👆 💪 ✍ 🔗 👈 ✔️ 🎧-🔗.
👫 💪 ⏬ 👆 💪 👫.
FastAPI 🔜 ✊ 💅 🔬 👫.
👆 💪 ✍ 🥇 🔗 ("☑") 💖:
=== "🐍 3️⃣.6️⃣ & 🔛"
```Python hl_lines="8-9"
{!> ../../../docs_src/dependencies/tutorial005.py!}
```
=== "🐍 3️⃣.1️⃣0️⃣ & 🔛"
```Python hl_lines="6-7"
{!> ../../../docs_src/dependencies/tutorial005_py310.py!}
```
⚫️ 📣 📦 🔢 🔢 q
str
, &
👉 🙅 (🚫 📶 ⚠), ✋️ 🔜 ℹ 👥 🎯 🔛 ❔ 🎧-🔗 👷.
=== "🐍 3️⃣.6️⃣ & 🔛"
```Python hl_lines="13"
{!> ../../../docs_src/dependencies/tutorial005.py!}
```
=== "🐍 3️⃣.1️⃣0️⃣ & 🔛"
```Python hl_lines="11"
{!> ../../../docs_src/dependencies/tutorial005_py310.py!}
```
➡️ 🎯 🔛 🔢 📣:
- ✋️ 👉 🔢 🔗 ("☑") ⚫️, ⚫️ 📣 ➕1️⃣ 🔗 (⚫️ "🪀" 🔛 🕳 🙆).
- ⚫️ 🪀 🔛
query_extractor
, & 🛠️ 💲 📨 ⚫️ 🔢q
.
- ⚫️ 🪀 🔛
- ⚫️ 📣 📦
last_query
🍪,str
.- 🚥 👩💻 🚫 🚚 🙆 🔢
q
, 👥 ⚙️ 🏁 🔢 ⚙️, ❔ 👥 🖊 🍪 ⏭.
- 🚥 👩💻 🚫 🚚 🙆 🔢
=== "🐍 3️⃣.6️⃣ & 🔛"
```Python hl_lines="22"
{!> ../../../docs_src/dependencies/tutorial005.py!}
```
=== "🐍 3️⃣.1️⃣0️⃣ & 🔛"
```Python hl_lines="19"
{!> ../../../docs_src/dependencies/tutorial005_py310.py!}
```
!!! info
👀 👈 👥 🕴 📣 1️⃣ 🔗 ➡ 🛠️ 🔢, query_or_cookie_extractor
.
✋️ **FastAPI** 🔜 💭 👈 ⚫️ ✔️ ❎ `query_extractor` 🥇, 🚶♀️ 🏁 👈 `query_or_cookie_extractor` ⏪ 🤙 ⚫️.
graph TB
query_extractor(["query_extractor"])
query_or_cookie_extractor(["query_or_cookie_extractor"])
read_query["/items/"]
query_extractor --> query_or_cookie_extractor --> read_query
🚥 1️⃣ 👆 🔗 📣 💗 🕰 🎏 ➡ 🛠️, 🖼, 💗 🔗 ✔️ ⚠ 🎧-🔗, FastAPI 🔜 💭 🤙 👈 🎧-🔗 🕴 🕐 📍 📨.
& ⚫️ 🔜 🖊 📨 💲 "💾" & 🚶♀️ ⚫️ 🌐 "⚓️" 👈 💪 ⚫️ 👈 🎯 📨, ↩️ 🤙 🔗 💗 🕰 🎏 📨.
🏧 😐 🌐❔ 👆 💭 👆 💪 🔗 🤙 🔠 🔁 (🎲 💗 🕰) 🎏 📨 ↩️ ⚙️ "💾" 💲, 👆 💪 ⚒ 🔢 use_cache=False
🕐❔ ⚙️ Depends
:
async def needy_dependency(fresh_value: str = Depends(get_value, use_cache=False)):
return {"fresh_value": fresh_value}
🔢 👈 👀 🎏 ➡ 🛠️ 🔢.
✋️, ⚫️ 📶 🏋️, & ✔ 👆 📣 🎲 🙇 🐦 🔗 "📊" (🌲).
!!! tip 🌐 👉 💪 🚫 😑 ⚠ ⏮️ 👫 🙅 🖼.
✋️ 👆 🔜 👀 ❔ ⚠ ⚫️ 📃 🔃 **💂♂**.
& 👆 🔜 👀 💸 📟 ⚫️ 🔜 🖊 👆.