https://github.com/rishiganeshe/crypto-alert-system
A high-performance cryptocurrency API that provides real-time market data, caches responses using Redis, and allows users to set price alerts with instant email notifications via SendGrid. The system also includes a WebSocket connection for continuous updates, ensuring seamless tracking.
https://github.com/rishiganeshe/crypto-alert-system
expressjs mongodb nodejs redis-cache sendgrid websocket
Last synced: 2 months ago
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A high-performance cryptocurrency API that provides real-time market data, caches responses using Redis, and allows users to set price alerts with instant email notifications via SendGrid. The system also includes a WebSocket connection for continuous updates, ensuring seamless tracking.
- Host: GitHub
- URL: https://github.com/rishiganeshe/crypto-alert-system
- Owner: RishiGaneshe
- Created: 2025-01-17T07:13:35.000Z (over 1 year ago)
- Default Branch: master
- Last Pushed: 2025-02-24T22:17:58.000Z (over 1 year ago)
- Last Synced: 2025-10-09T18:35:41.063Z (9 months ago)
- Topics: expressjs, mongodb, nodejs, redis-cache, sendgrid, websocket
- Language: JavaScript
- Homepage:
- Size: 48.8 KB
- Stars: 2
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# 🚀 Crypto Alert System – Real-Time Data, Caching & Alerts
A **high-performance cryptocurrency API** that provides **real-time market data**, caches responses using **Redis**, and allows users to set **price alerts** with instant email notifications via **SendGrid**. The system also includes a **WebSocket** connection for continuous updates, ensuring seamless tracking.
---
## 📌 Features
✅ **Real-time Cryptocurrency Price Fetching**
✅ **Optimized Performance with Redis Caching**
✅ **User-Defined Price Alerts via Email Notifications**
✅ **WebSocket Integration for Live Updates**
✅ **Secure Authentication with JWT**
✅ **MongoDB for Storing User Data & Alerts**
✅ **Asynchronous Email Dispatch for High Throughput**
---
## 🛠️ Tech Stack
- **Node.js** – Backend API
- **MongoDB** – Database for user & alert storage
- **Redis** – In-memory caching for optimized API responses
- **SendGrid** – Email notification service
- **WebSockets** – Real-time data streaming
- **JWT** – Secure authentication & authorization
- **Axios** – External API requests
---
## 📌 System Overview
The API fetches **real-time cryptocurrency prices** from an **external market data provider**.
By implementing **Redis caching**, the system optimizes response time and reduces API call overhead.
Users can set **custom price alerts**, and when a specified price is reached, an **email notification** is sent via **SendGrid**.
Additionally, a **WebSocket connection** enables users to receive continuous price updates **without needing to refresh**.
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## 🔧 System Architecture
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## 🚀 Workflow
1️⃣ **User requests crypto price data** → Data is fetched & cached in Redis
2️⃣ **User sets a price alert** → Alert is stored in MongoDB
3️⃣ **WebSocket updates** the frontend in real-time
4️⃣ **If price matches the alert, an email notification is sent**
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## 🔐 Security & Performance
✔ **JWT-based authentication** for access control
✔ **Rate limiting** to prevent excessive API requests
✔ **Redis caching** for enhanced performance
✔ **Asynchronous email processing** for high-speed notifications
✔ **Error handling & logging** for system reliability
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## 📌 Use Case Scenarios
🔹 **Crypto Traders** – Get notified when prices hit specific thresholds
🔹 **Investors** – Track market trends with real-time updates
🔹 **Developers** – Integrate WebSocket-based live pricing into applications
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