System Design

System Design Concepts | API Design Concepts | Database Schema Design Concepts

Fundamentals/Building Blocks:

• Count things at Large Scale
• Rate Limiter
• Consistent Hashing
• Unique ID Generator | Sequencer
• Distributed Message Queue | Pub Sub
• Notification System
• Distributed Cache
• Key-value Store | Wide Column Store | Document Store | Graph Store
• Top K Problem (Heavy Hitters)
• Distributed Locking Service
• Distributed File Storage System | Object Store like S3 | Azure Blob
• Metrics Monitoring & Alerting Service | Distributed Monitoring
• Monitoring Server-Side Errors | Monitoring Client-Side Errors
• Distributed Search | Distributed Logging
• Distributed Task Scheduler | Shared Counters

Design a Product/Service/Feature:

• URL Modifications : URL Shortener | Pastebin
• Web Crawler
• Search Autocomplete / Typeahead Suggestion
• Social Media: Newsfeed System | Twitter | Quora | Instagram
• Chat / Messaging
• Videos / Streaming
• Cloud Storage – Google Drive | Dropbox | Microsoft One Drive | Apple iCloud 
• Location-based Service:
  • Proximity Service
  • Nearby Friends
  • Google Maps
  • Ride Sharing Uber | Lyft
  • Tinder
• Ad click Event Aggregation
• Reservation System:
  • Airbnb | Airbnb Search | Flight Reservation |
  • Movie Ticket | Ticketmaster
• Distributed Email Service: Outlook | GMail | YahooMail
• Real Time Gaming Leaderboard
• Finance / Money
  • Payment System
  • Digital Wallet
  • Stock Exchange
  • Mint.com
• Ebay (Auction System)
• Groupon (Coupon System)
• Live Streaming/Video Calls:
  • Facebook/Instagram/Twitch Live | Skype | Zoom | Microsoft Teams
• Google docs collaboration
• Music Streaming Service:
  • Spotify | Youtube Music | Apple Music | Amazon Music
• Search & Recommendations

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References:

• bytebytego + newsletter + youtube
• Mikhail Smarshchok – youtube + systemdesignthinking
• educative | highscalability