JavaScript Fetch.txt

const URL = "https://jsonplaceholder.typicode.com/users"

class Http {
    get(url, headers) {
        return makeRequest('GET', url, headers)
    }

    post(url, headers, body) {
        return makeRequest('POST', url, headers, body)
    }
}

const http = new Http()

function makeRequest(method, url, body) {
    const headers = {
        'Content-Type': 'application/json'
    }

    return fetch(url, {
        method,
        headers,
        body: JSON.stringify(body)
    }).then(response => {
        if (response.ok) {
            return response.json()
        }

        return response.json().then(error => {
            const e = new Error('Something went wrong!')
            e.data = error
            throw e
        })
    })
}

class User {
    constructor(name, password) {
        this.name = name
        this.password = password
    }
}

const user = new User('Mikhail', '123456')

http.post(URL, user)
    .then(data => console.log(data))
    .catch(err => console.log(err))

JavaScript Fetch