Java Sprint Boot

Authentication, Authorization, SQL, Async tasks, Unit Tests, Code Coverage.

Rerferences

• Building an Application with Spring Boot
• Spring Boot Examples
• Spring Boot – Starters
• Spring Boot Actuator
• Using Logback with Spring Boot
• @Controller and @RestController Annotations in Spring Boot
• Spring Data JPA - Reference Documentation
• Jackson Project Home @github
• Java Map Class
• Spring Boot Connect to PostgreSQL Database Examples
• Spring Boot PostgreSQL
• Spring Boot + PostgreSQL + JPA/Hibernate CRUD Restful API Tutorial
• Java 8 – Convert Optional to String
• Personalizar las relaciones con @JoinColumn
• Securing a Web Application
• Hashing a Password in Java
• Password authentication in Java
• Pagination and Sorting using Spring Data JPA
• Spring @Async Annotation for Asynchronous Processing
• Introduction to Spring Testing
• AssertJ Core
• How to configure maven surefire plugin work with JUnit 5

Data Model

User

Attribute	Type	Description
id	int	User unique identifier.
name	string	User name.
password	string	User hashed password.

Job

Attribute	Type	Description
id	int	Job id.
createdAt	date	Job creation date.
startedAt	date	Job start date.
endedAt	date	Job end date.
status	int	Job status (Pending, Started, Ended, Failed).

Person

Attribute	Type	Description
id	int	Person unique identifier.
name	string	Person name.

Property

Attribute	Type	Description
id	int	Property unique identifier.
ownerId	int	Owner unique identifier.
name	string	Property name.

API Documentation

Users

Methd	Endpoint	Description
POST	/api/v1/auth/signup/	Create an User.
POST	/api/v1/auth/logout/	Logout endpoint.
POST	/api/v1/auth/login/	Login endpoint.
GET	/api/v1/auth/session/	Get session details.
PUT	/api/v1/auth/session/	Update your User.

Users

Methd	Endpoint	Description
GET	/api/v1/jobs/	List the latest jobs.
GET	/api/v1/jobs/:id	Get one job by id.

Persons

Methd	Endpoint	Description
GET	/api/v1/persons/	Lists persons.
POST	/api/v1/persons/	Create a person.
GET	/api/v1/persons/:id/	Person details.
PUT	/api/v1/persons/:id/	Update person.
DELETE	/api/v1/persons/:id/	Delete a person.

Properties

Methd	Endpoint	Description
GET	/api/v1/properties/	Lists properties.
POST	/api/v1/properties/	Create a Property.
GET	/api/v1/properties/:id/	Property details.
PUT	/api/v1/properties/:id/	Update Property.
DELETE	/api/v1/properties/:id/	Delete a Property.

Software Architecture

Configuration

File	Description
pom.xml	Maven Configuration.
application.properties	Application Properties.
Application.java	Application Context.
GlobalProperties.java	Application Configuration.

Controllers

File	Description
RootController.java	Root Endpoint.
PersonController.java	Person API Resource.
PropertyController.java	Property API Resource.
UserController.java	User API Resource.
JobController.java	Job API Resource.

Models

File	Description
Person.java	Person model.
Property.java	Property model.
User.java	User model.
Job.java	Job model.

Tasks

File	Description
PersonTasks.java	Person tasks.
PropertyTasks.java	Property tasks.

Repositories

File	Description
PersonRepository.java	Person model repository.
PropertyRepository.java	Property model repository.
UserRepository.java	User model repository.
JobRepository.java	Job model repository.

Services

File	Description
PersonService.java	Person business logic.
PropertyService.java	Property business logic.
UserService.java	User business logic.
JobService.java	Job business logic.

Exceptions

File	Description
GlobalErrorHandler.java	Catches exceptions globally and generates pretty JSON responses.
ErrorResponse.java	Pretty representation of a Java exception.
PersonNotFoundError.java	Person not found.
PropertyNotFoundError.java	Property not found.
UserNotFoundError.java	User not found.
JobNotFoundError.java	Job not found.

Unit Tests

File	Description
PersonApiTests.java	Testing the Person API.
PersonControllerTests.java	Testing the Person controller.
PersonRepositoryTests.java	Testing the Person repository.
PersonServiceTests.java	Testing the Person service.

Utils

File	Description
HashUtil.java	Utilities for hashsing password.

Instructions

Installation

Starting related servies

docker-compose up

[...]
db_1 | 2022-11-24 22:30:48.577 UTC [1] LOG: listening on IPv4 address "0.0.0.0", port 5432
db_1 | 2022-11-24 22:30:48.577 UTC [1] LOG: listening on IPv6 address "::", port 5432
db_1 | 2022-11-24 22:30:48.602 UTC [1] LOG: listening on Unix socket "/var/run/postgresql/.s.PGSQL.5432"
db_1 | 2022-11-24 22:30:48.639 UTC [48] LOG: database system was shut down at 2022-11-24 22:30:48 UTC
db_1 | 2022-11-24 22:30:48.659 UTC [1] LOG: database system is ready to accept connections

Running the application with Maven:

SALT="asdfasdf" DEBUG="true" ENVIRONMENT="martin" ./mvnw spring-boot:run

Checking the application health status:

curl -s http://localhost:8080/actuator/health

{
"environment": "martin",
"debug": "true"
}

Running unit tests:

./mvnw clean test

Opening the Code Coverage HTML:

google-chrome target/site/jacoco/index.html 

Authentication

Requests before authenticating are restricted.

curl --cookie-jar "/tmp/london" -X POST -s http://localhost:8080/api/v1/login/ -d 'username=user&password=password'

HTTP/1.1 403 Set-Cookie: JSESSIONID=773BEA4F294E1D05CD15CC80870F4F19; Path=/; HttpOnly
X-Content-Type-Options: nosniff
X-XSS-Protection: 1; mode=block
Cache-Control: no-cache, no-store, max-age=0, must-revalidate
[...]

