Post request with pure JS - no jQuery/ajax

getAndPostRequest.js

async function getData(){
    let url = 'https://jsonplaceholder.typicode.com/posts/1';
    let page = await fetch(url);
    let json = await page.json();
    console.log(json);
}

async function postData(){
    let url = 'https://jsonplaceholder.typicode.com/posts';
    let person = {
        firstName:"jason",
        lastName:"bourne"
    };
    let headers =  {
        'Content-type': 'application/json; charset=UTF-8'
    };
    let request = {
        method:"POST",
        body:JSON.stringify(person),
        headers
    };
    let page = await fetch(url,request);
    let json = await page.json();
    console.log(json);
}