Task Manager App

react typescript firebase

Overview

A modern task management application that helps users organize their work and boost productivity. Built with React, TypeScript, and Firebase for real-time synchronization.

Features

  • Real-time Sync - Tasks update across all devices instantly
  • Smart Organization - Projects, tags, and custom filters
  • Due Dates & Reminders - Never miss a deadline
  • Collaboration - Share projects with team members
  • Dark Mode - Easy on the eyes during late-night work sessions

Technical Stack

Frontend

  • React 18 with TypeScript
  • Redux Toolkit for state management
  • Tailwind CSS for styling
  • React Router for navigation

Backend

  • Firebase Authentication
  • Cloud Firestore database
  • Firebase Cloud Functions
  • Firebase Hosting

Key Challenges

Real-time Synchronization

One of the biggest challenges was ensuring data consistency across multiple devices. I implemented optimistic updates to make the UI feel snappy while maintaining data integrity.

const updateTask = async (taskId: string, updates: Partial<Task>) => {
  // Optimistic update
  dispatch(taskUpdated({ id: taskId, changes: updates }));

  try {
    await firestore.collection('tasks').doc(taskId).update(updates);
  } catch (error) {
    // Revert on error
    dispatch(taskUpdateFailed(taskId));
  }
};

Performance Optimization

With potentially thousands of tasks, performance was critical. I implemented:

  • Virtual scrolling for long task lists
  • Memoization with React.memo
  • Code splitting for faster initial loads
  • Service workers for offline functionality

Results

  • 500+ active users in the first month
  • 4.8/5 star rating on Product Hunt
  • 99.9% uptime over 6 months

Lessons Learned

Building this project taught me a lot about:

  • Managing complex state in React applications
  • Working with real-time databases
  • Balancing features with performance
  • User experience design principles

Future Enhancements

  • Native mobile apps (React Native)
  • AI-powered task suggestions
  • Time tracking integration
  • Calendar view
  • Advanced analytics

View Live Demo | GitHub Repository