Payara Micro Revealed: Cloud-Native Application Development with Java

Table of Contents
About the Author
About the Technical Reviewer
Acknowledgments
Chapter 1: Jakarta EE, MicroProfile, Payara, and the Cloud
	Brief Server-Side Java History
	J2EE
	Java EE
	MicroProfile
	Jakarta EE
	Payara
Chapter 2: Developing Microservices Using Payara Micro
	Setting Up Your Environment
		Payara Micro Maven Plug-in
		Payara BOM
		Payara Maven Repository
		Jakarta EE and MicroProfile Dependencies
	Specifying the Base URI for Our Web Services
	Running Our Application
	Developing RESTful Web Services
		Handling HTTP GET Requests
		Handling HTTP POST Requests
		Handling HTTP PUT Requests
		Handling HTTP DELETE Requests
		Handling HTTP PATCH Requests
	Path and Query Parameters
		Path Parameters
		Query Parameters
	Parsing JSON Data
	Summary
Chapter 3: Developing Microservice Clients
	MicroProfile REST Client API Overview
		Generating HTTP GET Requests
		Generating HTTP POST Requests
		Generating HTTP PUT Requests
		Generating HTTP DELETE Requests
	Path and Query Parameters
		Path Parameters
		Query Parameters
	Generating JSON from Java Objects
	Summary
Chapter 4: Contexts and Dependency Injection
	CDI Scopes
		Life Cycle of CDI Beans
	Dependency Injection
	CDI Events
		Firing Events
		Listening for Events
		Qualifiers
		Observing CDI Scopes
	Summary
Chapter 5: Application Configuration
	Configuration Sources
		Configuration via Property Files
		Configuration via Environment Variables
		Configuration via System Properties
		Payara Specific Config Sources
			Directory Configuration Source
			Password Configuration Source
			Domain Configuration Source
			JNDI Configuration Source
			Config Configuration Source
			Server Configuration Source
			Application Configuration Source
			Module Configuration Source
			Cluster Configuration Source
			JDBC Configuration Source
			LDAP Configuration Source
		Cloud Provider Specific Configuration Sources
		Custom Configuration Sources
	Dynamic Properties
	Converters
		Standard Converters
		Payara Micro Specific Converters
		Custom Converters
	Summary
Chapter 6: Metrics
	Base Metrics
	Vendor Metrics
	Application Metrics
		@Counted
		@Gauge
		@ConcurrentGauge
		@Metered
		@Timed
		@SimplyTimed
		Programmatic Application Metrics
	Configuring MicroProfile Metrics in Payara Micro
		Disabling Metrics
		Securing Metrics
		Customizing the Metrics Endpoint
		Static Metrics
	Summary
Chapter 7: High Availability and Fault Tolerance
	Asynchronously Calling RESTful Web Service Endpoints
	Limit Concurrent Execution to Avoid Overloading the System
		Using Semaphores for Synchronous Endpoints
		Using Thread Pools for Asynchronous Endpoints
	Stop Invoking Repeatedly Failing Endpoints
	Providing an Alternative Solution When Execution Fails
	Retrying Execution in Case of Failure
	Defining a Maximum Duration for Execution
	Summary
Chapter 8: Health Checks
	Free Health Check Functionality
	Determining If a Service Is Live
	Determining If a Service Is Ready
	Configuring MicroProfile Health
		Disabling MicroProfile Health
		Securing MicroProfile Health
		Customizing the MicroProfile Health Endpoint
	Summary
Chapter 9: Request Tracing
	Enabling Request Tracing in Payara Micro
	Spans and Traces
	Customizing Request Tracing
		Tracing Additional Methods
		Disabling Request Tracing
		Customizing the Operation Name
		Adding Additional Information to Spans
		Creating Additional Spans
	Summary
Chapter 10: Documenting Web Services
	Automatically Generating Documentation
	Customizing Documentation via Code Annotations
		Customizing HTTP Responses
		Customizing Documentation for Operations
		Customizing Documentation for Path or Query Parameters
	Configuring OpenAPI
		Configuring OpenAPI via MicroProfile Config
		Configuring OpenAPI via a Payara Micro Command File
			Disabling OpenAPI
			Enabling CORS Headers
			Securing OpenAPI
			Customizing the OpenAPI Endpoint
	Summary
Chapter 11: Security with JSON Web Tokens
	Obtaining a Token
	Securing Microservices with JSON Web Tokens
		MicroProfile Config JWT Properties
		MicroProfile JWT Annotations
	Invoking Secured Microservices with MicroProfile REST Client API
	Obtaining Information from a Token
	Summary
Chapter 12: Payara Micro Specific Features
	Automatic Clustering
		Clustered Application Scoped CDI Beans
		Remote CDI Events
	Uber Jars
		Creating Uber Jars
	Embedding Payara Micro
	Summary
Chapter 13: Payara Cloud
	Signing Up for Payara Cloud
	Developing Applications for Payara Cloud
	Deploying Applications to Payara Cloud
		Creating a Namespace
		Uploading Applications
	Running Applications in Payara Cloud
		Default Domains
		Custom Domains
	Summary
Index