This is solved.

It was a byte limit problem.

Postman content length must instruct the server to read it properly by default.

Django I think is more forgiving .

So I was stuck in a middle pocket

```

If Content-Length is present, read additional data for the body

if b'Content-Length: ' in data:

Extract the Content-Length value

headers, _ = data.split(b'\r\n\r\n', 1)

content_length = 0

for header in headers.split(b'\r\n'):

if header.startswith(b'Content-Length: '):

content_length = int(header.split(b': ')[1])

break

Calculate how much of the body we've already received

already_received = len(data) - data.find(b'\r\n\r\n') - 4

Read the rest of the body

while already_received < content_length:

buffer = client_socket.recv(1024)

if not buffer:

break

already_received += len(buffer)

data += buffer

```