Implement transaction handling

app/routers/transaction_v1.py

@@ -0,0 +1,22 @@
+from fastapi import APIRouter, Depends
+from fastapi.params import Security
+from sqlalchemy.orm import Session
+
+from app.security import get_api_key
+from app.database import get_db
+from app.schemas.transaction import Transaction
+from app.models.transaction import Transaction as DbTransaction
+
+router = APIRouter(
+    prefix="/transactions",
+    tags=["Transaction (v1)"]
+)
+
+@router.get(path="", response_model=list[Transaction])
+async def get_transactions(
+    skip: int = 0,
+    limit: int = 20,
+    api_key: str = Security(get_api_key),
+    db: Session = Depends(get_db)
+):
+    return db.query(DbTransaction).offset(skip).limit(limit).all()