'Unable to access docker container Socket hang up error

I have successfully built and started the docker container, it is running perfectly, but when I try to access it [End point url 0.0.0.0:6001] I am getting a "socket hang up" error

GET http://0.0.0.0:6001/
Error: socket hang up

Request Headers
  User-Agent: PostmanRuntime/7.26.8
  Accept: */*
  Postman-Token: <token>
  Host: 0.0.0.0:6001
  Accept-Encoding: gzip, deflate, br
  Connection: keep-alive

Earlier it was working fine but when I removed the containers and images and rebuild it then I started getting this error

I am using Postman to make GET request and I also tried Web browser

Can anyone tell me whats the problem

--Update--

Docker File

Creating containers

# Create Virtual Network
$ sudo docker network create network1 
# Using custom network as there are multiple containers 
# which communicate with each other

# Create Containers
$ sudo docker build -t form_ocr:latest .
$ sudo docker run -d -p 6001:5000 --net network1 --name form_ocr form_ocr

netstat command output

$ netstat -nltp 
...
tcp6       0      0 :::6001                 :::*                    LISTEN      -

docker container inspect output

$ sudo docker container inspect <container-id>

output

docker ps output

$ sudo docker ps
CONTAINER ID        IMAGE        COMMAND             CREATED        STATUS           PORTS                    NAMES
835e8cb11eee        form_ocr     "python3 app.py"    16 hours ago   Up 40 seconds    0.0.0.0:6001->5000/tcp   form_ocr
pythondockerubuntugetpostmanphparchitecturedomain-driven-design


Solution 1:[1]

Just add this in main.ts, where you listen to the port:

await app.listen(6001, '0.0.0.0', () => console.log(`Listening on port: 6000`));

Add the '0.0.0.0' , it should work.

Solution 2:[2]

I had the same problem with fastapi container

Make sure your app is listening on 0.0.0.0 within the container

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source
Solution 1 Yadhu Krishna
Solution 2 Dhouibi iheb

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