docs_src/header_params/tutorial003_an_py310.py

from typing import Annotated

from fastapi import FastAPI, Header

app = FastAPI()


@app.get("/items/")
async def read_items(x_token: Annotated[list[str] | None, Header()] = None):
    return {"X-Token values": x_token}
📝 Update all docs to use `Annotated` as the main recommendation, with new examples and tests (#9268) * 🍱 Add new source examples with Annotated for Query Params and String Validations * 📝 Add new docs with Annotated for Query Params and String Validations * 🚚 Rename incorrectly named tests for Query Params and str validations * ✅ Add new tests with Annotated for Query Params and Sring Validations examples * 🍱 Add new examples with Annotated for Intro to Python Types * 📝 Update Python Types Intro, include Annotated * 🎨 Fix formatting in Query params and string validation, and highlight * 🍱 Add new Annotated source examples for Path Params and Numeric Validations * 📝 Update docs for Path Params and Numeric Validations with Annotated * 🍱 Add new source examples with Annotated for Body - Multiple Params * 📝 Update docs with Annotated for Body - Multiple Parameters * ✅ Add test for new Annotated examples in Body - Multiple Parameters * 🍱 Add new Annotated source examples for Body Fields * 📝 Update docs for Body Fields with new Annotated examples * ✅ Add new tests for new Annotated examples for Body Fields * 🍱 Add new Annotated source examples for Schema Extra (Example Data) * 📝 Update docs for Schema Extra with Annotated * ✅ Add tests for new Annotated examples for Schema Extra * 🍱 Add new Annnotated source examples for Extra Data Types * 📝 Update docs with Annotated for Extra Data Types * ✅ Add tests for new Annotated examples for Extra Data Types * 🍱 Add new Annotated source examples for Cookie Parameters * 📝 Update docs for Cookie Parameters with Annotated examples * ✅ Add tests for new Annotated source examples in Cookie Parameters * 🍱 Add new Annotated examples for Header Params * 📝 Update docs with Annotated examples for Header Parameters * ✅ Add tests for new Annotated examples for Header Params * 🍱 Add new Annotated examples for Form Data * 📝 Update Annotated docs for Form Data * ✅ Add tests for new Annotated examples in Form Data * 🍱 Add new Annotated source examples for Request Files * 📝 Update Annotated docs for Request Files * ✅ Test new Annotated examples for Request Files * 🍱 Add new Annotated source examples for Request Forms and Files * ✅ Add tests for new Anotated examples for Request Forms and Files * 🍱 Add new Annotated source examples for Dependencies and Advanced Dependencies * ✅ Add tests for new Annotated dependencies * 📝 Add new docs for using Annotated with dependencies including type aliases * 📝 Update docs for Classes as Dependencies with Annotated * 📝 Update docs for Sub-dependencies with Annotated * 📝 Update docs for Dependencies in path operation decorators with Annotated * 📝 Update docs for Global Dependencies with Annotated * 📝 Update docs for Dependencies with yield with Annotated * 🎨 Update format in example for dependencies with Annotated * 🍱 Add source examples with Annotated for Security * ✅ Add tests for new Annotated examples for security * 📝 Update docs for Security - First Steps with Annotated * 📝 Update docs for Security: Get Current User with Annotated * 📝 Update docs for Simple OAuth2 with Password and Bearer with Annotated * 📝 Update docs for OAuth2 with Password (and hashing), Bearer with JWT tokens with Annotated * 📝 Update docs for Request Forms and Files with Annotated * 🍱 Add new source examples for Bigger Applications with Annotated * ✅ Add new tests for Bigger Applications with Annotated * 📝 Update docs for Bigger Applications - Multiple Files with Annotated * 🍱 Add source examples for background tasks with Annotated * 📝 Update docs for Background Tasks with Annotated * ✅ Add test for Background Tasks with Anotated * 🍱 Add new source examples for docs for Testing with Annotated * 📝 Update docs for Testing with Annotated * ✅ Add tests for Annotated examples for Testing * 🍱 Add new source examples for Additional Status Codes with Annotated * ✅ Add tests for new Annotated examples for Additional Status Codes * 📝 Update docs for Additional Status Codes with Annotated * 📝 Update docs for Advanced Dependencies with Annotated * 📝 Update docs for OAuth2 scopes with Annotated * 📝 Update docs for HTTP Basic Auth with Annotated * 🍱 Add source examples with Annotated for WebSockets * ✅ Add tests for new Annotated examples for WebSockets * 📝 Update docs for WebSockets with new Annotated examples * 🍱 Add source examples with Annotated for Settings and Environment Variables * 📝 Update docs for Settings and Environment Variables with Annotated * 🍱 Add new source examples for testing dependencies with Annotated * ✅ Add tests for new examples for testing dependencies * 📝 Update docs for testing dependencies with new Annotated examples * ✅ Update and fix marker for Python 3.9 test * 🔧 Update Ruff ignores for source examples in docs * ✅ Fix some tests in the grid for Python 3.9 (incorrectly testing 3.10) * 🔥 Remove source examples and tests for (non existent) docs section about Annotated, as it's covered in all the rest of the docs 2023-03-18 13:29:59 +01:00			`from typing import Annotated`

			`from fastapi import FastAPI, Header`

			`app = FastAPI()`


			`@app.get("/items/")`
			`async def read_items(x_token: Annotated[list[str] \| None, Header()] = None):`
			`return {"X-Token values": x_token}`