Ninad Hatkar ninadhatkar

Designing a system from scratch and ensuring its smooth first deployment involves several key phases. Here's a step-by-step approach that incorporates both system design principles and deployment processes:

1. Requirement Gathering

Identify Stakeholders: Understand who will use the system and their needs. Functional Requirements: What the system should do (e.g., user actions, input/output). Non-Functional Requirements: Performance, scalability, security, reliability, compliance. Assumptions & Constraints: External factors like budget, time, existing systems, compliance regulations, and hardware limitations.

2. High-Level System Design

Functions:

Side Effects

Side Effects are lies, promises one thing and does other hidden things unexpected changes to variable of its own class

Output Arguments

Avoid using output arguments

Command Query Separation

Function should either do something or ans something, but not both

	module.exports = function(arg){
	var localArg = arg;
	while(typeof localArg === "function"){
	localArg = localArg();
	}
	return localArg;
	};

	var curry = function(fun) {
	var argLen = fun.length;
	return (function currying(){
	var memory = Array.prototype.slice.call( arguments );
	return function () {
	var local = memory.slice();
	Array.prototype.push.apply( local, arguments );
	if(local.length === argLen) {
	result = fun.apply(null, local);
	return result;

	//Sample code of a plugin file to understand the usage of 'req.contentstack.get(key)'
	/*!
	* myplugin
	*/
	"use strict";

	/*!
	* Module dependencies
	*/
	var contentstack = require('contentstack-express');

Ninad Hatkar ninadhatkar

Functions:

Side Effects

Output Arguments

Command Query Separation

Prefer exception to returning error code