create_item() — fastapi Function Reference

Architecture documentation for the create_item() function in main.py from the fastapi codebase.

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FastAPI→ Applications→ create_item() — fastapi Function Reference

Dependency Diagram

graph TD
  2367ec2f_2ac3_55ba_d92c_521be03da593["create_item()"]
  b3808b19_7a5a_7f61_7114_41a3431e487c["main.py"]
  2367ec2f_2ac3_55ba_d92c_521be03da593 -->|defined in| b3808b19_7a5a_7f61_7114_41a3431e487c
  style 2367ec2f_2ac3_55ba_d92c_521be03da593 fill:#6366f1,stroke:#818cf8,color:#fff

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Source Code

docs_src/app_testing/app_b_an_py39/main.py lines 32–38

async def create_item(item: Item, x_token: Annotated[str, Header()]) -> Item:
    if x_token != fake_secret_token:
        raise HTTPException(status_code=400, detail="Invalid X-Token header")
    if item.id in fake_db:
        raise HTTPException(status_code=409, detail="Item already exists")
    fake_db[item.id] = item.model_dump()
    return item