💻 Tech Certification API 💻

A REST API that allows students to answer questions and get their certifications developed using:

• Java
• Spring Boot
• Lombok
• PostgreSQL
• Docker

🚀 Features

• Register students
• Get students by e-mail
• Update students' e-mails
• Register multiple choice questions for a specific technology
• Get all questions for a technology
• Submit answers and get certified
• Check all details of a certification
• Get arbitrary size rankings of certification grades for a technology

🏁 How to Run

To run the application, you'll have to have JRE, Maven and Docker installed in your machine. To start the database container on port 5432, run the following command:

docker-compose up

Then, to start the application on port 8085, run the following command:

mvn spring-boot:run

To alter any of the ports, go to /docker-compose.yml and /src/main/resources/application.properties.

⚙️ Behavior

All endpoints consume and produce JSON and the following documentation uses mostly YAML

/students

POST

• Request Body

email: string
name: string

• Response

201 - Created:
    Headers:
        Location: URI (string)
409 - Conflict:
    Body:
        error:
            code: string
            details: string
    Meaning: Email is already in use.

GET /{studentEmail}

• Path Variable

studentEmail: string

• Response

200 - OK:
    Body:
        email: string
        fullName: string
        certifications:
            - id: UUID (string)
            technology: string
404 - Not Found:
    Meaning: Student does not exist.

PATCH /{studentEmail}

• Path Variable

studentEmail: string

• Request Body

email: string

• Response

200 - OK:
    Headers:
        Location: URI (string)
404 - Not Found:
    Meaning: Student referenced in path variable does not exist.
409 - Conflict:
    Body:
        error:
            code: string
            details: string
    Meaning: E-mail specified in request body is already in use.

/questions

POST

• Request Body

technology: string
description: string
alternatives:
    - description: string
      correct: boolean

• Response

201 - Created:
    Headers:
        Location: URI (string)

GET /{technology}

• Path Variable

technology: string

• Response

200 - OK:
    Body:
        - id: UUID (string)
          technology: string
          description: string
          alternatives:
              - id: UUID (string)
                description: string
404 - Not Found:
    Meaning: No questions found for the specified technology.

/certifications

POST

• Request Body

email: string
technology: string
answers:
    - questionId: UUID (string)
      alternativeId: UUID (string)

• Response

201 - Created:
    Headers:
        Location: URI (string)
404 - Not Found:
    Meaning: Either one of the resources referenced in request body (student, question and alternative) does not exist or technology, question and alternative are conflictant.

GET /{certificationId}

• Path Variable

certificationId: string

• Response

200 - OK:
    Body:
        id: UUID (string)
        technology: string
        grade: float
        timeOfEmition: datetime (string)
        answers:
            - question:
                  id: UUID (string)
                  description: string
              chosenAlternative:
                  id: UUID (string)
                  description: string
              correct: boolean
404 - Not Found:
    Body:
        error:
            code: string
            details: string
    Meaning: Certification does not exist.

GET /{technology}/rankings/{quantity}

• Path Variables

technology: string
quantity: integer

• Response

200 - OK:
    Body:
        - id: UUID (string)
          grade: float
          student:
              email: string
              name: string
404 - Not Found:
    Body:
        error:
            code: string
            details: string
    Meaning: No certifications found for the specified technology.