Add GET endpoint for /lions

endpoints/lions.get.py

@@ -0,0 +1,20 @@
+# Entity: SeaLion
+
+from fastapi import APIRouter, Depends, HTTPException, status
+from sqlalchemy.orm import Session
+from app.api.db.database import get_db
+
+router = APIRouter()
+
+@router.get("/lions", response_model=List[SeaLionSchema])
+async def get_all_sea_lions(
+    db: Session = Depends(get_db)
+):
+    """Get all sea lions"""
+    sea_lions = db.query(SeaLion).all()
+    return sea_lions
+```
+
+This endpoint defines a GET route at `/lions` that retrieves all sea lion instances from the database using SQLAlchemy's `db.query(SeaLion).all()` method. The `response_model` parameter is set to `List[SeaLionSchema]`, assuming that a `SeaLionSchema` Pydantic model exists to define the response structure.
+
+The main entity this endpoint works with is `SeaLion`. Note that you'll need to import the `SeaLion` model and `SeaLionSchema` from their respective modules.