
# Retrieve stash account
storage_call = RuntimeStorage.query(db_session).filter_by(
module_id='staking',
name='Bonded',
spec_version=self.block.spec_version_id
).first()
if storage_call:
try:
validator_controller = substrate.get_storage(
block_hash=self.block.hash,
module="Staking",
function="Bonded",
params=validator_stash,
return_scale_type=storage_call.get_return_type(),
hasher=storage_call.type_hasher
) or ''
validator_controller = validator_controller.replace('0x', '')
except RemainingScaleBytesNotEmptyException:
pass
# Retrieve session account
validator_session = validation_session_lookup.get(validator_stash)
else:
validator_controller = validator_account.replace('0x', '')
# Retrieve stash account
storage_call = RuntimeStorage.query(db_session).filter_by(
module_id='staking',
name='Ledger',
spec_version=self.block.spec_version_id
).first()
if storage_call:
try:
validator_ledger = substrate.get_storage(
block_hash=self.block.hash,
module="Staking",
function="Ledger",
params=validator_controller,
return_scale_type=storage_call.get_return_type(),
hasher=storage_call.type_hasher
) or {}
validator_stash = validator_ledger.get('stash', '').replace('0x', '')
except RemainingScaleBytesNotEmptyException:
pass
# Retrieve session account
storage_call = RuntimeStorage.query(db_session).filter_by(
module_id='session',
name='NextKeyFor',
spec_version=self.block.spec_version_id
).first()
if storage_call:
try:
validator_session = substrate.get_storage(
block_hash=self.block.hash,
module="Session",
function="NextKeyFor",
params=validator_controller,
return_scale_type=storage_call.get_return_type(),
hasher=storage_call.type_hasher
) or ''
except RemainingScaleBytesNotEmptyException:
pass
validator_session = validator_session.replace('0x', '')
# Retrieve validator preferences for stash account
storage_call = RuntimeStorage.query(db_session).filter_by(
module_id='staking',
name='Validators',
spec_version=self.block.spec_version_id
).first()
if storage_call:
try:
validator_prefs = substrate.get_storage(
block_hash=self.block.hash,
module="Staking",
function="Validators",
params=validator_stash,
return_scale_type=storage_call.get_return_type(),
hasher=storage_call.type_hasher
) or {'col1': {}, 'col2': {}}
except RemainingScaleBytesNotEmptyException:
pass
# Retrieve nominators
storage_call = RuntimeStorage.query(db_session).filter_by(
module_id='staking',
name='Stakers',
spec_version=self.block.spec_version_id
).first()
if storage_call:
try:
exposure = substrate.get_storage(
block_hash=self.block.hash,
module="Staking",
function="Stakers",
params=validator_stash,
return_scale_type=storage_call.get_return_type(),
hasher=storage_call.type_hasher
) or {}
except RemainingScaleBytesNotEmptyException:
pass
if exposure.get('total'):
bonded_nominators = exposure.get('total') - exposure.get('own')
else:
bonded_nominators = None
session_validator = SessionValidator(
session_id=session_id,
validator_controller=validator_controller,
validator_stash=validator_stash,
bonded_total=exposure.get('total'),
bonded_active=validator_ledger.get('active'),
bonded_own=exposure.get('own'),
bonded_nominators=bonded_nominators,
validator_session=validator_session,
rank_validator=rank_nr,
unlocking=validator_ledger.get('unlocking'),
count_nominators=len(exposure.get('others', [])),
unstake_threshold=validator_prefs.get('col1', {}).get('unstakeThreshold'),
commission=validator_prefs.get('col1', {}).get('validatorPayment')
)
session_validator.save(db_session)
# Store nominators
for rank_nominator, nominator_info in enumerate(exposure.get('others', [])):
nominator_stash = nominator_info.get('who').replace('0x', '')
nominators.append(nominator_stash)
session_nominator = SessionNominator(
session_id=session_id,
rank_validator=rank_nr,
rank_nominator=rank_nominator,
nominator_stash=nominator_stash,
bonded=nominator_info.get('value'),
)
