improve backend performance with caching

mealie/app.py

@@ -1,5 +1,7 @@
+from mealie.services.recipe.all_recipes import subscripte_to_recipe_events
 import uvicorn
 from fastapi import FastAPI
+from fastapi.middleware.gzip import GZipMiddleware
 
 from mealie.core.config import APP_VERSION, settings
 from mealie.core.root_logger import get_logger
@@ -24,6 +26,8 @@ app = FastAPI(
     redoc_url=settings.REDOC_URL,
 )
 
+app.add_middleware(GZipMiddleware, minimum_size=1000)
+
 
 def start_scheduler():
     import mealie.services.scheduler.scheduled_jobs  # noqa: F401
@@ -78,6 +82,7 @@ def system_startup():
         )
     )
     create_general_event("Application Startup", f"Mealie API started on port {settings.API_PORT}")
+    subscripte_to_recipe_events()
 
 
 def main():

mealie/db/database.py

@@ -1,5 +1,6 @@
 from logging import getLogger
 from random import randint
+from typing import Callable
 
 from mealie.db.db_base import BaseDocument
 from mealie.db.models.event import Event, EventNotification
@@ -20,11 +21,15 @@ from mealie.schema.admin import SiteTheme
 from mealie.schema.events import Event as EventSchema
 from mealie.schema.events import EventNotificationIn
 from mealie.schema.meal_plan import MealPlanOut, ShoppingListOut
-from mealie.schema.recipe import (CommentOut, Recipe, RecipeCategoryResponse,
-                                  RecipeIngredientFood, RecipeIngredientUnit,
-                                  RecipeTagResponse)
-from mealie.schema.user import (GroupInDB, LongLiveTokenInDB, SignUpOut,
-                                UserInDB)
+from mealie.schema.recipe import (
+    CommentOut,
+    Recipe,
+    RecipeCategoryResponse,
+    RecipeIngredientFood,
+    RecipeIngredientUnit,
+    RecipeTagResponse,
+)
+from mealie.schema.user import GroupInDB, LongLiveTokenInDB, SignUpOut, UserInDB
 from sqlalchemy.orm.session import Session
 
 logger = getLogger()
@@ -36,9 +41,9 @@ class _Recipes(BaseDocument):
         self.sql_model: RecipeModel = RecipeModel
         self.schema: Recipe = Recipe
 
-    def get_all_not_private(
-        self, session: Session, limit: int = None, order_by: str = None, start=0, override_schema=None
-    ):
+        self.observers = []
+
+    def get_all_public(self, session: Session, limit: int = None, order_by: str = None, start=0, override_schema=None):
         eff_schema = override_schema or self.schema
 
         if order_by:
@@ -86,6 +91,15 @@ class _Recipes(BaseDocument):
             session, attribute_name=RecipeModel.tags, attr_match=None, count=count, override_schema=override_schema
         )
 
+    def subscribe(self, func: Callable) -> None:
+        print("Subscripe", func)
+        self.observers.append(func)
+
+    def update_observers(self) -> None:
+        print("Updating Observers", self.observers)
+        for observer in self.observers:
+            observer()
+
 
 class _IngredientFoods(BaseDocument):
     def __init__(self) -> None:

mealie/db/db_base.py

@@ -16,20 +16,24 @@ class BaseDocument:
         self.store: str
         self.sql_model: SqlAlchemyBase
         self.schema: BaseModel
+        self.observers: list = None
 
     def get_all(
         self, session: Session, limit: int = None, order_by: str = None, start=0, end=9999, override_schema=None
     ) -> list[dict]:
+        logger.info("Starting Query")
         eff_schema = override_schema or self.schema
 
         if order_by:
             order_attr = getattr(self.sql_model, str(order_by))
+            logger.info("Ending Query")
 
             return [
                 eff_schema.from_orm(x)
                 for x in session.query(self.sql_model).order_by(order_attr.desc()).offset(start).limit(limit).all()
             ]
 
+        logger.info("Ending Query")
         return [eff_schema.from_orm(x) for x in session.query(self.sql_model).offset(start).limit(limit).all()]
 
     def get_all_limit_columns(self, session: Session, fields: list[str], limit: int = None) -> list[SqlAlchemyBase]:
@@ -129,6 +133,9 @@ class BaseDocument:
         session.add(new_document)
         session.commit()
 
