BigData_Assignment3

Exchange Rate Data Processor and Visualizer

Overview

This application is designed to fetch exchange rate data from the ExchangeRate-API, store it in Redis, and perform various operations such as aggregation, search, and chart generation. It demonstrates the use of object-oriented programming principles in Python to structure the application in a modular and reusable way. The application includes a prompt section where users can enter the currency code they want to view.

Features

• Fetches exchange rate data from the ExchangeRate-API.
• Stores the data in Redis for persistent storage.
• Aggregates the data to count the number of currencies available.
• Allows users to search for the exchange rate of a specific currency.
• Generates a bar chart to visualize the exchange rates of the top N currencies.

Requirements

• Python 3.x
• Redis server
• requests library for making API requests.
• matplotlib library for generating charts.
• redis-py library for interacting with Redis.

Usage

1. Update the db_config.py file with your Redis server configuration.
2. Run the main.py script to fetch the exchange rate data, store it in Redis, and perform the operations:

   python main.py

3. When prompted, enter the currency code you want to view (e.g., EUR, GBP, JPY).

Files

• data_processor.py: Contains the DataProcessor class for fetching data from the API.
• redis_processor.py: Contains the RedisProcessor class for storing and retrieving data in Redis.
• aggregator.py: Contains the Aggregator class for performing aggregation operations on the data.
• searcher.py: Contains the Searcher class for searching specific data from the stored data.
• chart_generator.py: Contains the ChartGenerator class for generating charts based on the data.
• main.py: The main script that uses the above classes to fetch, store, and process the data.
• db_config.py: Configuration file for Redis connection settings.

Notes

• Ensure that your Redis server is running before executing the script.
• You can modify the main.py script to change the query or perform different operations based on your requirements.

License

This project is open-sourced under the MIT License.