sarathkumar6

Thoughts on JSON Patch

Introduction

JSON Patch is a media type developed to take advantage of the HTTP PATCH method. It includes operations such as add, remove, replace, copy, move, and test. Below is a first reaction to reading the specification. Note that the author has not attempted a real implementation of JSON Patch, which would certainly provide a more thorough analysis and different perspective.

Benefits

1. The JSON Patch specification provides an actual media type to use with PATCH. This enables the PATCH method to be usable across client-server implementations. It's a real attempt at solving the partial update problem in Web APIs.
2. JSON Patch documents allow shallow and nested object updates.

sarathkumar6

// Implementation in ES6
function pagination(c, m) {
    var current = c,
        last = m,
        delta = 2,
        left = current - delta,
        right = current + delta + 1,
        range = [],
        rangeWithDots = [],
        l;

sarathkumar6

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?