book

Spring Boot 3.0 Cookbook

by Felip Miguel Puig

July 2024

Intermediate to advanced

426 pages

9h 51m

English

Packt Publishing

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About the authorAbout the reviewers
Who this book is forWhat this book coversTo get the most out of this bookDownload the example code filesConventions usedSectionsGetting readyHow to do it…How it works…There’s more…See alsoGet in touchShare Your ThoughtsDownload a free PDF copy of this book
Technical requirementsCreating a RESTful APIGetting readyHow to do it...How it works...There’s more...See alsoDefining responses and the data model exposed by the APIGetting readyHow to do it...How it works...Managing errors in a RESTful APIGetting readyHow to do it...How it works...There’s more...Testing a RESTful APIGetting readyHow to do it...How it works...There’s more...See alsoUsing OpenAPI to document our RESTful APIGetting readyHow to do it...How it works...Consuming a RESTful API from another Spring Boot application using FeignClientGetting readyHow to do it...How it works...There’s more...Consuming a RESTful API from another Spring Boot application using RestClientGetting readyHow to do it...How it works...Mocking a RESTful APIGetting readyHow to do it...How it works...See also
Technical requirementsSetting up Spring Authorization ServerGetting readyHow to do it…How it works…There’s more…See alsoProtecting a RESTful API using OAuth2Getting readyHow to do it…How it works…Protecting a RESTful API using OAuth2 with different scopesGetting readyHow to do it…How it works…There’s more…See alsoConfiguring an MVC application with OpenID authenticationGetting readyHow to do it…How it works…See alsoLogging in with Google AccountsGetting readyHow to do it…How it works…See alsoIntegrating a RESTful API with a cloud IdPGetting readyHow to do it…How it works…There’s more…
Technical requirementsAdding Actuator to your applicationGetting readyHow to do it…How it works…There’s more…See alsoCreating a custom Actuator endpointGetting readyHow to do it…How it works…Using probes and creating a custom health checkGetting readyHow to do it…How it works…See alsoImplementing distributed tracingGetting readyHow to do it…How it works…There’s more…Accessing standard metricsGetting readyHow to do it…How it works…See alsoCreating your own metricsGetting readyHow to do it…How it works…There’s more…Integrating your application with Prometheus and GrafanaGetting readyHow to do it…How it works…Changing the settings of a running applicationGetting readyHow to do it…How it works…There’s more…
Technical requirementsSetting up Eureka ServerGetting readyHow to do it...How it works...Integrating an application in Eureka ServerGetting readyHow to do it...How it works...There’s more...Scaling out the RESTful APIGetting readyHow to do it...How it works...Setting up Spring Cloud GatewayGetting readyHow to do it...How it works...See alsoTesting Spring Cloud GatewayGetting readyHow to do it...How it works...Setting up Spring Cloud ConfigGetting readyHow to do it...How it works...There’s more...See alsoIntegrating distributed tracing with Spring CloudGetting readyHow to do it...How it works...Deploying Spring Boot AdminGetting readyHow to do it...How it works...Protecting Spring Cloud GatewayGetting readyHow to do it...How it works...
Technical requirementsConnecting your application to PostgreSQLGetting readyHow to do it...How it works...There’s more...Using JdbcClient to access the databaseGetting readyHow to do it...How it works...Using an ORM to access the databaseGetting readyHow to do it...How it works...There’s more...See alsoCreating the database schema from our codeGetting readyHow to do it...How it works...There’s more...See alsoPostgreSQL integration tests with TestcontainersGetting readyHow to do it...How it works...Versioning and upgrading database schemaGetting readyHow to do it...How it works...There’s more...See alsoUsing JPQLGetting readyHow to do it...How it works...There’s more...Using Native QueriesGetting readyHow to do it...How it works...There’s more...See alsoUpdating OperationsGetting readyHow to do it...How it works...See alsoUsing Dynamic QueriesGetting readyHow to do it...How it works...There’s more...See alsoUsing TransactionsGetting readyHow to do it...How it works...There’s more...See also

Technical requirementsConnecting your application to MongoDBGetting readyHow to do it...How it works...There’s more...Using Testcontainers with MongoDBGetting readyHow to do it...How it works...Data indexing and sharding in MongoDBGetting readyHow to do it...How it works...There’s more...Using transactions in MongoDBGetting readyHow to do it...How it works...See alsoDeploying a MongoDB cluster in TestcontainersGetting readyHow to do it...How it works...Managing concurrency with MongoDBGetting readyHow to do it...How it works...Connecting your application to Apache CassandraGetting readyHow to do it...How it works...See alsoUsing Testcontainers with CassandraGetting readyHow to do it...How it works...Using Apache Cassandra templatesGetting readyHow to do it...How it works...There’s more...Managing concurrency with Apache CassandraGetting readyHow to do it...How it works...
Technical requirementsTuning the database connection poolGetting readyHow to do it…How it works…There’s more…Caching dependenciesGetting readyHow to do it…How it works…There’s more…Using shared cacheGetting readyHow to do it…How it works…Using Testcontainers with Redis cacheGetting readyHow to do it…How it works…Creating a native image using Spring BootGetting readyHow to do it…How it works…Using GraalVM Tracing Agent to configure the native applicationGetting readyHow to do it…How it works…There’s more…Creating a native executable using Spring BootGetting readyHow to do it…How it works…There’s more…Creating a native executable from a JARGetting readyHow to do it…How it works…
Technical requirementsCreating a reactive RESTful APIGetting readyHow to do it...How it works...There’s more...Using a reactive API clientGetting readyHow to do it...How it works...Testing reactive applicationsGetting readyHow to do it...How it works...Connecting to PostgreSQL using Spring Data R2DBCGetting readyHow to do it...How it works...There’s more...Event-driven applications with Spring Cloud Stream and RabbitMQGetting readyHow to do it...How it works...There’s more...See alsoRouting messages with Spring Cloud Stream and RabbitMQGetting readyHow to do it...How it works...See alsoError handling with Spring Cloud StreamGetting readyHow to do it...How it works...See also
Technical requirementsPreparing the applicationGetting readyHow to do it...How it works...See alsoPreparing Spring SecurityGetting readyHow to do it...How it works...See alsoDetecting property changesGetting readyHow to do it...How it works...Upgrade the project to Spring Boot 3Getting readyHow to do it...How it works...Upgrading Spring DataGetting readyHow to do it...How it works...There’s more...See alsoManaging Actuator changesGetting readyHow to do it...How it works...See alsoManaging web application changesGetting readyHow to do it...How it works...There’s more...See alsoUsing OpenRewrite for migration automationGetting readyHow to do it...How it works...There’s more...See also
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Content preview from Spring Boot 3.0 Cookbook

7 Finding Bottlenecks and Optimizing Your Application

Finding what makes your application perform below your expectations can be difficult if you don’t follow a systematic approach. When optimizing an application, it’s important to focus your efforts on facts, not guesses. For that reason, in this chapter, we’ll leverage the tools and learnings from Chapter 3, and we’ll tackle some common challenges by analyzing the footprints of the changes applied.

In this chapter, you will learn how to use observability tools to find the bottlenecks of your application and apply some common techniques of application optimization, such as caching and runtime tuning. You will also learn how to improve your application’s startup time and resource consumption ...