Building RESTful Web Services with Spring 5 · 2nd Edition by Dewailly, Ludovic -- Read -- Imperial Library of Trantor

Index

Preface

Who this book is for What this book covers To get the most out of this book

Download the example code files Download the color images Conventions used

Get in touch

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A Few Basics

REST – a basic understanding

Uniform interface Client and server Stateless Cacheable Layered system Code on demand (COD) More on REST

Imperative and Reactive programming

Reactive Streams Benefits of Reactive programming

Reactive programming in Java and Spring 5 Our RESTful web service architecture Summary

Building RESTful Web Services in Spring 5 with Maven

Apache Maven

Creating a project with Maven

Viewing a POM file after creating a project

POM file structure Understanding POM dependencies Adding Log4j 2.9.1 to POM dependency

Dependency trees Spring Boot

Developing RESTful web services

Creating a project base Working with your favorite IDE

Summary

Flux and Mono (Reactor Support) in Spring

Benefits of Reactive programming

Reactive Core and Streams

Back pressures and Reactive Streams WebFlux Basic REST API Flux Mono

User class with Reactive – REST Summary

CRUD Operations in Spring REST

CRUD operations in Spring REST

HTTP methods Reactive server initialization Sample values in the repository getAllUsers – mapping getAllUsers – implementation in the handler and repository Testing the endpoint – getAllUsers getUser – implementation in the handler and repository Testing the endpoint – getUser createUser – implementation in the handler and repository Testing the endpoint – createUser updateUser – implementation in the handler and repository Testing the endpoint – updateUser deleteUser – implementation in the handler and repository Testing the endpoint – deleteUser

Summary

CRUD Operations in Plain REST (Without Reactive) and File Upload

Mapping CRUD operations to HTTP methods Creating resources CRUD operation in Spring 5 (without Reactive)

getAllUsers – implementation getUser – implementation createUser – implementation updateUser – implementation deleteUser – implementation

File uploads – REST API

Testing the file upload

Summary

Spring Security and JWT (JSON Web Token)

Spring Security

Authentication and authorization JSON Web Token (JWT)

JWT dependency

Creating a JWT token Generating a token Getting a subject from a JWT token Getting a subject from a token

Summary

Testing RESTful Web Services

JUnit MockMvc

Testing a single user

Postman

Getting all the users – Postman Adding a user – Postman Generating a JWT – Postman Getting the subject from the token

SoapUI

Getting all the users – SoapUI Generating JWT SoapUI Getting the subject from the token – SoapUI

jsoup

Getting a user – jsoup Adding a user – jsoup Running the test cases

Summary

Performance

HTTP compression

Content negotiation

Accept-Encoding Content-Encoding Server-driven content negotiation Agent-driven content negotiation

HTTP caching

HTTP cache control

Public caching Private caching No-cache Only-if-cached

Cache validation

ETags Last-Modified/If-Modified-Since headers

Cache implementation

The REST resource Caching with ETags

Summary

AOP and Logger Controls

Aspect-oriented programming (AOP)

AOP (@Before) with execution

Testing AOP @Before execution

AOP (@Before) with annotation

Testing AOP @Before annotation

Integrating AOP with JWT

Logger controls

SLF4J, Log4J, and Logback

Logback framework Logback dependency and configuration Logging levels Logback implementation in class

Summary

Building a REST Client and Error Handling

Building a REST client

RestTemplate

Error handling

Customized exception

Summary

Scaling

Clustering

Benefits of clustering

Load balancing Scaling databases

Vertical scaling Horizontal scaling Read replicas Pool connections Use multiple masters Load balancing in DB servers Database partitioning

Sharding (horizontal partitioning) Vertical partitioning

Distributed caching

Data-tier caching

First-level caching Second-level caching

Application-tier caching

Memcached Redis Hazelcast Ehcache Riak Aerospike Infinispan Cache2k

Other distributed caching

Amazon ElastiCache Oracle distributed cache (Coherence)

Summary

Microservice Basics

Monolithic architecture and its drawbacks Introduction to microservices

Independence and autonomy Resilience and fault tolerance Automated environment Stateless

Benefits of microservices Microservice components

Configuration server Load balancer Service discovery Circuit breaker Edge server

Microservice tools

Netflix Eureka Netflix Zuul Spring Cloud Netflix Netflix Ribbon Netflix Hystrix Netflix Turbine HashiCorp Consul Eclipse MicroProfile

Summary

Ticket Management – Advanced CRUD

Ticket management using CRUD operations Registration

User types User POJO Customer registration Admin registration CSR registration

Generating a token Customer login Admin login CSR login

Ticket management

Ticket POJO

Getting a user by token

User Ticket management

Ticket controller The UserTokenRequired interface The UserTokenRequiredAspect class

Getting my tickets – customer Allowing a user to view their single ticket Allowing a customer to update a ticket

Updating a ticket – service (TicketServiceImpl)

Deleting a ticket

Deleting a service – service (TicketServiceImpl) Deleting my ticket – API (ticket controller)

Admin Ticket management

Allowing a admin to view all tickets

Getting all tickets – service (TicketServiceImpl) Getting all tickets – API (ticket controller) The AdminTokenRequired interface The AdminTokenRequiredAspect class

Admin updates a ticket

Updating a ticket by admin – service (TicketServiceImpl)

Allowing admin to view a single ticket Allowing admin to delete tickets

Deleting tickets – service (TicketServiceImpl): Deleting tickets by admin – API (ticket controller):

CSR Ticket management

CSR updates a ticket

CSRTokenRequired AOP CSRTokenRequiredAspect

CSR view all tickets

Viewing all tickets by CSR – API (ticket controller)

CSR view single ticket CSR delete tickets

Deleting tickets – service (TicketServivceImpl) Deleting tickets by CSR – API (ticket controller)

Summary

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