Dynamic Pricing Service for EV Charging Stations (with AWS CDK)

This project is a showcase demonstrating how dynamic pricing can be implemented and managed for electric vehicle (EV) charging stations. The service allows for real-time price adjustments based on various factors and integrates with a charging backend for billing purposes.

Overview

This project showcases a dynamic pricing system designed for EV charging stations. It allows for the management and real-time adjustment of prices at charging stations, which are then processed through a charging backend system for accurate billing.

Key Features:

• Dynamic Pricing: Prices at charging stations can be adjusted in real-time based on demand, time, or other configurable parameters.
• Session Management: Start and stop charging sessions while tracking the associated pricing.
• Integration with Charging Backend: The service is designed to integrate with a backend system responsible for processing and billing based on the dynamic prices.

The architecture includes:

• DynamoDB Tables: Used to store session data and charge logs.
• Lambda Functions: Handle the logic for session management and dynamic pricing.
• API Gateway: Exposes RESTful API endpoints for interacting with the system.
• RDS (PostgreSQL): Manages dynamic pricing data and validation.

Prerequisites

• AWS CLI
• AWS CDK
• Node.js
• An AWS account with necessary permissions to deploy resources
• A PostgreSQL database for dynamic pricing

Usage

API Endpoints:

• GET /prices/{connectorId}: Retrieves the price for a specific connector ID.
• POST /startsession: Starts a new charging session.
• POST /stopsession: Stops a charging session.
• POST /engine: Resolves and applies dynamic pricing.

These endpoints are exposed via API Gateway and are backed by the respective Lambda functions defined in the CDK stack.