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🛠️
👆 💪 🚮 🛠️ FastAPI 🈸.
"🛠️" 🔢 👈 👷 ⏮️ 🔠 📨 ⏭ ⚫️ 🛠️ 🙆 🎯 ➡ 🛠️. & ⏮️ 🔠 📨 ⏭ 🛬 ⚫️.
- ⚫️ ✊ 🔠 📨 👈 👟 👆 🈸.
- ⚫️ 💪 ⤴️ 🕳 👈 📨 ⚖️ 🏃 🙆 💪 📟.
- ⤴️ ⚫️ 🚶♀️ 📨 🛠️ 🎂 🈸 ( ➡ 🛠️).
- ⚫️ ⤴️ ✊ 📨 🏗 🈸 ( ➡ 🛠️).
- ⚫️ 💪 🕳 👈 📨 ⚖️ 🏃 🙆 💪 📟.
- ⤴️ ⚫️ 📨 📨.
!!! note "📡 ℹ"
🚥 👆 ✔️ 🔗 ⏮️ yield, 🚪 📟 🔜 🏃 ⏮️ 🛠️.
🚥 📤 🙆 🖥 📋 (📄 ⏪), 👫 🔜 🏃 *⏮️* 🌐 🛠️.
✍ 🛠️
✍ 🛠️ 👆 ⚙️ 👨🎨 @app.middleware("http") 🔛 🔝 🔢.
🛠️ 🔢 📨:
request.- 🔢
call_next👈 🔜 📨request🔢.- 👉 🔢 🔜 🚶♀️
request🔗 ➡ 🛠️. - ⤴️ ⚫️ 📨
response🏗 🔗 ➡ 🛠️.
- 👉 🔢 🔜 🚶♀️
- 👆 💪 ⤴️ 🔀 🌅
response⏭ 🛬 ⚫️.
{!../../../docs_src/middleware/tutorial001.py!}
!!! tip ✔️ 🤯 👈 🛃 © 🎚 💪 🚮 ⚙️ '✖-' 🔡.
✋️ 🚥 👆 ✔️ 🛃 🎚 👈 👆 💚 👩💻 🖥 💪 👀, 👆 💪 🚮 👫 👆 ⚜ 📳 ([⚜ (✖️-🇨🇳 ℹ 🤝)](cors.md){.internal-link target=_blank}) ⚙️ 🔢 `expose_headers` 📄 <a href="https://www.starlette.io/middleware/#corsmiddleware" class="external-link" target="_blank">💃 ⚜ 🩺</a>.
!!! note "📡 ℹ"
👆 💪 ⚙️ from starlette.requests import Request.
**FastAPI** 🚚 ⚫️ 🏪 👆, 👩💻. ✋️ ⚫️ 👟 🔗 ⚪️➡️ 💃.
⏭ & ⏮️ response
👆 💪 🚮 📟 🏃 ⏮️ request, ⏭ 🙆 ➡ 🛠️ 📨 ⚫️.
& ⏮️ response 🏗, ⏭ 🛬 ⚫️.
🖼, 👆 💪 🚮 🛃 🎚 X-Process-Time ⚗ 🕰 🥈 👈 ⚫️ ✊ 🛠️ 📨 & 🏗 📨:
{!../../../docs_src/middleware/tutorial001.py!}
🎏 🛠️
👆 💪 ⏪ ✍ 🌖 🔃 🎏 🛠️ 🏧 👩💻 🦮: 🏧 🛠️{.internal-link target=_blank}.
👆 🔜 ✍ 🔃 ❔ 🍵 ⚜ ⏮️ 🛠️ ⏭ 📄.