Building RESTful Web Services with Spring 5 - Second Edition电子书

Title Page

Copyright and Credits

Building RESTful Web Services with Spring 5 Second Edition

Dedication

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PacktPub.com

Contributors

About the authors

About the reviewer

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Preface

Who this book is for

What this book covers

To get the most out of this book

Download the example code files

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Conventions used

Get in touch

Reviews

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

Login and token management

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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