7,304 questions
Score of -3
1 answer
92 views
How to extend FastAPI's OAuth2PasswordBearer logout feature?
I'm using FastAPI for my backend and I already have /login and /logout endpoints for my frontend to talk to and I'm also using fastapi's OAuth2PasswordBearer (that points to a debug endpoint) to use ...
- reputation score 4
Score of -3
2 answers
122 views
How to solve the problem with None async engine in sqlalchemy before closing engine?
I have simple backend async application on fastapi and sqlalchemy.
Here code of my application:
main.py:
import uvicorn
import asyncio
from fastapi import FastAPI
from src.web.main_web_handler import ...
- reputation score 35
Score of 0
1 answer
153 views
FastAPI event loop blocked by Scikit-Learn Joblib thread-pool exhaustion during concurrent async inference
I am deploying a Random Forest model using FastAPI. Because Scikit-Learn models are synchronous and CPU-bound, I am offloading the inference to asyncio.get_running_loop().run_in_executor() to prevent ...
- reputation score 41
Score of 3
0 answers
176 views
FastAPI returning "Out of range float values are not JSON compliant" with Pandas NaN values
I am building a FastAPI endpoint that reads data, processes it into a Pandas DataFrame, and returns it as a JSON response.
However, my dataset contains missing data (NaN). When I convert the DataFrame ...
- reputation score 41
Tooling
1
vote
0
replies
88
views
What is a scalable alternative to embedding-based skill canonicalization in an ATS system
I am building an Applicant Tracking System (ATS) where candidates upload resumes and recruiters post job descriptions. The goal is to match candidates to relevant jobs.
Currently, my matching engine ...
- reputation score 1
Tooling
2
votes
2
replies
79
views
Is anaconda best for Django and web dev packages?
I am learning machine learning and deep learning using miniconda environment on native python. Now I am looking to learn Django and other backend packages like fastapi and tornado. Is conda enough for ...
- reputation score 1
Best practices
1
vote
3
replies
111
views
About the Pythonic code on FastAPI and Flask back end
I've done some jobs with the FastAPI or Flask on the backend, but in both situations there was no type of layering of the responsabilities. Like everything was done into the controller layer right ...
- reputation score 21
Score of 1
0 answers
120 views
How to correctly compare two encoded jwt refresh tokens
I using jwt in fastpai app, and when I create access and refresh tokens on user login I also create user session for specific user id in database, so as I understood I need to encrypt refresh token ...
- reputation score 105
Score of -1
1 answer
141 views
FastAPI Docker container ignores SIGTERM — pod takes 30s to terminate and lifespan shutdown never runs [closed]
I containerized a FastAPI service (myapp, Python 3.12, port 8080) and deploy it to a local k3d cluster. The app works, but every kubectl delete pod / rolling update takes ~30 seconds, and my FastAPI ...
- reputation score 27
Score of -1
1 answer
68 views
FastAPI returns 422 Unprocessable Entity on POST from Next.js fetch despite matching Pydantic model [duplicate]
I'm sending a POST request from a Next.js 14 client to a FastAPI endpoint. The request body matches my Pydantic model exactly, but I keep getting a 422 Unprocessable Entity instead of a 200.
Expected: ...
- reputation score 1
Score of 0
1 answer
94 views
FastAPI StreamingResponse buffers LLM tokens until completion when consumed by Next.js fetch. How can I fix this? [duplicate]
I am building an AI chat feature with a Next.js frontend and a FastAPI backend.
The backend receives tokens from an LLM provider and returns them to the browser using StreamingResponse. My goal is for ...
- reputation score 9
Best practices
0
votes
1
replies
154
views
FastAPI Controller/Service/Repo architecture routing with dependency injection
I'm mostly a C# and React dev working on a new project using Python with FastAPI to build the back-end for a tool.
I originally had logic like this in my `main.py` for setting up the fastapi app:
...
- reputation score 203
Score of 0
0 answers
104 views
FastAPI + Azure Functions -> intermittent 401 Unauthorized
I have an Azure Function (with a Flex Consumption plan) using FastAPI, and it has been working well for the last month.
Recently (starting last week), without any apparent reason, we started getting ...
- reputation score 21
Advice
0
votes
1
replies
104
views
Python-Chess, Stockfish, FastAPI, React Stream Continuous Engine Evaluation
So, I am building a chess app where the frontend using the Chess.js library parses a pgn file I've downloaded from Chess.com. I'm storing a moveList and a moveIndex. When the moveIndex changes, a new ...
- reputation score 49
Score of 0
1 answer
88 views
FastAPI Response is omitting fields from nested objects when data exists
I have a FastAPI get endpoint that, to put it shortly, gets information from a database, compiles it into an object with two fields that are lists of different objects, then returns the parent object. ...
- reputation score 22
