fetch.js

//==== User ====//
createUser(body, scenario = 'preliminary') {
    return window.fetch(`${API_DOMAIN}user/create?access-token=${API_TOKEN}&scenario=${scenario}`, {
        method: 'POST',
        headers: new Headers({ 'Content-Type': 'application/json' }),
        body: JSON.stringify(body)
    })
    .then(res => res.json());
}