Define simple local runner

.devcontainer/requirements.txt

@@ -16,4 +16,5 @@ uvicorn[standard]
 sqlmodel
 # Testing
 pytest==9.0.2
-pytest-cov==7.0.0
+pytest-cov==7.0.0
+ipykernel>=6.25,<7

.gitignore

@@ -242,6 +242,8 @@ fabric.properties
 local_data/*
 /local_data/*
 etl/epc/local_data/*
+/backend/condition/sample_data/lbwf/*
+/backend/condition/sample_data/peadody/*
 
 *.DS_Store
 infrastructure/terraform/.terraform*

backend/condition/handler.py

@@ -0,0 +1,16 @@
+from typing import Mapping, Any
+from io import BytesIO
+
+from utils.logger import setup_logger
+from ingestion.processor import process_file
+
+
+logger = setup_logger()
+
+def handler(event: Mapping[str, Any], context: Any) -> None:
+    # Temporary stub for PoC wiring
+    dummy_stream = BytesIO(b"")
+
+    source_key = event.get("source_key", "unknown-source")
+
+    process_file(dummy_stream, source_key)

backend/condition/ingestion/processor.py

@@ -0,0 +1,6 @@
+from typing import BinaryIO, List
+
+from utils.logger import setup_logger
+
+def process_file(file_stream: BinaryIO, source_key: str) -> None:
+    print(f"[processor] Received file: {source_key}")

backend/condition/local_runner.py

@@ -0,0 +1,25 @@
+from pathlib import Path
+
+from ingestion.processor import process_file
+
+def main() -> None:
+    try:
+        # Works in scripts / debugger / pytest
+        ROOT_DIR = Path(__file__).resolve().parents[1]
+    except NameError:
+        # __file__ is not defined in notebooks
+        ROOT_DIR = Path.cwd()
+
+    path: Path = ROOT_DIR / "condition" / "sample_data"
+
+    lbwf_path: Path = path / "lbwf" / "LBWF - Example Asset Data September 2025.xlsx"  # TODO: get this from s3 as part of devcontainer init
+
+    with lbwf_path.open("rb") as f:
+        process_file(
+            file_stream=f,
+            source_key=lbwf_path.as_posix(),
+        )
+
+if __name__ == "__main__":
+    main()
+