TinyTots — E-Commerce Platform

Overview

TinyTots is a full-stack e-commerce platform for eco-friendly children's and women's clothing. Built with React, TypeScript, and a Node.js/Express backend, it features ML-powered product recommendations, M-Pesa payment integration, and a comprehensive test suite achieving 85% coverage.

Challenges

Integrating M-Pesa's payment API reliably within a modern React/Node.js architecture
Building a recommendation engine that works meaningfully with a relatively small product catalogue
Maintaining high test coverage across both frontend and backend without slowing delivery

Solutions

Built a dedicated M-Pesa service layer with transaction queuing and webhook handling for payment confirmation
Implemented a collaborative filtering model using purchase history and browsing behaviour as recommendation signals
Set up Jest and Pytest pipelines with automated coverage reporting via GitHub Actions, enforcing an 85% threshold on PRs

Languages & Tools

React 18

TypeScript

Node.js

Express.js

PostgreSQL

Redux Toolkit

JWT

Jest

AWS

GitHub Actions

Key Stats

85%

Test coverage (Jest + Pytest)

20+

REST API endpoints

Client projects delivered