Spring Boot - Just chatterbox

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

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

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

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

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

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

Java

Spring boot: uploading and downloading file from Minio object store

If you have landed on this page means either your working with spring boot and trying to upload an file to a privately hosted minio object store server. so we know spring boot has gained popularity for its simple approach to bootstrap an application in very less time, Also minio

Java

Standardise the response of REST API in spring boot (Spring boot's ResponseBodyAdvice)

As we know know Just like Captain america's Civil War fight, so in development war between front end developers vs back end is hard to explain, usual complaint for any screw ups is API response is not consistent, this will be both burden to FE devs and BE developers, Which

Java

Another Way for Spring Request interceptors or writing an middle-ware: SpringSandwich

We usually try to Intercept HTTP requests for logging purpose or Authorisation or create an trigger for certain activity based action, typical usage is always Logging or Authorisation.While i was try to implement request logging i found a beautiful plugin called SpringSandwich. As website states its an Annoted, type-safe

Java

Intro : Getting Started with Kafka producer & consumer On Spring boot

We all know spring boot is an excellent framework where we can write web application, scheduler,command line runner most of the java based application are written in spring boot these days for simplicity and its features also readily available components we and directly include in its dependency. Also when

Java

AWS S3 with Spring Boot: Uploading and downloading file to Buckets

So if are reading this Article means your a developer and your familiar with spring boot or AWS S3, just for SEO purpose i will brief both,so you can skip the introduction part and jump into coding part.As a developer Spring boot has become my vital Framework and

Java

Spring Boot Command Line Runner Example.

Do want to look cool, and pretend to be some hacker just on terminal printing some random this,Then you can use this command line runner :-P, jokes apart, Usually when we need to work on some Shell Script which is very complicated or you perform certain repeated task clearing

Spring Boot

Exception handling in spring boot REST APIs

As we know spring boot community is growing and lot of legacy spring project is getting migrated towards spring boot, and always when we start and application we always search for better error handling ways, usually when we are java developer we tend to use try catch block to throw

Java

Spring Boot Shell : CLI app to execute your commands

A CLI command line program which take string argument from keyboard and executes the program based on input, Assume you are write an migration tool you have to copy contents of your folder to another, or you have remove temp files, convert one file format to another, or resize the

Java

Getting Started with spring boot scheduler `@Scheduled`.

A lot of times we need to run couple CORN or scheduled scripts, if your spring boot developer without having much hassle we can start Spring boot application and create task or run a scheduled jobs, so lets begin with small proof of concept to start Spring Scheduler and running

Database

Spring Boot Getting Started with Google Data Store.

Google Data Store also know Firebase Data Store is a No-SQL data base which store data as documents like MongoDB its similar like Amazon's Dynamo DB or Azure Cosmos DB provided with other cloud competitor. Spring Boot provides starter package for Google data Store so writing and saving Entities is

Java

Getting Started and Deploying Spring Boot application on Google App Engine (GAE)

So spring boot is versatile web framework and pretty much every java developer these days use this and Google app engine or GAE is a Platform as a Service and cloud computing platform for developing and hosting web applications. So using GAE will eliminate infrastructure management by auto scaling when

Tutorial

Spring Config To Disable CORS Issue In Spring Boot

We face CORS(Cross-origin resource sharing) issue specially when working with react or angular apps and running spring boot on different port, and front end app on some other to solve the CORS issue in spring boot is very easy and simple. to know Solve the issue we should know

Spring Boot

Apache Drill:Running SQL Query from Spring Boot

This Article will help to you to set up Spring boot project and connect to apace drill through Jdbc driver and perform simple query. just for introduction sake Apache Drill is Apace drill is open source Implementation of Google's Dremel system used by Google BigQuery, Initially released on second quarter

Spring Boot

File upload in spring boot Rest Controller

Spring boot is as an awesome framework where we could rapidly start our web development project with in minutes,java based configuration simplifies bootstrapping time where we could include third party library or other component into our applications. and to upload file in spring boot application is also made very

Java

Multiple Data Source in Spring boot Using Spring boot data starter(HikariCP)

Most of us use Spring Boot to rapidly start the project by using its starter packages, one such package we use to connect persistent layer is spring boot data starter, and in most scenario just by adding the dependency is sufficient, but when we have multiple data source like MySQL,

Technology

Spring Boot Native Query using entity manager and Custom result mapper

There are multiple methods to work on native queries in spring boot,like using Query annotation @ResultSet mapping annotation to map non entity Dtos, as query complexity increases code readability also decreases, i have preferred to use simple Solution and to map result to Dto for native query, for better

Technology

Custom Annotation To Handle Authorisation In Spring Boot AOP Tutorial

Overview: Creating custom annotation Creating component in spring boot Creation a configuration and middleware in spring boot Basic of Aspect and usage in spring boot What is Aspect In Spring Boot ? Aspects are cross cutting concerns like logging,security in different layers for the ease of code maintenance . Key Dependency