session_nominator.save(db_session)
# Store session
session = Session(
id=session_id,
start_at_block=self.block.id + 1,
created_at_block=self.block.id,
created_at_extrinsic=self.event.extrinsic_idx,
created_at_event=self.event.event_idx,
count_validators=len(validators),
count_nominators=len(set(nominators)),
era=current_era
)
session.save(db_session)
# Retrieve previous session to calculate count_blocks
prev_session = Session.query(db_session).filter_by(id=session_id - 1).first()
if prev_session:
count_blocks = self.block.id - prev_session.start_at_block + 1
else:
count_blocks = self.block.id
session_total = SessionTotal(
id=session_id - 1,
end_at_block=self.block.id,
count_blocks=count_blocks
)
session_total.save(db_session)
def serialize_item(self, item):
data = item.serialize()
# Get balance history
account_info_snapshot = AccountInfoSnapshot.query(
self.session).filter_by(account_id=item.id).order_by(
AccountInfoSnapshot.block_id.desc())[:1000]
data['attributes']['balance_history'] = [{
'name':
"Total balance",
'type':
'line',
'data': [[
item.block_id,
float((item.balance_total or 0) /
10**settings.SUBSTRATE_TOKEN_DECIMALS)
] for item in reversed(account_info_snapshot)],
}]
if settings.USE_NODE_RETRIEVE_BALANCES == 'True':
substrate = SubstrateInterface(
url=settings.SUBSTRATE_RPC_URL,
type_registry_preset=settings.TYPE_REGISTRY)
if settings.SUBSTRATE_STORAGE_BALANCE == 'Account':
storage_call = RuntimeStorage.query(self.session).filter_by(
module_id='system',
name='Account',
).order_by(RuntimeStorage.spec_version.desc()).first()
if storage_call:
account_data = substrate.get_storage(
block_hash=None,
module='System',
function='Account',
params=[item.id],
return_scale_type=storage_call.type_value,
hasher=storage_call.type_hasher,
metadata_version=settings.SUBSTRATE_METADATA_VERSION)
if account_data:
data['attributes']['free_balance'] = account_data[
'data']['free']
data['attributes']['reserved_balance'] = account_data[
'data']['reserved']
data['attributes'][
'misc_frozen_balance'] = account_data['data'][
'miscFrozen']
data['attributes'][
'fee_frozen_balance'] = account_data['data'][
'feeFrozen']
data['attributes']['nonce'] = account_data['nonce']
elif settings.SUBSTRATE_STORAGE_BALANCE == 'Balances.Account':
storage_call = RuntimeStorage.query(self.session).filter_by(
module_id='balances',
name='Account',
).order_by(RuntimeStorage.spec_version.desc()).first()
if storage_call:
account_data = substrate.get_storage(
block_hash=None,
module='Balances',
function='Account',
params=[item.id],
return_scale_type=storage_call.type_value,
hasher=storage_call.type_hasher,
metadata_version=settings.SUBSTRATE_METADATA_VERSION)
if account_data:
data['attributes']['balance_free'] = account_data[
'free']
data['attributes']['balance_reserved'] = account_data[
'reserved']
data['attributes'][
'misc_frozen_balance'] = account_data['miscFrozen']
data['attributes'][
'fee_frozen_balance'] = account_data['feeFrozen']
data['attributes']['nonce'] = None
else:
storage_call = RuntimeStorage.query(self.session).filter_by(
module_id='balances',
name='FreeBalance',
).order_by(RuntimeStorage.spec_version.desc()).first()
if storage_call:
data['attributes']['free_balance'] = substrate.get_storage(
block_hash=None,
module='Balances',
function='FreeBalance',
params=[item.id],
return_scale_type=storage_call.type_value,
hasher=storage_call.type_hasher,
metadata_version=settings.SUBSTRATE_METADATA_VERSION)
storage_call = RuntimeStorage.query(self.session).filter_by(
module_id='balances',
name='ReservedBalance',
).order_by(RuntimeStorage.spec_version.desc()).first()
if storage_call:
data['attributes'][
'reserved_balance'] = substrate.get_storage(
block_hash=None,
module='Balances',
function='ReservedBalance',
params=[item.id],
return_scale_type=storage_call.type_value,
hasher=storage_call.type_hasher,
metadata_version=settings.
