restructured code (cleaner) and also started with a docker file

Dockerfile

@@ -0,0 +1,10 @@
+FROM python:3.10-alpine
+WORKDIR /code
+
+COPY requirements.txt requirements.txt
+RUN pip install -r requirements.txt
+
+COPY . .
+
+EXPOSE 8642
+CMD ["python", "application.py"]