crowetic/mev-inspect-py
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

fixed profit calculation and return object

Browse Source
This commit is contained in:
Guilherme Peyrelongue Heise 2021-08-05 20:49:56 -04:00
parent 31ffc20a52
commit 7236215a20
2 changed files with 25 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

36
liquidation_inspector.py
View File

@ -15,24 +15,25 @@ from mev_inspect.trace_classifier import TraceClassifier
from mev_inspect import block from mev_inspect import block
# poetry run inspect -b 12498502 -r 'http://162.55.96.141:8546/' # poetry run inspect -b 12498502 -r 'http://162.55.96.141:8546/'
all_traces = []
result = [] result = []
# Inspect list of classified traces and identify liquidation # Inspect list of classified traces and identify liquidation
def liquidations(traces: List[ClassifiedTrace]): def liquidations(traces: List[ClassifiedTrace]):
event = [] event = []
# For each trace # For each trace
for i in range(1, len(traces)): for k in range(1, len(traces)):
trace = traces[i] trace = traces[k]
try: try:
next = traces[i+1] next = traces[k+1]
except IndexError: except IndexError:
break break
# Liquidation condition # Liquidation condition
if trace.classification == Classification.liquidate: if trace.classification == Classification.liquidate:
# Collateral data from the liquidation. # Collateral data from the liquidation.
# The inputs will differ by DEX, this is AAVE # The inputs will differ by DEX, this is AAVE
all_traces.append(trace)
liquidator = trace.from_address liquidator = trace.from_address
prev = traces[i-1] prev = traces[k-1]
#print(f"Previous: {prev.classification} from {prev.from_address} to {prev.to_address}") #print(f"Previous: {prev.classification} from {prev.from_address} to {prev.to_address}")
print(f"Liquidation found: {liquidator}") print(f"Liquidation found: {liquidator}")
print(f"Hash: {trace.transaction_hash}") print(f"Hash: {trace.transaction_hash}")
@ -42,27 +43,38 @@ def liquidations(traces: List[ClassifiedTrace]):
print(f"\tAmount: {liquidation_amount}") print(f"\tAmount: {liquidation_amount}")
elif (i == '_collateral'): elif (i == '_collateral'):
collateral_type = trace.inputs[i] collateral_type = trace.inputs[i]
print(f"\tType: {collateral_type}") print(f"\tCollateral Address: {collateral_type}")
elif (i == '_reserve'): elif (i == '_reserve'):
reserve = trace.inputs[i] reserve = trace.inputs[i]
print(f"\tUnderlying: {reserve}") print(f"\tReserve Address: {reserve}")
elif(i == '_user'): elif(i == '_user'):
liquidated_usr = trace.inputs[i] liquidated_usr = trace.inputs[i]
print(f"\tLiquidated: {liquidated_usr}") print(f"\tLiquidated Account Address: {liquidated_usr}")
# Define the address of the liquidator # Define the address of the liquidator
# Find a transfer before liquidation with a to_address corresponding to the liquidator # Find a transfer before liquidation with a to_address corresponding to the liquidator
for tx in traces: for tx in traces[0:int(k)]:
if ((tx.classification==Classification.transfer) and (tx.inputs['recipient'] == liquidator)): if ((tx.classification==Classification.transfer) and ('sender' in tx.inputs) and (tx.inputs['sender'] == liquidator)):
amount_sent = tx.inputs['amount']
all_traces.append(tx)
print(f"Transfer from liquidator {liquidator}: \nAmount in received token: {tx.inputs['amount']} to \n{tx.inputs['recipient']} \nTransaction: {tx.transaction_hash}")
elif ((tx.classification==Classification.transfer) and (tx.inputs['recipient']==liquidator)):
amount_received = tx.inputs['amount'] amount_received = tx.inputs['amount']
print(f"Transfer to liquidator {liquidator}: \nAmount in received token: {tx.inputs['amount']} \nTransaction: {tx.transaction_hash}") all_traces.append(tx)
print(f"Transfer to liquidator {liquidator}: \nAmount in received token: {tx.inputs['amount']} from \n{tx.from_address} \nTransaction: {tx.transaction_hash}")
try:
profit = amount_received - amount_sent
except UnboundLocalError:
print("No match ;[")
profit = 0
# Tag liquidation # Tag liquidation
result.append(Liquidation(strategy=StrategyType.liquidation, result.append(Liquidation(strategy=StrategyType.liquidation,
traces=[trace, next], traces=all_traces,
protocols=[trace.protocol], protocols=[trace.protocol],
collateral_type=collateral_type, collateral_type=collateral_type,
collateral_amount=liquidation_amount, collateral_amount=liquidation_amount,
profit=profit,
reserve=reserve, reserve=reserve,
collateral_source="",)) collateral_source="",))
return result return result

1
mev_inspect/schemas/strategy.py
View File

@ -17,3 +17,4 @@ class Liquidation(Strategy):
collateral_amount: int collateral_amount: int
collateral_source: str collateral_source: str
reserve: str reserve: str
profit: float