perf(dependencies): skip doing any work when sub dependant is already…

… cached
tiangolo · Mar 20, 2024 · 8bb7d6d · 8bb7d6d
1 parent 957845d
commit 8bb7d6d
Showing 1 changed file with 10 additions and 0 deletions.
diff --git a/fastapi/dependencies/utils.py b/fastapi/dependencies/utils.py
@@ -549,6 +549,16 @@ async def solve_dependencies(
  sub_dependant.cache_key = cast(
  Tuple[Callable[..., Any], Tuple[str]], sub_dependant.cache_key
  )
+
+ # If the dependant is already cached, skip doing any work here
+ if (
+ sub_dependant.use_cache
+ and sub_dependant.cache_key in dependency_cache
+ and sub_dependant.name is not None
+ ):
+ values[sub_dependant.name] = dependency_cache[sub_dependant.cache_key]
+ continue
+
  call = sub_dependant.call
  use_sub_dependant = sub_dependant
  if (