SUBSTRATE_METADATA_VERSION)
storage_call = RuntimeStorage.query(self.session).filter_by(
module_id='system',
name='AccountNonce',
).order_by(RuntimeStorage.spec_version.desc()).first()
if storage_call:
data['attributes']['nonce'] = substrate.get_storage(
block_hash=None,
module='System',
function='AccountNonce',
params=[item.id],
return_scale_type=storage_call.type_value,
hasher=storage_call.type_hasher,
metadata_version=settings.SUBSTRATE_METADATA_VERSION)
return data
def process_genesis(self, block):
substrate = SubstrateInterface(SUBSTRATE_RPC_URL)
# Set block time of parent block
child_block = Block.query(
self.db_session).filter_by(parent_hash=block.hash).first()
block.set_datetime(child_block.datetime)
# Retrieve genesis accounts
storage_call = RuntimeStorage.query(self.db_session).filter_by(
module_id='indices',
name='NextEnumSet',
spec_version=block.spec_version_id).first()
if storage_call:
genesis_account_page_count = substrate.get_storage(
block_hash=block.hash,
module="Indices",
function="NextEnumSet",
return_scale_type=storage_call.get_return_type(),
hasher=storage_call.type_hasher) or 0
# Get Accounts on EnumSet
storage_call = RuntimeStorage.query(self.db_session).filter_by(
module_id='indices',
name='EnumSet',
spec_version=block.spec_version_id).first()
if storage_call:
block.count_accounts_new = 0
block.count_accounts = 0
for enum_set_nr in range(0, genesis_account_page_count + 1):
account_index_u32 = U32()
account_index_u32.encode(enum_set_nr)
genesis_accounts = substrate.get_storage(
block_hash=block.hash,
module="Indices",
function="EnumSet",
params=account_index_u32.data.data.hex(),
return_scale_type=storage_call.get_return_type(),
hasher=storage_call.type_hasher)
if genesis_accounts:
block.count_accounts_new += len(genesis_accounts)
block.count_accounts += len(genesis_accounts)
for idx, account_id in enumerate(genesis_accounts):
account_audit = AccountAudit(
account_id=account_id.replace('0x', ''),
block_id=block.id,
extrinsic_idx=None,
event_idx=None,
type_id=ACCOUNT_AUDIT_TYPE_NEW)
account_audit.save(self.db_session)
account_index_id = enum_set_nr * 64 + idx
account_index_audit = AccountIndexAudit(
account_index_id=account_index_id,
account_id=account_id.replace('0x', ''),
block_id=block.id,
extrinsic_idx=None,
event_idx=None,
type_id=ACCOUNT_INDEX_AUDIT_TYPE_NEW)
account_index_audit.save(self.db_session)
block.save(self.db_session)
# Create initial session
initial_session_event = NewSessionEventProcessor(block, Event(), None)
initial_session_event.add_session(db_session=self.db_session,
session_id=0)
def serialize_item(self, item):
substrate = SubstrateInterface(SUBSTRATE_RPC_URL)
data = item.serialize()
if SUBSTRATE_STORAGE_BALANCE == 'Account':
storage_call = RuntimeStorage.query(self.session).filter_by(
module_id='balances',
name='Account',
).order_by(RuntimeStorage.spec_version.desc()).first()
if storage_call:
account_data = substrate.get_storage(
block_hash=None,
module='Balances',
function='Account',
params=item.id,
return_scale_type=storage_call.type_value,
hasher=storage_call.type_hasher,
metadata_version=SUBSTRATE_METADATA_VERSION)
if account_data:
data['attributes']['free_balance'] = account_data['free']
data['attributes']['reserved_balance'] = account_data[
'reserved']
else:
storage_call = RuntimeStorage.query(self.session).filter_by(
module_id='balances',
name='FreeBalance',
).order_by(RuntimeStorage.spec_version.desc()).first()
if storage_call:
data['attributes']['free_balance'] = substrate.get_storage(
block_hash=None,
module='Balances',
function='FreeBalance',
params=item.id,
return_scale_type=storage_call.type_value,
hasher=storage_call.type_hasher,
metadata_version=SUBSTRATE_METADATA_VERSION)
storage_call = RuntimeStorage.query(self.session).filter_by(
module_id='balances',
name='ReservedBalance',
).order_by(RuntimeStorage.spec_version.desc()).first()
if storage_call:
data['attributes']['reserved_balance'] = substrate.get_storage(
block_hash=None,
module='Balances',
function='ReservedBalance',
params=item.id,
return_scale_type=storage_call.type_value,
hasher=storage_call.type_hasher,
metadata_version=SUBSTRATE_METADATA_VERSION)
storage_call = RuntimeStorage.query(self.session).filter_by(
module_id='system',
name='AccountNonce',
).order_by(RuntimeStorage.spec_version.desc()).first()
if storage_call:
data['attributes']['nonce'] = substrate.get_storage(
block_hash=None,
module='System',
function='AccountNonce',
params=item.id,
return_scale_type=storage_call.type_value,
hasher=storage_call.type_hasher,
metadata_version=SUBSTRATE_METADATA_VERSION)
return data
