Add dependencies

app/routers/contracts.py

@@ -1,7 +1,9 @@
 from typing import Annotated
 
-from fastapi import APIRouter, Depends, Query
+from fastapi import APIRouter, Depends, HTTPException, Query
 
+from hexbytes import HexBytes
+from safe_eth.eth.utils import fast_is_checksum_address
 from sqlmodel.ext.asyncio.session import AsyncSession
 
 from ..datasources.db.database import get_database_session
@@ -24,5 +26,8 @@ async def list_contracts(
     offset: int = Query(None),
     session: AsyncSession = Depends(get_database_session),
 ) -> PaginatedResponse[Contract]:
+    if not fast_is_checksum_address(address):
+        raise HTTPException(status_code=400, detail="Address is not checksumed")
+
     contracts_service = ContractService(limit, offset)
-    return await contracts_service.get_contract(session, address, chain_ids)
+    return await contracts_service.get_contract(session, HexBytes(address), chain_ids)

app/services/contract.py

@@ -1,6 +1,5 @@
 from typing import Any, Sequence
 
-from hexbytes import HexBytes
 from sqlmodel.ext.asyncio.session import AsyncSession
 
 from app.datasources.db.models import Contract
@@ -25,7 +24,7 @@ async def get_all(session: AsyncSession) -> Sequence[Contract]:
         return await Contract.get_all(session)
 
     async def get_contract(
-        self, session: AsyncSession, address: str, chain_ids: list[int] | None
+        self, session: AsyncSession, address: bytes, chain_ids: list[int] | None
     ) -> PaginatedResponse[Any]:
         """
         Get the contract by address and/or chain_ids
@@ -37,5 +36,5 @@ async def get_contract(
         """
 
         return await self.pagination.paginate(
-            session, Contract.get_contract(HexBytes(address), chain_ids)
+            session, Contract.get_contract(address, chain_ids)
         )

requirements/prod.txt

@@ -3,8 +3,10 @@ alembic==1.14.0
 asyncpg==0.30.0
 dramatiq[redis, watch]==1.17.1
 fastapi[all]==0.115.6
+hexbytes==1.2.1
 periodiq==0.13.0
 pydantic-settings==2.7.0
 redis[hiredis]==5.2.1
+safe-eth-py==6.1.0
 sqladmin[full]==0.20.1
 sqlmodel==0.0.22