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Looking for a Spring Boot API book that goes beyond boilerplate code? Spring Boot API: Insurance Quote Application is a hands‑on guide for developers who want to build real, production‑ready applications. Whether you’re new to Spring Boot or refining your Agile skills, this book walks you through the full development lifecycle—from user stories and Gherkin scenarios to Test‑Driven Development, layered architecture, microservices integration, and API testing with Postman, Swagger, and mocking frameworks.

Software architecture isn’t just about layers, endpoints, and data flow—it’s about people. Behind every controller is a user story. Behind every test case is a team striving to build with confidence. This book invites you to see Spring Boot development not just as a technical craft, but as a human one. Through clear diagrams, real‑world APIs, and thoroughly commented code, you’ll explore how thoughtful design can shape better software.

Inside, you will build three APIs in the form of microservices that power a dynamic insurance platform. You’ll explore:

Agile development with real‑life scenarios
Test‑Driven Development using JUnit
Testing with Mockito
Spring Boot layering: controllers, services, repositories, DTOs, and exceptions
JPA with H2 database, validation, and response entities
Pagination and dynamic search endpoints for user‑facing data
Deployment on a Tomcat server with practical configuration tips

With consistent terminology and clearly explained code examples, this book helps you connect the dots between backend architecture and real‑world impact. Each technical decision—every layer, test, and naming convention—isn’t just about code quality, it’s about making life easier for:

The developer who inherits your code
The learner trying to understand the flow
The user who relies on the application to solve a real problem

Take your Spring Boot skills to the next level and build APIs that truly work—with clarity, confidence, and purpose.

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