1 files changed, 25 insertions, 0 deletions
diff --git a/thallium-backend/src/app.py b/thallium-backend/src/app.py
new file mode 100644
index 0000000..27ec8ab
--- /dev/null
+++ b/thallium-backend/src/app.py
@@ -0,0 +1,25 @@
+import logging
+
+from fastapi import FastAPI, Request
+from fastapi.exceptions import RequestValidationError
+from fastapi.responses import JSONResponse
+
+from src.settings import CONFIG
+
+log = logging.getLogger(__name__)
+
+
+fastapi_app = FastAPI(debug=CONFIG.debug)
+
+
+@fastapi_app.get("/heartbeat")
+def health_check() -> JSONResponse:
+    """Return basic response, for use as a health check."""
+    return JSONResponse({"detail": "I am alive!"})
+
+
+@fastapi_app.exception_handler(RequestValidationError)
+def pydantic_validation_error(request: Request, error: RequestValidationError) -> JSONResponse:
+    """Raise a warning for pydantic validation errors, before returning."""
+    log.warning("Error from %s: %s", request.url, error)
+    return JSONResponse({"error": str(error)}, status_code=422)