Abhishek

Welcome to my Tumblr! Here you will find items from technology, languages, and more cool stuff. Refer to http://technology.toraveabout.com/ for more details

[tony2k84]

Coding Challenge Series – Challenge 0305

Coding Challenge Series – Challenge 0305

Now that Avengers end game it out, let’s have something in same lines. Now we all know that Jarvis got replaced by Friday if we followed the end game. When Tony asks to shutdown all doors just before Hulk snaps fingers and when Tony about to die and Pepper asks for Tony’s health status. So yeah!

This is all about implementing Friday to do few tasks in your day 2 day.

Objective

To implement a…

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[tony2k84]

Coding Challenge Series - Challenge 2402

Coding Challenge Series – Challenge 2402

This challenge is about solving a simple math problem 🙂 with a twist.

Objective

Given a 20 digit number as input (integer type without decimals)

Find two numbers which when added results into the given input number.

The length of 2 numbers can be different. However additional +5 points if the two numbers have same length.

The two numbers generated should not contain the number “4” in them.

 Examp…

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[tony2k84]

Java Coding challenge series - Challenge 1903

Java Coding challenge series – Challenge 1903

This challenge is about creating a query language for extracting data from a database via API.

The query should be in form of JSON object.

Example Database Model – Customer (Mongo):

{ "firstName": "firstName", "lastName": "lastName", "mobile": "mobile", "address":{ "billing": { "address": "address", "location": { "lat": "lat", "long": "long" } }, "shipping": { "address":…

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[tony2k84]

Some tools I found useful while working on APIs

Some tools I found useful while working on APIs

Cloud services which helps..

Hey there! I normally work on full stack projects and while doing so, documentation is anyway required. I have created documentation like API spec, test case documents for APIs and it has taken quite some time creating them.

Today, let me share two tools with you that saved lot of my time at least. Hoping that it does for you too!

Problem 1 – Creating API Spec…

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[tony2k84]

How to implement offline struts actions? (Part 3 - React)

How to implement offline struts actions? (Part 3 – React)

Hello Folks. Just want to complete my series for this post by adding a react part to fetch and display the updates for a single request.

I created a simple react-app for the same. Feel free to grab the link below and check it out!

App is a simple single page application with API call every few seconds to get the latest updates.

Repo Link.

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[tony2k84]

How to implement offline struts actions?

How to implement offline struts actions?

This is part 2 of my first post. This is my way to efficiently handle offline struts actions and notify the status as GET API requests. Entire code is available on my Gitlab (@tony2k84). I have included the link at the bottom of the post.

Let’s begin.

Folder Structure

First, my folder structure. I have divided into JSPs, listeners, API, pojo, struts classes and core framework. I will describe…

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[tony2k84]

How to efficiently implement PRG and more in struts?

How to efficiently implement PRG and more in struts?

Hey there! If you have come here then you are looking for a solution on how to get long running struts action working faster and improve the user experience and have a proper flow.

With struts and actions we have below problems:

Long running struts actions don’t have any way of handling. This should however not be a practice from start but some application functionalities require the same.

User…

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[tony2k84]

How to acheive better performance with React and Forms?

How to acheive better performance with React and Forms?

Today, I am sharing with you a problem that is common with React from a performance point of view. I would not say problem but rather a development approach.

Problem Statement

React is driven from updates from action to state to view. So if we update something on the state, the DOM changes and causes a re-render. Consider a page with 10-15 inputs including text inputs, checkboxes and drop down…

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[tony2k84]

How To Setup MERN Stack On Docker?

How To Setup MERN Stack On Docker?

Recently I have been exploring docker and docker-compose and I majorly work on MERN stack for my web apps hence this blog.

This blog will give you steps how you can setup a fully connected MERN application with ReactJS front end, Express JS as backend, Mongo as database and Node as server.

Lets get started.

Pre Requisites

You already have installed docker, docker-compose

You have an editor of…

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[tony2k84]

Temporary Post Used For Theme Detection (cb45700e-b92f-484a-af37-574fdb5c8ecc - 3bfe001a-32de-4114-a6b4-4005b770f6d7)

Temporary Post Used For Theme Detection (cb45700e-b92f-484a-af37-574fdb5c8ecc – 3bfe001a-32de-4114-a6b4-4005b770f6d7)

This is a temporary post that was not deleted. Please delete this manually. (9cbfcdb9-d147-484e-9bcb-fd07ea260424 – 3bfe001a-32de-4114-a6b4-4005b770f6d7)

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[tony2k84]

How to setup an express and mongo app with docker

How to setup an express and mongo app with docker

Hello folks. I was trying to figure out how to setup express and mongodb with container and depended services. There were lot of tutorials but there were missing things here and there. I had to go through multiple sites to get a simple and short app running.

So, here is a post describing how to set it up!

I am assuming you have docker, docker-compose setup already done. I am using VSCode as…

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[tony2k84]

Integrate React in JSP Application

Integrate React in JSP Application

Hello folks!

Today, I want to share a problem that I was having at work. I have a very legacy application written in JSP using scriplets, tiles and what not they were using in thier stone age era. I wanted to use React for a set of UIs connected via routers. So I created the entire app in React which can be used in the place of certain set of JSPs.

THE PROBLEM

Now the problem was that I had to…

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[tony2k84]

How to implement background jobs in Node.js

How to implement background jobs in Node.js

Now that you are here, I believe you want to understand how to implement background jobs in Node.js. I took me some time to figure it out but I will put down the understanding and solution for you.

Problem Statement

To be able to run background jobs and take action while the main application can continue to work.

The Application

Let’s consider an application that takes request for report…

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[tony2k84]

Air SDK 21 release | HTTP Stream error

Air SDK 21 release | HTTP Stream error

Hello guys,

Adobe just released an AIR SDK version with which comes new functionalities but i ran into an issue which took me quite some time to figure out.

The issue is not observed in version 20. So I beleive that Adobe did some enablement of this issue/behavior only in Air 21.

Issue

When running application on desktop simulator which makes some HTTPService calls to any domain, it works fine.…

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[tony2k84]

XQUERY DESIGN PRINCIPLES #FOUR

XQUERY DESIGN PRINCIPLES #FOUR

Avoid unnecessary sorting XQuery is a language where most of our work revolves around parsing XML and getting data out of XML using XPath. This practice emphasize the need to avoiding unnecessary sorting and path expresssion which doesn’t seem an overhead at once but it build on quite fast when implementing large XQuery modules. Lets look at a common example: In the above example, you see we are…

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ASync Calls to Dota2/Steam APIs

ASync Calls to Dota2/Steam APIs

Hello folks.

I am currently in process of putting around a Web version of my last app for Dota2 Stats on iOS. BTW, the developing the same using Adobe Flash Buildier 4.7. While building, I notice that there are lot of features that work on a mobile app or a AIR app which actually dont on Web version.

It is actually not the problem with Flash/Adobe but instead it is a standard security issue that…

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[tony2k84]

Flex List on iOS First Scroll Flicker [Fixed]

Flex List on iOS First Scroll Flicker [Fixed]

Hello folks! As you know that I am currently working on revamping my existing iOS app for Dota2 stats to a newer and better platform, I keep on finding new issues with Flex on iOS and tend to resolve them in the process.

This is another interesting issue where a Flex standard spark list control with a slightly lager image in the list have a flicker issue when we first scroll it. I spend some time…

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