Enterprise Java
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How to Validate a Map with Spring Validator
Validating user input is a crucial part of any application, and Spring provides robust validation support using JSR-303 annotations through…
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Spring Boot H2 Console Error Explained/Resolved
The H2 database is an in-memory database widely used during Spring Boot development for quick prototyping. Spring Boot conveniently provides…
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Using OpenTelemetry with Spring Boot for Distributed Tracing
Integrating Jaeger, Zipkin, or Tempo via Micrometer and OpenTelemetry Modern microservices are powerful—but they introduce complexity. When dozens of services…
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Building GraphQL APIs with Spring Boot and Netflix DGS Framework
Schema-first Design, Resolvers, and Advanced Query Performance Tips As APIs grow in complexity and client demands become more dynamic, developers…
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Spring AI – OpenAI TTS Example
The ability to convert text into natural-sounding speech has unlocked exciting opportunities, from building voice assistants and narrating content to…
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Build REST/GraphQL APIs with Apache Camel
Apache Camel is a powerful integration framework that simplifies the connection of systems and the exposure of APIs. Let us…
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Return Anydata From GraphQL Mutation
In GraphQL, a mutation is used to modify server-side data, such as creating, updating or deleting resources. In many cases,…
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Spring AOP Method Call Within Same Class Example
Spring AOP (Aspect-Oriented Programming) allows developers to modularize cross-cutting concerns like logging, transactions, or security. However, a common pitfall developers…
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Swagger Group Endpoints By Resources Example
Swagger (also known as OpenAPI) is widely used for documenting RESTful APIs. When working on large applications with multiple controllers,…
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