REST API
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Software Development
Client-Server Communication: HTTP, REST, WebSockets, GraphQL, and gRPC
Modern software applications depend on communication between clients and servers. Every time a browser loads a webpage, a mobile application…
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Node.js
Role-Based Access Control in Node.js with JWT
Role-Based Access Control (RBAC) is a fundamental security pattern used to restrict system access based on user roles. When combined…
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Enterprise Java
Implementing API Versioning in Spring
APIs must evolve as business requirements change, but breaking existing consumers is rarely acceptable. A clear versioning strategy enables services…
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Core Java
Apache POI HSSFWorkbook: Read, Write, and Stream Excel
Working with Excel files is a common requirement in enterprise Java applications, whether for reporting, data exchange, or bulk uploads.…
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Enterprise Java
Feign HTTP GET Request Body Example
Feign is a declarative HTTP client in the Spring ecosystem that simplifies calling external APIs. While Feign makes it easy…
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Core Java
Beyond REST: GraphQL APIs in Java for Flexible Data Access
For years, REST APIs have been the standard for building backend services in Java. They’re simple, well-understood, and widely adopted.…
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Core Java
GraphQL vs. REST in Enterprise Java Applications: Designing Flexible APIs for Modern Frontends
As enterprise applications evolve, so do the expectations of frontend teams. With SPAs, mobile clients, dashboards, and micro frontends growing…
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Core Java
Implementing gRPC to REST Gateway in Java
gRPC is an efficient binary protocol ideal for internal microservices communication. However, many clients and partners still expect RESTful APIs…
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Core Java
Hibernate Panache Example
Hibernate ORM with Panache is a modern, simplified way to use Hibernate in Java applications. Built into the Quarkus framework,…
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