Function addNewStudent

src/frontend/src/client.js:17–25

        .then(checkStatus);

export const addNewStudent = student =>
    fetch("api/v1/students", {
            headers: {
                'Content-Type': 'application/json'
            },
            method: 'POST',
            body: JSON.stringify(student)
        }
    ).then(checkStatus)

export const deleteStudent = studentId =>
    fetch(`api/v1/students/${studentId}`, {