Workbook 9.1

The grade-submission API will serve as a mediator between a consumer and the resources in an SQL database.

Workbook 9.1 will prepare the REST endpoints for the StudentController.

Launch the Starter Project

@RequestMapping

maps a web request at the class or method level.

This code maps any web request that starts with /student to the StudentController bean.

GET Request

Create a method:

• that handles GET requests made on /student.
• with return type: ResponseEntity<Student>.
• named getStudent.
• that accepts a @PathVariable Long id.
• that returns a ResponseEntity with no data and a status of 200.

Postman

Inside Postman, create a collection called: Grade Requests.

Inside Grade Requests, create a request called Read Student.

Make a GET request to localhost:8080/student/1

POST Request

Create a method:

• that handles POST requests made on /student.
• with return type ResponseEntity<Student>
• named saveStudent
• that deserializes incoming JSON properties into a Student object.
• that returns a ResponseEntity which re-serializes the object into a JSON with a status code of 201.

Postman

• Create a request called Create Student.
• Make a POST request that sends the following JSON:

{
    "name": "Harry Potter",
    "birthDate": "1980-07-31"
}

Response: 201 Created

{
    "id": null,
    "name": "Harry Potter",
    "birthDate": "1980-07-31"
}

DELETE Request

Create a method:

• that handles DELETE requests made on /student.
• with return type ResponseEntity<HTTPStatus>.
• named deleteStudent.
• with @PathVariable Long id.
• returns a ResponseEntity with a status code of 204.

Postman

• Create a request called Delete Student.

• Make a DELETE request.

Response: 204 No Content.

GET Request

• method handles GET requests made on /student/all.
• return type: ResponseEntity<List<Student>>.
• name: getStudents.
• returns a ResponseEntity with a status code of 200.

Postman

• Create a request called Read Students.

• Make a GET request.

Response: 200 OK.

Final Touches

Save every request

Create a new folder called Student. Drag every Student request there.

Good Luck!