Add simple health check endpoint to determine API accessibility

API/main.py

@@ -36,6 +36,7 @@
 from .download_export import router as download_router
 from .test_router import router as test_router
 from .status import router as status_router
+from .system import router as health_router
 from fastapi import  Request
 from fastapi.responses import JSONResponse
 from src.galaxy.db_session import database_instance
@@ -71,6 +72,7 @@
 app.include_router(tm_router)
 app.include_router(status_router)
 app.include_router(raw_data_router)
+app.include_router(health_router)
 if use_s3_to_upload is False : # only mount the disk if config is set to disk 
     app.include_router(download_router)
 

API/system.py

@@ -0,0 +1,42 @@
+# Copyright (C) 2021 Humanitarian OpenStreetmap Team
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as
+# published by the Free Software Foundation, either version 3 of the
+# License, or (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+# Humanitarian OpenStreetmap Team
+# 1100 13th Street NW Suite 800 Washington, D.C. 20005
+# <[email protected]>
+
+"""
+  Router Responsible for Checking API Health 
+"""
+
+from fastapi import APIRouter
+from fastapi_versioning import version
+
+router = APIRouter(prefix="/system")
+
+@router.get("/health/")
+@version(1)
+def check_system_health():
+  """Simple health check for API accessibility
+    
+    Returns:
+    
+        {
+          "status": "healthy"
+        }
+  """
+  return {"status": "healthy"}
+
+

src/galaxy/app.py

@@ -1273,5 +1273,3 @@ def __call__(self, bytes_amount):
             self._seen_so_far += bytes_amount
             percentage = (self._seen_so_far / self._size) * 100
             logging.debug("\r%s  %s / %s  (%.2f%%)" ,self._filename, self._seen_so_far, self._size,percentage)
-
-