File: //usr/local/CyberCP/lib/python3.10/site-packages/fastapi/__pycache__/datastructures.cpython-310.pyc
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A file uploaded in a request.
Define it as a *path operation function* (or dependency) parameter.
If you are using a regular `def` function, you can use the `upload_file.file`
attribute to access the raw standard Python file (blocking, not async), useful and
needed for non-async code.
Read more about it in the
[FastAPI docs for Request Files](https://fastapi.tiangolo.com/tutorial/request-files/).
## Example
```python
from typing import Annotated
from fastapi import FastAPI, File, UploadFile
app = FastAPI()
@app.post("/files/")
async def create_file(file: Annotated[bytes, File()]):
return {"file_size": len(file)}
@app.post("/uploadfile/")
async def create_upload_file(file: UploadFile):
return {"filename": file.filename}
```
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