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Spring Boot Rest API deployed in AWS Lambda (Serverless) Git lab CI/CD

Just to begin AWS Lambda is server less architecture, which allows you to run the code without managing the server and cost is pay per use, usually its based on number of invocation and execution time. Usually lambda is preferred for small task or to have platform specific trigger. But

Big Data

Installing Trino (Presto) in ubuntu 20.04 LTS.

Trino was formerly known as Presto. Trino is a distributed SQL query engine, Basically this widely adapted for running Analytical queries, which can be connected by various Business intelligence tools or through JDBC drivers. So if you're new to Data Science, you would be wondering, what is the need for

Technology

Does WiFi 6 matter to the average consumer?

If your tech enthusiast probably were wondering about upgrading to WIF 6 router. So before upgrade to WIFI 6, we also need the clients to support wifi6 to take advantage of the features. Now we shall dive deeper into what WIFI 6 offers. 1) The WIFI 6 router offers higher

AWS

Sending Email Via AWS SES: JAVA Micronaut

Well we all are familiar with the AWS Cloud services, one such cloud service I often use is SES, its called as Simple Email Service, As name suggest this is used for sending bulk emails. SES is flexible and cost effective, flexible in the sense like can be connected through

Spring Boot

Adding transaction id or trace Id for each request in spring boot for tracing the log easily.

As most of us use spring boot as our got to framework for web development. And Also we are rapidly moving towards the Micro Services, One concern is to effectively monitor and trace the Application's Log. So In this distributed era we adapted to have Transaction Id/Trace ID to

Galaxy Watch 3: Humble user review & connecting with Jio / Airtel carrier

So by the way before judging me this is my first review, and I am a Samsung user from a long time, So this does not mean I will be biased, This just my perspective on the device. Unboxing Experience: Simple white elegant box just by opening I could see

AWS

AWS S3 & Micronaut: File upload and download using Java

I started learning new framework called Micronaut, Micronaut is lightweight Java web framework, Which is cloud native in nature which support Java, Groovy and Kotlin and main advantage of the micronut its light weight, has low memory footprint and fast, one of the way it achieve its Fast nature and

Java

File Upload And Download Inside Micronaut Http controller Java.

I am learning new framework called Micronaut. And I wanted to know how to upload the file and modify the configuration to allow multipart data, So I began googling and consolidate my learning in to single blog. This article helps you to upload a file and download a file from

Micronaut

Sending and Receive Message in AWS SQS Using Micronaut Java

Amazon has SQS is fully managed Message Queuing Service, This is designed to ease the exchanging messages between two systems. And this might helps to decouple the the system. For example to trigger another lambda function which preforms some clean up task in the background or Scrape some data. reason

Micronaut

Enabling CORS in Micronaut using Filters

For a beginner CORS is a cross site resource sharing, Means when the request is sent from a browser, communication should happen with in the same domain. But now we are disturbing almost everything in this era, So there is always a chance that we might Host JS in one

Java

Custom Annotation To Handle Authorisation In Micronaut AOP Tutorial

Overview:Creating custom annotationCreating component in MicronautCreation a configuration and middleware(Interceptor) in MicronautBasic of Aspect and usage in MicronautMicronaut is the web framework, Its features similar to spring boot also this framework is light weight, low memory foot print, and quick start up time, as we know solve cold

Cloud

AWS Lambda APIs using Micronaut along with basic CI & CD (Gitlab CI) steps.

Just to begin AWS Lambda is server less architecture, which allows you to run the code without managing the server and cost is pay per use, usually its based on number of invocation and execution time. Usually lambda is preferred for small task or to have platform specific trigger. But

Java

Spring Boot: Uploading and download a file from GCP Storage (Google Cloud Storage)

Hello fellow developer, if you have landed on this page by search that means my SEO is working and google official documentation is not yet updated for the new approach. or if you have visited just to learn let me add few more details about GCP and spring boot. Google

Android

How to write custom reusable `App Bar` Widget in Flutter

I have a habit of developing utility apps for my own use, And I was old school so preferred jQuery and Bootstrap for developing until flutter came along, So I started developing the app which I used more frequently. Its a very simple app which has the collection of articles

Android

Install Flutter on Windows 10

Flutter is a hybrid application development framework developed and maintained by Google. Last time when I wrote an installation guide, Flutter only supported iOS and Android application. But now Flutter supports Web apps and Desktops Apps supporting Windows, Linux and Mac platform, Btw these features are currently in beta and

Java

Ehcache: Java Based Cache in Spring Boot

Most of the time, when we need to retrieve the same piece of data repeatedly from a data store, we generally try to cache the data to an in-memory cache. One such library we use when our data is lightweight is Ehcache. In this article, we shall see how to

Flutter

A simple way to upload a file to server from the flutter web app.

There might be a lot of articles about the same topic of uploading the file to a server from a flutter web app. But the approach I am taking is to use readily available plugins can concentrate on uploading the file by avoiding a lot of boilerplate code. Also if

Spring Boot

Spring boot: uploading and downloading file Azure Blob Store using rest API

If you have landed on this page means either your working with spring boot and trying to upload a file to Azure blob storage. so we know spring boot has gained popularity for its simple approach to bootstrap an application in very less time, Also Azure is gaining a lot

Technology

The Brief Opinion on Using Android Apps with windows `Your phone` app

Maybe everyone was excited to see running android apps on windows. The first thing that came to my mind was the baby step towards forming an ecosystem with pc and cellular devices. So I was excited to check The 'Your Phone App' with my note device. I immediately updated my

Spring Boot

Continuous deployment of spring boot Apps on Azure App service using GIT lab CI

Continuous deployment is an automated process of releasing production code to the desired infrastructure, Only after Continuous Integration pipelines are satisfied. CI (Continuous Integration) is making sure every piece of code is tested & validated in an automated fashion whenever code pushed to the shared repository. The process of CI

How to avoid writing CRUD operations in every service: Spring Boot

As an API developer, we write the CRUD API majorly, but writing CRUD operations is easy and straightforward which practically takes seconds to copy-paste and refactoring the copied across services, But the project codebase has unwanted boilerplate code in logic part and Unit testing code as long as we are

Scala

Factory Pattern In Scala

A Factory pattern or Factory method pattern is very common design pattern used in software development,its is classified as creational pattern. which solves the problem of creating the instance of the class without actually specifying exact class need to be created.this pattern is part of Gang of four

Scala

Scala build tools (sbt) : Getting started for testing and building

As we know Scala as language is getting popular in data science or general programming field, for its functional programming traits as well object oriented behaviour also Scala runs on JVM so we can mix Scala code in java or java code with Scala project also lot of plugin or

Big Data

POS tagging a sentence in Scala using Spark NLP.

POS tagging is the process of marking up a word in a corpus to a corresponding part of a speech tag, based on its context and definition. This task is not straightforward, as a particular word may have a different part of speech based on the context in which the

Scala

Difference between object and class in Scala.

Objectso in scala object is a singleton instance of the class, lets explain with small snippet. object test { def addPlusOne(a:Int) = a+1; } So when your calling the function instance is already created you can just use like static functions of class in java i.e `test.addPlusOne(2)