k1729p/study02

Study02 README Contents

Topics: SpringBoot ● Spring WebFlux ● Reactive Streams ● Reactive REST ● MongoDB ● Docker ● MockMvc

Research the Reactive REST Web Service

On the server-side WebFlux supports two distinct programming models:

• Functional Endpoints
• Annotated Controllers

Project Study02 implements one of them, the "Annotated Controllers" programming model.

The flowchart with Docker containers 'study02' and 'mongo'.

The sections of this project:

1. Docker Build
2. Web Browser Client
3. Curl Client

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Java source code. Packages:

application sources :  kp

The domain objects class diagram.

The repositories for the document database MongoDB:

• kp.company.repository.AggregateRelationRepository
• kp.company.repository.DepartmentRepository
• kp.company.repository.EmployeeRepository

These repositories extend Spring ReactiveMongoRepository.

Java API Documentation

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❶ Docker Build

Action:

1. With batch file "01 Docker build and run.bat" build the image and
start the container with the SpringBoot server.

1.1. Docker image is built using these files: Dockerfile and compose.yaml.

The screenshot of the created Docker containers.

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❷ Web Browser Client

Action:

1. With the URL http://localhost:8380 open in the web browser the home page.
2. On this home page select 'Load sample dataset' http://localhost:8380/loadSampleDataset.

2.1. The home page on the Docker link: http://localhost:8380.

The screenshot of the home page.

Below are presented the results from some selected links on the home page.

2.2. The 'Find department and employees by department name' (Mono) link: http://localhost:8380/aggregate/find/findByDepartmentName?departmentName=D-Name-1.

The controller method: kp.company.controller.CompanyController::findAggregateByDepartmentName.

The result from the 'Find department and employees by department name' (Mono).

2.3. The 'Find department and employees by department name' (Flux) link: http://localhost:8380/aggregateFlux/find/findByDepartmentName?departmentName=D-Name-1.

The controller method: kp.company.controller.CompanyController::findAggregateFluxByDepartmentName.

The result from the 'Find department and employees by department name' (Flux).

2.4. The 'Find all departments' link: http://localhost:8380/departments.

The controller method: kp.company.controller.DepartmentController::findDepartments.

The result from the 'Find all departments'.

2.5. The 'Find department by name' link: http://localhost:8380/departments/find/findByName?name=D-Name-1.

The controller method: kp.company.controller.DepartmentController::findDepartmentByName.

The result from the 'Find department by name'.

2.6. The 'Find all employees' link: http://localhost:8380/employees.

The controller method: kp.company.controller.EmployeeController::findEmployees.

The result from the 'Find all employees'.

2.7. The 'Find employee by first and last name' link: http://localhost:8380/employees/find/findByFirstNameAndLastName?firstName=EF-Name-101&lastName=EL-Name-101.

The controller method: kp.company.controller.EmployeeController::findEmployeeByFirstNameAndLastName.

The result from the 'Find employee by first and last name'.

2.8. The 'List of actuator endpoints' link: http://localhost:8380/actuator.

The result from the 'List of actuator endpoints'.

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❸ Curl Client

Action:

1. With batch file "03 CURL call server.bat" load the sample dataset and get departments and employees.

3.1. The screenshot of the console log from the run of the batch file "03 CURL call server.bat"

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