vasanthk

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

1. Clarify and agree on the scope of the system

• User cases (description of sequences of events that, taken together, lead to a system doing something useful)
  • Who is going to use it?
  • How are they going to use it?

omarstreak

import Kefir from 'kefir';

class ThreadDataManager {
  constructor(){
    Kefir.stream(emitter => {this._emitter = emitter; return () => null});
    this._threadData = {}; //map from threadID to thread data
  }
  
  setThreadData(threadID, data){
    this._threadData[threadID] = data;