uvicorn url is not working locally. http://127.0.0.1:8000

[venkataseetharaman]

First Check

• I added a very descriptive title here.
• I used the GitHub search to find a similar question 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.

Commit to Help

• I commit to help with one of those options 👆

Example Code

from fastapi import FastAPI
import uvicorn
import logging

app = FastAPI()
logging.info('Created FASTAPI instance')

@app.get("/")
async def root():
    return {"message" : "Hello World!!!"}
logging.info('Method is called')

Description

I am new to FASTAPI & Python development. Created my first FASTAPI with above code.
Tried uvicorn main:app --reload to run the uvicorn server. It has started without any error.
Upon hitting the url http://127.0.0.1:8000 in web browser( Chrome & Postman), it's been spining and no results.

Options tried

1. Added inbound rule in firewall
2. I have stopped the firewall and anti virus.

Nothing worked for me

Operating System

Windows

Operating System Details

No response

FastAPI Version

0.1.0

Pydantic Version

1

Python Version

3.9

Additional Context

No response

[hockeyiscool19]

Yes, I have tried the same! Postman did not work for me either, but FastApi includes its own user interface to test endpoints, Try http://127.0.0.1:8000/docs#/. If you use this url, you will see the different routes. Click "try it out." Then click execute. LMK if this works!

[venkataseetharaman]

Thanks for the response. I was not able to browse this URL as well. What i did is, I installed Python 3.12 version and tried. it worked for me. I was using 3.9 version earlier.

[hockeyiscool19]

Great! Let's gooo.

[hasansezertasan]

Can you please try visiting http://localhost:8000 instead of 127.0.0.1?

I'm on a windows machine either, and 127.0.0.1 doesn't work for me sometimes, IDK why, never wondered. Just use localhost...

[noorzaibchohan]

Thankyou Mate. This works but not all time. People can refer to the Github Co-Pilot for potential errors in codespace causing server errors. for me it was just a line change and everything worked fine.