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
  f4a2fb0c_5caf_ff55_37e0_855f49fca56e["create_item()"]
  1c33ec6d_9dd6_311d_1bf8_df673f486b93["main.py"]
  f4a2fb0c_5caf_ff55_37e0_855f49fca56e -->|defined in| 1c33ec6d_9dd6_311d_1bf8_df673f486b93
  style f4a2fb0c_5caf_ff55_37e0_855f49fca56e fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

docs_src/app_testing/app_b_py39/main.py lines 32–38

async def create_item(item: Item, x_token: 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