Category: Tech

Shutdown Spring boot Application Job Programatically

Posted on by Anupam Pawar in Tech

Hi Folks, Recently, one of my colleague approached me for following problem statement: He develop a spring-boot application which is running as a cron job. The job interval time say every 2 mins. The application pulls the number of records from upstream system and process each record in loop updating 5-6 transaction tables for each … Continue reading Shutdown Spring boot Application Job Programatically →

How to generate Java – Spring Code from OpenAPI YAML spec

Posted on by Anupam Pawar in Tech

Hi Folks, Lets see quickly how can generate the Spring Boot code from OpenAPI Specification i.e. YAML file. Swagger is popular tool to design the API. I'm working on some integration project and my Business Analyst shared a OpenAPI spec which describe the name of API, input parameters , data types, the output response, http … Continue reading How to generate Java – Spring Code from OpenAPI YAML spec →

AWS Certified Solution Architect Associate – 2019 SAA-C01

Posted on by Anupam Pawar in Tech

It is an immense pleasure to announce that recently I passed AWS Certified Solution Architect - Associate exam. I choose to have AWS certified because I have some working exposure on AWS while working on my some freelancing clients/project in past. AWS is also a leading cloud provider and so I decided to go for … Continue reading AWS Certified Solution Architect Associate – 2019 SAA-C01 →

ARDUINO – Sound Sensor example – IOT

Posted on by Anupam Pawar in Tech

Hello Folks, This is second article on IoT sensors today. Today I'm going to show how to connect and use sound sensor. Sound sensor used detect the sound in proximity. The Pre-requisite for this and next few articles are: 1. Raspberry Pi or Arduino Board - in simple words it a small size computer that … Continue reading ARDUINO – Sound Sensor example – IOT →

Arduino Basics – Circuit and LED Blink Hello World -IOT

Posted on by Anupam Pawar in Tech

Hello Folks, Let's start with one of my core interesting subject i.e. IoT (Internet Of Things). Today I'm going to focused on how to start, what needs to get start with basics of IoT and hands-on "Hello World" example. The Pre-requisite for this and next few articles are: 1. Raspberry Pi or Arduino Board - … Continue reading Arduino Basics – Circuit and LED Blink Hello World -IOT →

SpringBoot and RabbitMQ Messaging – AMQP

Posted on by Anupam Pawar in Tech

Today, will quickly go through Spring Boot Messaging implementation using RabbitMQ - AMQP. AMQP stands for Advanced Messaging Queuing Protocol. It is an open standard wire specification for asynchronous messaging based communication. It provides a description on how a message should be constructed. The widely used AMQP brokers are RabbitMQ, StormMQ and OpenAMQ. Brokers role … Continue reading SpringBoot and RabbitMQ Messaging – AMQP →

Angular Compilation, Deployments and Performance analysis

Posted on by Anupam Pawar in Tech

Hi Folks, This article put some focus on Angular compilation and deployment in production. We will also look into angular.json file. Angular offers 2 ways to compile application Just-in-time (JIT) : complies app in browser at runtime andAhead-of-time (AOT): compiles app at build time JIT compilation is default compilation when ng build or ng serve … Continue reading Angular Compilation, Deployments and Performance analysis →

JDK 8, JDK 11 Features and Lambdas cheat-sheet

Posted on by Anupam Pawar in Tech

Hi Folks ! I was talking to one of my friend and he told that it difficult to remember lambda functions (may be he just started hand-on) and latest changes in java versions. It motivates me to write down this article. I came across following images which shows major feature since JDK 8.0 and on-wards. … Continue reading JDK 8, JDK 11 Features and Lambdas cheat-sheet →