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How to ensure that a block of code can be executed only by one request at a time in FastAPI

See original GitHub issue

First Check

I added a very descriptive title to this issue.
I used the GitHub search to find a similar issue and didn’t find it.
I searched the FastAPI documentation, with the integrated search.
I already searched in Google “How to X in FastAPI” and didn’t find any information.
I already read and followed all the tutorial in the docs and didn’t find an answer.
I already checked if it is not related to FastAPI but to Pydantic.
I already checked if it is not related to FastAPI but to Swagger UI.
I already checked if it is not related to FastAPI but to ReDoc.

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I commit to help with one of those options 👆

Example Code

no code

Description

How to ensure that a block of code can be executed only by one request at a time in FAST API

I am implementing post and calling some external tool but it takes one request at a time.

Operating System

Linux

Operating System Details

No response

FastAPI Version

0.70.0

Python Version

Python 3.8.5

Additional Context

No response

Issue Analytics

State:
Created 2 years ago
Comments:8 (2 by maintainers)

Top GitHub Comments

1reaction

MatthijsKokcommented, Jan 21, 2022

What might be the best solution is to make sure that nothing is async in your api route, and then run the server with only one worker. That way you ensure that requests wait for eachother.
uvicorn --workers 1

0reactions

ycdcommented, Jan 21, 2022

Read the documentation: https://fastapi.tiangolo.com/advanced/custom-request-and-route/

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