Java backend application using Spring-security to implement JWT based Authentication and Authorization

AWS Playground: repository for tracking projects while learning AWS.

Rate limiting private APIs with Token Bucket Algorithm employing Bucket4J, Redis and Spring Security.

Spring-boot application integrating with Firestore and Firebase Authentication to build a CRUD application.

Backend application leveraging redis cache to reduce network calls and improve latency.

Backend application using Testcontainers for Integration Testing AWS S3, Azure Blob Storage, Kafka, MySQL, Egress calls including Chaos testing and Redis.

Apache Camel Integration with Spring-boot and Kafka with one application serving as a producer and the other consuming the messages

Kafka integration with Java Spring-boot with one application serving as a producer and the other consuming the messages

POC to demonstrate automation of entity fields such as created_at, created_by, updated_by using JPA @Embedded, @Embeddable and ThreadLocal

POC to demonstrate storing values of all checkboxes displayed on an UI component, in a single column of a table instead of creating a separate table and mapping each checkbox as a column

Representational State Transfer + Structured Query Language(RSQL): Demo application using RSQL parser to filter records based on provided condition(s)

Search API with spelling correction using ngram-index algorithm: implementation using Java Spring-boot and MySQL ngram full text search index

Budget Proof Key for Code Exchange (PKCE) implementation using Java Spring-boot

Email based 2FA implementation using Spring-boot and Java-mail API

POC showing how to divide endpoint(s) among different Open-API screens

Two Spring-boot applications registering themselves to an spring-boot-admin-server application as separate clients for the purpose of monitoring and managing the clients

Daily mail subscription implementation using Java Spring-boot and Quartz Scheduler

Application made with spring boot and thymeleaf as the templating engine, consuming OMDBs API to show movie details

Spring-boot MVC application consuming Spotify's REST API

list of reference POCs to work with excel files using apache-POI and spring-boot

POC that sends emails to user on account creation event occurrence: made using java spring boot, apache freemarker, java-mail-API, bootstrap email editor and spring events.

Proof Of Concept showing OTP generation and validation technique using Java Spring-boot and LoadingCache Bean from google guava library to handle user's forgot-password flow