Git and GitHub Notes

Essentipython manage.py runserveral Git Commands

1. Initialize Git Repository git init

2. Add Remote Repository -->

git remote add origin https://github.com/your-username/your-repo.git 3. # Stage Files for Commit git add . 4. # Commit Changes git commit -m "Initial commit" 5. # Push Changes to Remote Repository git push -u origin master 6. # Pull Changes from Remote Repository git pull origin master 7. # check status git status

Handling Large Files

1. Install Git LFS

git lfs install 2. # Track Large Files with Git LFS git lfs track "path/to/large/file" 3. # Commit the .gitattributes File git add .gitattributes git commit -m "Track large files with Git LFS"

example of initializing git pushing changes e.gREADME.md

git init git add README.md git commit -m "first commit" git branch -M main git remote add origin https://github.com/PeterKarym/TradeSphere.git git push -u origin main

Virtual environment activate

.\venv\Scripts\activate

deactivate Virtual environment

deactivate

Virtual environment name

C:\Users\hp\OneDrive\Desktop\DAPP\backend2\venv

Run Migration Commands

Create Migrations: python manage.py makemigrations Apply Migrations: python manage.py migrate

To start your Django development server

PS C:\Users\hp\OneDrive\Desktop\DAPP\backend2> .\venv\Scripts\activate python manage.py makemigrations (ensure connection with the database) Start the server : python manage.py runserver browser at http://127.0.0.1:8000/

To Access the Django Admin Interface(superuser)

.\venv\Scripts\activate Start the server : python manage.py runserver Access the admin interface : http://127.0.0.1:8000/admin/ Username: PeterKarimi Password: Pk18230161@ Email: peterkarym@gmail.com

To start your React frontend server

PS C:\Users\hp\OneDrive\Desktop\DAPP\frontend2> npm start

To manually establish a websocket connection

(venv) PS C:\Users\hp\OneDrive\Desktop\DAPP\backend python websocket_client.py

PostgreSQL 17 Server

Password:Karimi@254 db name: derivapp_db db username: postgres db host: localhost

Redis is a Standalone Server running on the local computer to handle communication for Django Channels.

Redis will manage the state and message passing for WebSocket connections. This means that when a WebSocket message is received(eg Signals from EA), Redis ensures that it is correctly routed and handled by the appropriate consumer.

To start Redis in the command prompt or VS terminal

Path: cd "C:\Program Files\Redis-7.4.2-Windows-x64-msys2" .\redis-server.exe --port 6380

Check Port Usage in the command prompt you will get its PID(Process id)

          : netstat -ano | findstr :6380

Terminate the Redis process using the PID(e.g PID IS 256)

          :taskkill /PID 256 /F

To Start Daphne(Daphne to runs your ASGI application):

.\venv\Scripts\activate daphne -p 8080 derivapp.asgi:application

Test WebSocket Connection with wscat (eg trading websocket url) No virtual environment:

wscat -c ws://localhost:8080/ws/trading/ test with this message: {"signalType": "buy", "price": 1.6789}

To confirm if Redis is running in its respective port:

 netstat -an | findstr :6380

To confirm if Daphne is running in its respective port:

 netstat -an | findstr :8080

To Start the Redis service using NSSM:

Press Win + X and select Windows PowerShell (Admin) : & "C:\nssm\win64\nssm.exe" start Redis

monitor the status of the Redis service using NSSM or the Services GUI to ensure it remains running:

          & "C:\nssm\win64\nssm.exe" status Redis

Using Redis CLI to check if Redis is running:

          .\redis-cli -p 6380 ping

Use NSSM commands to stop and start(Restart) the Daphne service:Administrator command promt

        nssm stop daphne
        nssm start daphne

To insert signal into the database

.\venv\Scripts\activate python insert_signals.py

How to initiate Django shell

.\venv\Scripts\activate python manage.py shell