+        if hasattr(self, "update_observers"):
+            self.update_observers()
+
         return self.schema.from_orm(new_document)
 
     def update(self, session: Session, match_value: str, new_data: dict) -> BaseModel:
@@ -146,6 +153,9 @@ class BaseDocument:
         entry = self._query_one(session=session, match_value=match_value)
         entry.update(session=session, **new_data)
 
+        if hasattr(self, "update_observers"):
+            self.update_observers()
+
         session.commit()
         return self.schema.from_orm(entry)
 
@@ -169,12 +179,18 @@ class BaseDocument:
         session.delete(result)
         session.commit()
 
+        if hasattr(self, "update_observers"):
+            self.update_observers()
+
         return results_as_model
 
     def delete_all(self, session: Session) -> None:
         session.query(self.sql_model).delete()
         session.commit()
 
+        if hasattr(self, "update_observers"):
+            self.update_observers()
+
     def count_all(self, session: Session, match_key=None, match_value=None) -> int:
         if None in [match_key, match_value]:
             return session.query(self.sql_model).count()

mealie/routes/recipe/all_recipe_routes.py

@@ -3,14 +3,15 @@ from mealie.db.database import db
 from mealie.db.db_setup import generate_session
 from mealie.routes.deps import is_logged_in
 from mealie.schema.recipe import RecipeSummary
+from mealie.services.recipe.all_recipes import get_all_recipes_public, get_all_recipes_user
 from slugify import slugify
 from sqlalchemy.orm.session import Session
 
 router = APIRouter(tags=["Query All Recipes"])
 
 
-@router.get("/api/recipes", response_model=list[RecipeSummary])
-async def get_recipe_summary(
+@router.get("/api/recipes")
+def get_recipe_summary(
     start=0, limit=9999, session: Session = Depends(generate_session), user: bool = Depends(is_logged_in)
 ):
     """
@@ -26,14 +27,10 @@ async def get_recipe_summary(
     """
 
     if user:
-        return db.recipes.get_all(
-            session, limit=limit, start=start, order_by="date_updated", override_schema=RecipeSummary
-        )
+        return get_all_recipes_user(limit, start)
 
     else:
-        return db.recipes.get_all_not_private(
-            session, limit=limit, start=start, order_by="date_updated", override_schema=RecipeSummary
-        )
+        return get_all_recipes_public(limit, start)
 
 
 @router.get("/api/recipes/summary/untagged", response_model=list[RecipeSummary])

mealie/services/recipe/all_recipes.py

@@ -0,0 +1,38 @@
+import json
+from functools import lru_cache
+
+from fastapi import Response
+from fastapi.encoders import jsonable_encoder
+from mealie.db.database import db
+from mealie.db.db_setup import SessionLocal
+from mealie.schema.recipe import RecipeSummary
+
+
+@lru_cache(maxsize=1)
+def get_all_recipes_user(limit, start):
+    with SessionLocal() as session:
+        all_recipes: list[RecipeSummary] = db.recipes.get_all(
+            session, limit=limit, start=start, order_by="date_updated", override_schema=RecipeSummary
+        )
+        all_recipes_json = [recipe.dict() for recipe in all_recipes]
+        return Response(content=json.dumps(jsonable_encoder(all_recipes_json)), media_type="application/json")
+
+
+@lru_cache(maxsize=1)
+def get_all_recipes_public(limit, start):
+    with SessionLocal() as session:
+        all_recipes: list[RecipeSummary] = db.recipes.get_all_public(
+            session, limit=limit, start=start, order_by="date_updated", override_schema=RecipeSummary
+        )
+        all_recipes_json = [recipe.dict() for recipe in all_recipes]
+        return Response(content=json.dumps(jsonable_encoder(all_recipes_json)), media_type="application/json")
+
+
+def clear_all_cache():
+    print("Cache Cleared")
+    get_all_recipes_user.cache_clear()
+    get_all_recipes_public.cache_clear()
+
+
+def subscripte_to_recipe_events():
+    db.recipes.subscribe(clear_all_cache)