Create firestore_client.py

firestore_client.py

@@ -0,0 +1,9 @@
+import os
+import json
+from google.cloud import firestore
+from google.oauth2 import service_account
+
+def get_firestore_client():
+    creds = json.loads(os.environ['FIREBASE_CREDENTIALS_JSON'])
+    credentials = service_account.Credentials.from_service_account_info(creds)
+    return firestore.Client(credentials=credentials)