write() — fastapi Function Reference

Architecture documentation for the write() function in datastructures.py from the fastapi codebase.

Function python FastAPI Responses called by 1

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FastAPI→ Responses→ write() — fastapi Function Reference

Dependency Diagram

graph TD
  bd22fc1b_4f68_64ff_378d_a081f71b63c3["write()"]
  e7f7f9d0_3e61_b391_e95f_2212c3046b08["UploadFile"]
  bd22fc1b_4f68_64ff_378d_a081f71b63c3 -->|defined in| e7f7f9d0_3e61_b391_e95f_2212c3046b08
  2070de0b_f99d_ce4d_bb36_162d825290f1["test_upload_file()"]
  2070de0b_f99d_ce4d_bb36_162d825290f1 -->|calls| bd22fc1b_4f68_64ff_378d_a081f71b63c3
  style bd22fc1b_4f68_64ff_378d_a081f71b63c3 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

fastapi/datastructures.py lines 68–86

    async def write(
        self,
        data: Annotated[
            bytes,
            Doc(
                """
                The bytes to write to the file.
                """
            ),
        ],
    ) -> None:
        """
        Write some bytes to the file.

        You normally wouldn't use this from a file you read in a request.

        To be awaitable, compatible with async, this is run in threadpool.
        """
        return await super().write(data)