main: add route for favicon.ico

This avoids a 404 when the browser tries to get favicon.ico.

TODO: convert icon and add in static/favicon.ico

app/const.py

@@ -2,6 +2,7 @@
 DB_URL = 'sqlite:////app/storage/was.db'
 DIR_ASSET = '/app/storage/asset'
 DIR_OTA = '/app/storage/ota'
+FAVICON_PATH = '/app/static/favicon.ico'
 URL_WILLOW_RELEASES = 'https://worker.heywillow.io/api/release?format=was'
 URL_WILLOW_CONFIG = 'https://worker.heywillow.io/api/config'
 URL_WILLOW_TZ = 'https://worker.heywillow.io/api/asset?type=tz'

app/main.py

@@ -11,7 +11,7 @@
     WebSocketDisconnect,
 )
 from contextlib import asynccontextmanager
-from fastapi.responses import RedirectResponse
+from fastapi.responses import FileResponse, RedirectResponse
 from fastapi.staticfiles import StaticFiles
 import logging
 from pathlib import Path
@@ -23,6 +23,7 @@
 from app.const import (
     ALEMBIC_CONFIG,
     DIR_OTA,
+    FAVICON_PATH,
     STORAGE_USER_CONFIG,
 )
 
@@ -159,6 +160,11 @@ def api_redirect_admin():
     return "/admin"
 
 
+@app.get('/favicon.ico', include_in_schema=False)
+async def favicon():
+    return FileResponse(FAVICON_PATH)
+
+
 app.include_router(asset.router)
 app.include_router(client.router)
 app.include_router(config.router)