REST assignment

rest_assignment.md

Day 2

HTML & CSS

• HTML - Hyper Text Markup Language
• CSS - Cascading Style Sheets

REST

• REpresentational State Transfer

• Architectural pattern for developing HTTP APIs.

• REST provides a standardized way to interact with HTTP based APIs.

• A REST url (or endpoint) takes the following shape (or form):

    http(s)://domain_name/{resource}

  Let's break this down:

  • http(s):// indicates the protocol
  • domain_name is the domain (for example facebook.com) on which the resource exists.
  • resource is the thing that the API exposes. For example, in https://facebook.com/users, users is the resource.

• Convention

  • GET a listing of a resource.

      GET {domain_name}/{resource}

    This will give us the list of users

      GET https://facebook.com/users

  • POST - Create a new resource. POST is used to create a new entry.

      {domain_name}/{resource}

    This will create a new user

      POST https://facebook.com/users

  • GET a specific resource.

      {domain_name}/{resource}/{resource_id}

    Ex: This will give us details about a single user with ID 1

      GET https://facebook.com/users/1

  • PUT edits a resource. PUT is used to modify / update the details of a specific resource

    PUT http(s)://{domain_name}/{resource}/{resource_id}

  Ex: This will update the details of the user with ID 1

    PUT http(s)://facebook.com/users/1`

• Nested resources - A nested resource is something like posts and comments. A post can have many comments (think Facebook). We follow the following convention for nested resources:

  http(s)://{domain_name}/{resource}/{resource_id}/{sub_resource}

Ex: This will give us all the comments that are under posts with ID 1

  http(s)://facebook.com/posts/1/comments

Write the HTTP Method and URL for getting a list of posts from facebook.

  // TODO

Write the HTTP Method and URL for fetching details of single post

  // TODO

• GET all comments for a specific post

  // TODO

• POST a new comment for a post

  // TODO

• GET a specific comment for a post

  // TODO

Bash commands and Bash scripting

• Original scripting shell was called Bourne Shell (sh), created by Stephen Bourne
• Bash is an improvement over sh - Bourne Again
• Bash is used to run commands on the terminal / command line