Development of Stock Report: Automated Stock Insights Tool

Onoja Okpe

Onoja Okpe

Stock Report is a web-based product that delivers real-time stock insights directly to users via email. Users simply submit their email and preferred stock tickers, and the system automatically generates a detailed stock report and sends it straight to their inbox.
The Problem
Most retail investors struggle with:
Tracking 52-week highs and lows
Monitoring stock averages
Keeping up with earnings schedules
This information is often:
Spread across multiple platforms
Not beginner-friendly
Not delivered automatically
There was a clear need for a simple, automated way to receive stock insights without logging into multiple tools.
Stock Report Sample
Stock Report Sample
The Solution
I built Stock Report, a fully automated system that:
Collects user email and stock tickers via a web interface
Fetches real-time stock data from a financial API
Processes and formats the data into a clean report
Sends the report automatically to the user’s email
Supports scheduled report delivery using cron jobs
The entire workflow is fully automated end-to-end.
My Responsibilities (What I Built)
This was a solo project, and I built everything myself:
Designed and built the full backend architecture
Designed and implemented the web interface
Integrated the backend to the frontend
Managed deployment and production configuration
Tech Stack
To support high-fidelity user interactions and a reliable backend service, I built Stock Report using the following technologies:
Backend: Node.js (TypeScript & Express) for building a scalable, secure, and high-performance API
Frontend: Next.js (TypeScript) for a fast, responsive, and SEO-friendly web interface
Email Services: Nodemailer for automated email delivery
Data Source: Yahoo Finance & Alpaca API for real-time stock data
Automation: Cron jobs for scheduled stock reports
Deployment: Render for production hosting for a fully self-built solo project
Version Control: Git & GitHub

System Architecture

User submits email + stock tickers
API validates request
Stock data is fetched from external API
Data is processed and formatted
Email template is compiled
Report is sent using SMTP
Logs are recorded for monitoring
This ensures scalability, reliability, and clean separation of concerns.
Challenges & How I Solved Them
Getting Accurate Stock Data for User-Selected Tickers
One of the biggest challenges was ensuring that stock data remained accurate and consistent across different user-selected tickers. Since users can input any valid stock symbol, there was a risk of incomplete, delayed, or mismatched data.
Solution:
I integrated reliable financial data sources (Alpaca & Yahoo Finance) and implemented validation checks to confirm ticker availability before processing. I also added proper error handling and fallback responses to ensure that only verified and complete data is used in report generation.
Matching Data Precisely to Each Requested Ticker
Another challenge was making sure that every metric (52-week high, low, average, last close, and earnings date) aligned correctly with each specific ticker without cross-mixing data.
Solution: I built a strict per-ticker processing pipeline where each stock symbol is fetched, processed, and stored independently before being added to the final report. This guaranteed data integrity and accurate mapping for every user request.

Conclusion

Stock Report demonstrates how a solo developer can build a complete, end-to-end product that delivers tangible value to users. From designing the backend API to creating the web interface, I handled every aspect of development, ensuring accuracy, reliability, and a smooth user experience.
This project reinforced the importance of data validation, performance optimization, and robust error handling while giving me hands-on experience with integrating multiple financial data sources and email delivery systems. Stock Report is a testament to the impact of well-engineered solo projects and my ability to take an idea from concept to fully functional product.
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Posted Dec 10, 2025

Built Stock Report, an automated tool for real-time stock insights via email.