Simple JSON POST dumper

Dockerfile

FROM python:3.9-slim-buster

WORKDIR /app

COPY requirements.txt requirements.txt
RUN pip install --no-cache-dir -r requirements.txt

COPY main.py . 

EXPOSE 8080

CMD ["python", "main.py"]

main.py

from http.server import BaseHTTPRequestHandler, HTTPServer
import json
import logging
import sys

logging.basicConfig(level=logging.INFO, format='%(asctime)s - %(levelname)s - %(message)s')


class JSONRequestHandler(BaseHTTPRequestHandler):
    def do_POST(self):
        content_length = int(self.headers['Content-Length'])
        post_data = self.rfile.read(content_length)

        try:
            json_data = json.loads(post_data.decode('utf-8'))

            # Pretty-print JSON with syntax highlighting using Rich
            syntax = json.dumps(json_data, indent=2)
            print(syntax)

            self.send_response(200)
            self.send_header('Content-type', 'text/plain')
            self.end_headers()
            self.wfile.write(b"JSON received and logged\n")

        except json.JSONDecodeError:
            logging.error("Invalid JSON data received")
            self.send_response(400)
            self.send_header('Content-type', 'text/plain')
            self.end_headers()
            self.wfile.write(b"Invalid JSON\n")

def run(server_class=HTTPServer, handler_class=JSONRequestHandler, port=None):
    if port is None:
        port = 8080
    else:
        try:
            port = int(port)
        except ValueError:
            logging.error("Invalid port number: %s", port)
            return

    server_address = ('', port)  # Empty string means listen on all interfaces
    httpd = server_class(server_address, handler_class)
    logging.info('Starting server on port %d...', port)
    httpd.serve_forever()

if __name__ == "__main__":
    if len(sys.argv) > 1:
        port = sys.argv[1]
    else:
        port = None

    run(port=port)

requirements.txt