surendra-wal

##Service to download a file from S3## ##Service to save a file to S3##

module Spree
  class AttachmentService
    attr_reader :content, :user
    attr_writer :success

    def initialize(content, key, user)

surendra-wal

Keybase proof

I hereby claim:

• I am surendra-wal on github.
• I am surendra (https://keybase.io/surendra) on keybase.
• I have a public key ASBHUO3WLTeo_n-dcim_k6UYOTFnzL9oJGfZI9UXB1sXpwo

To claim this, I am signing this object:

surendra-wal

Devise
  - Flexible authentication solution for Rails (https://github.com/plataformatec/devise)

Pundit
  - Leverage object oriented design patterns to build a simple, robust and scaleable authorization system (https://github.com/varvet/pundit)

Trailblazer
  - A High-Level Architecture to uncouple your business logic from rails (https://github.com/trailblazer/trailblazer)

Carrierwave

surendra-wal

class User < ApplicationRecord
  has_many :posts
  has_many :comments
  #  id                   :integer          not null, primary key
  #  name                 :string(50)       default("")
end

class Post < ApplicationRecord
  belongs_to :user
  has_many :comments

surendra-wal

Flight booking web application

Your client, an airline company, is looking to build an application that can facilitate the bookings of their flights. This application should be able to manage all of their flight bookings and in-flight seat allocations. Admins of this platform should be able to create flights from different origins and destinations with different seat combinations. Users (passengers) should be able to select their seats on the chosen flight upon entering a PNR number, similar to airport kiosks around the country.

Description

• Admins can create airplanes with different seat configurations(Airbus A380, Boeing 747).
• Each airplane should have its own seat configuration. A sample seat configuration is given below-

Seat configuration

Category	Seats in a row	No.of rows
First Class	3	10

surendra-wal

• Your client, a writer wants to start a blog. He wants to blog his article and open it for commenting by anyone viewinthe articles.The application should also have the ability to let the viewers to reply to a comment and further viewers can reply to that reply.This replying can be done for any of the replies and hence there is a hierarchy of replies and comments that is to be maintained.
• Also all of the comment data should not loaded at once.Only the top 5 comments should be shown and when load more is clicked the next set should be displayed. The same should be done for the replies and the replies to those replies.

Description

• Post an article
• Comment on the article
• Reply to the comment
• Reply to the reply
• Replying can be done to any comment or reply.
• Load more for comments as well as at any of the levels of replies

surendra-wal

Each of these commands will run an ad hoc http static server in your current (or specified) directory, available at http://localhost:8000. Use this power wisely.

Discussion on reddit.

Python 2.x

$ python -m SimpleHTTPServer 8000

surendra-wal

Automate API documentation with specs and CI/CD pipeline

 API documentation is very important to any application. This helps Mobile, Frontend developers and other API consumers for easy integration.

There are a couple of ways to maintain the documentation
Maintain separate repo to manage API documentation. So that they don’t commit every change of API docs into the codebase.
Use the same repo having docs or some other folder to manually update when there is a change in the APIs

It is very difficult to manually maintain the API documentation for every change. How can we automate this?

surendra-wal

Inventoty will be updated right after an newItem/updateItem/deleteItem for pre pay orders

NewItem

inventoryObj() {
    const changeInQuantity = -this.item.count;
    const inventoryItemId = this.item.priceId;
    return { changeInQuantity, inventoryItemId };
}

​

EditItem

surendra-wal

--
-- Read only 
--

-- Create a group
CREATE ROLE cents_rd_group;

-- Grant access to existing tables
GRANT USAGE ON SCHEMA public TO cents_rd_group;
GRANT SELECT ON ALL TABLES IN SCHEMA public TO cents_rd_group;