alexlionnel / graphql-courses

Cours Udemy sur GraphQL

Requetes pour initialiser la base de données

INSERT INTO address VALUES (1,'Happy Street','Delhi'),(2,'2nd Street','Mumbai'),(3,'3rd Street','Delhi'),(4,'any street','Mumbai');
INSERT INTO student (id, first_name, last_name, email, address_id) VALUES (1,'John','Smith','[email protected]',1),(2,'Virat','Dave','[email protected]',2),(3,'Steve','Martin','[email protected]',3),(4,'Sachin','Kumar','[email protected]',4);
INSERT INTO subject (id, subject_name, marks_obtained, student_id) VALUES (1, 'Java', 80, 1), (2, 'MySQL', 70, 1), (3, 'Java', 80, 2), (4, 'MySQL', 70, 2), (5, 'MongoDB', 70, 2), (6, 'MySQL', 70, 3), (7, 'MongoDB', 70, 3), (8, 'Java', 60, 4), (9, 'MongoDB', 50, 4);

Requêtes avec filtre

query {
  student(id: 3) {
    email
    firstName
    lastName
    learningSubjects(subjectNameFilter: MongoDB) {
      id
      subjectName
    }
    fullName
  }
}

Requête de modification

mutation {
  createStudent(createStudentRequest: {
    firstName: "Alex"
    lastName: "Omar"
    email: "[email protected]"
    street: "any street"
    city: "canada"
    subjectsLearning: [
      {
        subjectName: "Java"
        marksObtained: 60.00
      },
      {
        subjectName: "MongoDB"
        marksObtained: 50.00
      }
    ]
  }) {
    id
    firstName
    lastName
    email
    street
    city
    learningSubjects(subjectNameFilter: All) {
      id
      subjectName
      marksObtained
    }
    fullName
  } 
}

Requête query avec une variable graphQL

query student($id: Int, $subName: SubjectNameFilter) {
    student(id: $id) {
        email
        firstName
        lastName
        learningSubjects(subjectNameFilter: $subName) {
            id
            subjectName
        }
        fullName
    }
}

Variable

{
    "id": 1,
    "subName": "All"
}

Requête mutation avec une variable graphQL

mutation createStudent($createStudentRequest: CreateStudentRequest) {
    createStudent(createStudentRequest: $createStudentRequest) {
        id
        firstName
        lastName
        email
        street
        city
        learningSubjects(subjectNameFilter: All) {
            id
            subjectName
            marksObtained
        }
        fullName
    }
}

Variable

{
  "createStudentRequest": {
    "firstName": "Alex",
    "lastName": "Omar",
    "email": "[email protected]",
    "street": "any street",
    "city": "canada",
    "subjectsLearning": [
      {
        "subjectName": "Java",
        "marksObtained": 60.00
      },
      {
        "subjectName": "MongoDB",
        "marksObtained": 50.00
      }
    ]
  }
}