Sign up as a new User.

curl --cookie-jar "/tmp/london" -X POST -s http://localhost:8080/api/v1/signup/ -H 'content-type: application/json' -d '{"name": "lorem", "password": "ipsum"}'

{
"id": 1,
"name": "Lorem Ipsum"
}

Authenticating using username and password:

TODO

Persons

Retrieving a non-existent Person:

curl --cookie-jar "/tmp/london" -s http://localhost:8080/api/v1/persons/123/

{
"timestamp": "2022-11-25T14:58:55.492+00:00",
"type": "com.martincastroalvarez.london.PersonNotFoundError",
"message": null
}

Creating a Person:

curl --cookie-jar "/tmp/london" -X POST -s http://localhost:8080/api/v1/persons/ -H 'content-type: application/json' -d '{"name": "Lorem Ipsum"}'

{
"id": 1,
"name": "Lorem Ipsum"
}

Listing existing Persons:

curl --cookie-jar "/tmp/london" -X GET -s "http://localhost:8080/api/v1/persons/?sort_key="name&limit=10&offset=0"

[
{
"id": 3,
"name": "Lorem Ipsum"
},
{
"id": 1,
"name": "Sit Amet"
},
{
"id": 2,
"name": "Nisman"
}
]

Updating an existing Person:

curl --cookie-jar "/tmp/london" -X PUT -s http://localhost:8080/api/v1/persons/1 -H 'content-type: application/json' -d '{"name": "Sit Amet"}'

{
"id": 1,
"name": "Sit Amet"
}

Getting Person details:

curl --cookie-jar "/tmp/london" -s http://localhost:8080/api/v1/persons/2

{
"id": 2,
"name":"Nisman"
}

Deleting a Person:

curl --cookie-jar "/tmp/london" -X DELETE -s http://localhost:8080/api/v1/persons/3

{
"id": 21,
"createdAt": null,
"endedAt": null,
"startedAt": null,
"status": null,
"message": null
}

Searching for Persons by name:

curl --cookie-jar "/tmp/london" -X GET -s "http://localhost:8080/api/v1/persons/?name=Sit&sort_key=name"

[
{
"id": 1,
"name": "Sit Amet"
}
]

Jobs

Listing jobs:

curl --cookie-jar "/tmp/london" -X GET -s "http://localhost:8080/api/v1/persons/?name=Sit&sort_key=name"

[
{
"id": 1,
"name": "Sit Amet"
}
]

Jobs

Listing jobs:

curl --cookie-jar "/tmp/london" -X GET -s "http://localhost:8080/api/v1/jobs/?limit=2&offset=0"

[
{
"id": 12,
"createdAt": null,
"endedAt": "2022-11-25T22:54:34.484+00:00",
"startedAt": "2022-11-25T22:54:34.461+00:00",
"status": "FAILED",
"message": "Person now found!"
},
{
"id": 13,
"createdAt": null,
"endedAt": "2022-11-25T22:58:39.070+00:00",
"startedAt": "2022-11-25T22:58:39.045+00:00",
"status": "FAILED",
"message": "Person now found!"
},
{
"id": 11,
"createdAt": null,
"endedAt": "2022-11-25T22:54:11.839+00:00",
"startedAt": "2022-11-25T22:54:11.819+00:00",
"status": "FAILED",
"message": "Person now found!"
}
]

Properties

Retrieving a non-existent Propertes:

curl --cookie-jar "/tmp/london" -s http://localhost:8080/api/v1/properties/123/

{
"timestamp": "2022-11-25T14:58:55.492+00:00",
"type": "com.martincastroalvarez.london.PropertyNotFoundError",
"message": null
}

Creating a Property:

curl --cookie-jar "/tmp/london" -X POST -s http://localhost:8080/api/v1/properties/ -H 'content-type: application/json' -d '{"name": "Lorem Ipsum", "ownerId": 1}'

{
"id": 10,
"owner": {
"id": 1,
"name":"Sit Amet"
},
"name":"Lorem Ipsum"
}

Listing existing properties:

curl --cookie-jar "/tmp/london" -X GET -s "http://localhost:8080/api/v1/properties/?sort_key=name"

[
{
"id": 10,
"owner": {
"id": 1,
"name":"Sit Amet"
},
"name":"Lorem Ipsum"
}
]

Updating an existing Property:

curl --cookie-jar "/tmp/london" -X PUT -s http://localhost:8080/api/v1/properties/1 -H 'content-type: application/json' -d '{"name": "Sit Amet", "ownerId": 2}'

{
"id": 10,
"owner": {
"id": 2,
"name":"Nisman"
},
"name":"Sit Amet"
}

Getting Property details:

curl --cookie-jar "/tmp/london" -s http://localhost:8080/api/v1/properties/1

{
"id": 2,
"name":"Nisman"
}

Deleting a Property:

curl --cookie-jar "/tmp/london" -X DELETE -s http://localhost:8080/api/v1/properties/10

{
"id": 43,
"createdAt": null,
"endedAt": null,
"startedAt": null,
"status": null,
"message": null
}