How to generate JSON from caught POST?

Question

AJAX

Good day. I caught a POST request from the site, please tell me how to make it in JavaScript (to send from the plugin).

await fetch("https://web.totalcoin.io/services/otc/api/v1/offers/update", {
    "credentials": "include",
    "headers": {
        "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:97.0) Gecko/20100101 Firefox/97.0",
        "Accept": "application/json, text/plain, */*",
        "Accept-Language": "ru",
        "Authorization": "e34hbGciCtcE",
        "Content-ID-UUID": "6546-c456-456-a355-....",
        "Content-Type": "application/json;charset=utf-8",
        "Sec-Fetch-Dest": "empty",
        "Sec-Fetch-Mode": "cors",
        "Sec-Fetch-Site": "same-origin"
    },
    "referrer": "https://web.totalcoin.io/",
    "body": "{\"id\":\"b5b33db7-535c-4cdc-bd53-....\",\"paymentMethod\":{\"id\":732,\"name\":\"Tinkoff Bank\",\"currencyId\":\"USD\",\"currencyDisplayNameShort\":\"$\",\"icon\":\"https://img.totalcoin.io/upload/_pmc/176.png\",\"bestPriceSell\":43916.81,\"bestPriceBuy\":36647.32},\"price\":43500,\"limitMin\":50,\"limitMax\":3000,\"active\":false,\"user\":{\"id\":\"ef8be720-e12e-452b-a67c-....\",\"nickname\":\"DanilV\",\"confirmedCount\":14,\"refusedCount\":5,\"firstDealDate\":1616687528952,\"medianResponseTime\":0,\"okReviewCount\":11,\"badReviewCount\":0,\"textReviewCount\":4,\"totalValueTrade\":0.05888727,\"tradeVolume\":{\"BTC\":0.05888727},\"currency\":{\"id\":\"RUB\",\"displayNameShort\":\"р.\"},\"tradeEnabled\":true,\"currentUser\":true,\"isNickChanged\":true,\"timeoutAccept\":5,\"timeoutTransferConfirm\":30,\"timeoutOpenDispute\":15,\"userBlockedTimes\":1,\"verified\":false,\"proTrader\":false,\"isFavoriteUser\":false,\"favoriteUser\":false,\"nickChanged\":true},\"cryptocurrency\":\"BTC\",\"type\":\"BUY\",\"terms\":\"Баксы рубли\",\"autoLimit\":false,\"fixedPrice\":43500,\"partnerLimitType\":\"NO_LIMIT\",\"partnerLimitDealsTotal\":\"LIMIT_0\",\"partnerLimitTradeVolume\":\"LIMIT_0\",\"partnerLimitPercent\":0,\"feePercents\":null}",
    "method": "POST",
    "mode": "cors"
});

I'm not a programmer and I can do all this only on weekends from work, before asking a question, I tried to do it myself, using examples. Thanks in advance
. I understand that headers is written as an array, but I can’t compose everything correctly

Answer 1

What you put in the code tag is the JavaScript that will work (send (try to send) the request).
Remove the only thing await.