Social.zip

Social Media App (2022–2023)

TikTok

Description

A cross-platform (web, Android, iOS) social media app that supports creation of webpages containing videos, images, and stylized text.

Key Features

• Collaborative filtering
• Friend recommendation
• Efficient searching using vector similarity
• Infinite scrolling using content windowing
• GIFs and PNGs in profile
• All postable/continuable image forms (images, HTML, seeded videos)
• Infinite comments
• Private signed images
• Blocking features
• Private accounts / friends
• Name changing and unique usernames
• Emailing texting

Technology Stack

The app is built with a modern and scalable tech stack:

• TypeScript – Type-safe codebase for maintainability and reliability
• Node.js – Backend using Express and GraphQL to handle requests
• GraphQL – Maintainable, readable queries
• AWS DynamoDB – Scalable NoSQL database for fast and reliable storage
  • High availability storage with secure signing (S3)
  • Route 53 for DNS management
  • IAM for least-privilege access
  • SNS for email related queries (2FA, etc)
• Google Cloud Storage (GCS) – Horizontal scaling for servers
• React Native – Cross-platform mobile app development
• VectorDB (Weaviate) – Semantic search and vector embeddings
• OAuth Passport – Authentication via Google, Apple, and Facebook
• Cohere – Tokenization and natural language processing
• Neo4j Graph Database – Social graph and relationship modeling (friend recommendation, faster queries)
• Mixpanel – For usage analytics

Demo

TODO