zeropanda / reddit-sentiment

VADER Reddit Sentiment analysis using Dash in python

Reddit Sentiment Analysis Dash Application

1st command pmt type - python Reddit_Stream.py
2nd command pmt type - python app.py runserver

Live-streaming sentiment analysis application created with Python and Dash, hosted at sentiment-reddit.herokuapp.com.

Repo Contents:

• app.py - The main front-end application code. Contains the dash application layouts, logic for graphs, interfaces with the database...etc. If you want to clone this and run it locally, you will be using the python app.py runserver
• reddit_stream.py - This should run in the background of your application. This is what streams threads, comments, replies from subreddit /worldnews, storing them into the postgresql database, which is what the app.py file interfaces with.
• db-truncate.py - A script to truncate the infinitely-growing postgresql database.

Quick start

• Clone repo
• install requirements.txt using pip install -r requirements.txt
• Create an API on reddit.
• Fill in your Reddit API credentials to reddit_stream.py.
• Setup postgresql credentials. or to run locally on sqlite database, replace psycorg2.connect(... with conn = sqlite3.connect("reddit.db").
• Run reddit_stream.py to build database
• You might need the latest version of sqlite.
• Run app.py to run the app.
• Consider running the db-truncate.py from time to time (or via a cronjob), to keep the database reasonably sized. In its current state, the database really doesn't need to store more than 2-3 days of data most likely.

Credits

The most credit goes to Sentdex who inspired me to create this app.